KR101755493B1 - Control method of motorized tail gate and control system thereof - Google Patents

Control method of motorized tail gate and control system thereof Download PDF

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Publication number
KR101755493B1
KR101755493B1 KR1020150174167A KR20150174167A KR101755493B1 KR 101755493 B1 KR101755493 B1 KR 101755493B1 KR 1020150174167 A KR1020150174167 A KR 1020150174167A KR 20150174167 A KR20150174167 A KR 20150174167A KR 101755493 B1 KR101755493 B1 KR 101755493B1
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KR
South Korea
Prior art keywords
lift motor
tail gate
signal
tailgate
motor
Prior art date
Application number
KR1020150174167A
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Korean (ko)
Other versions
KR20170067463A (en
Inventor
김준혁
제명권
Original Assignee
현대자동차 주식회사
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Priority to KR1020150174167A priority Critical patent/KR101755493B1/en
Publication of KR20170067463A publication Critical patent/KR20170067463A/en
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Publication of KR101755493B1 publication Critical patent/KR101755493B1/en

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/77—Power-operated mechanisms for wings with automatic actuation using wireless control
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/23—Actuation thereof
    • E05Y2201/246—Actuation thereof by motors, magnets, springs or weights
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2400/00—Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/44—Sensors therefore
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/546—Tailgates

Abstract

A method of controlling an electric tailgate according to an embodiment of the present invention includes: opening a tailgate using a lift motor; determining that the tailgate is fully opened; and, when it is determined that the tailgate is completely opened, And a step of shorting the positive terminal of the lift motor by electrically connecting the positive terminal and the negative terminal of the lift motor. If a signal for operating the lift motor is sensed after the step of shorting, the short can be canceled, and if a signal of the handle switch is input for manual operation after the shortening step, can do.

Description

TECHNICAL FIELD [0001] The present invention relates to a control method and a control system for an electric tailgate,

The present invention relates to an electric tailgate control method and a control system for preventing a tailgate from being opened and closed by using a lift motor and preventing abnormal closing in an open state.

Various products have been introduced for opening and closing a gate using a lift motor or opening and closing a window. The effects of the devices are well known, but generally, a tail gate of a vehicle is manually opened and closed Or the lift motor is opened and closed by using a rotating force.

Generally, a tail gate is attached to a rear end of an automobile body so as to be openable and closable around a hinge, and an electric actuator for opening and closing the tail gate.

In the conventional electric actuator, the lift motor is configured to be connectable to the vehicle body by the lift motor connection portion, so that the rotational force of the lift motor is transmitted to the rod arm to open the tail gate.

In addition, when the weight change due to the design change occurs frequently, changes in the body mounting point or the tailgate mounting point frequently occur, and if it is difficult to do so, it is necessary to change the springs to change the length of the spindle drive unit.

In this case, the modification period may become very long, which makes it difficult to respond to the vehicle production schedule.

After mass production, tailgate deflection may occur due to increased total weight of the tailgate when the user mounts a black box or other accessories and wiring tuning, or when mounting a weight on a tailgate trim.

Further, when the tail gate is closed, it must be closed by the rotational force of the lift motor. However, there is a sagging phenomenon after the tail gate is fully opened by the weight of the tail gate.

There is a risk of injury in turning around if the user perceives that the tailgate is stuck while the user is opening the door and removing the object. Particularly, in a state where the vehicle is parked at a slant, the tail gate may be closed unintentionally, thereby reducing the convenience of the user.

The spindle type power tailgate unit is susceptible to weight and is susceptible to sagging. There are frequent changes in the design phase as the weight of the tailgate (lamp, trim, panel, etc.) undergoes design changes.

The spindle type power tailgate must be able to open and close easily by hand, not by electric type, so it is difficult to increase spring elasticity to prevent sag.

It is an object of the present invention to provide an electric tailgate control method and a control system which can prevent a tailgate from unintentionally closing or descending, thereby improving user's convenience and securing stability.

A method of controlling an electric tailgate according to an embodiment of the present invention includes: opening a tailgate using a lift motor; determining that the tailgate is fully opened; and, when it is determined that the tailgate is completely opened, And a step of shorting the positive terminal of the lift motor by electrically connecting the positive terminal and the negative terminal of the lift motor.

After the shorting step, if the power switch signal for operating the lift motor is sensed, the short can be canceled immediately before the operation.

A signal for actuating the lift motor may be generated by a power switch mounted on the vehicle and operated by a user to close or open the tailgate.

And sensing the rotational position and the number of revolutions of the lift motor to determine that the tail gate is fully opened.

The rotational position and the rotational speed of the lift motor can be sensed by a sensor.

The shorting may be performed in a state where no signal for operating the lift motor is sensed.

When the handle switch for opening and closing the tail gate is operated in a state in which the motor is in a short state, the short circuit of the motor can be released.

A control system for an electric tailgate according to an embodiment of the present invention includes a tail gate rotatably installed on a vehicle body, a moving member connected to the other side of the tail gate, a spindle screwed to the moving member, And a control unit configured to control rotation of the lift motor, wherein, when it is determined that the tail gate is completely opened, the control unit electrically connects the power source positive terminal and the negative terminal of the lift motor So that it can be short-circuited.

The control unit may cancel the shot when a signal for operating the lift motor is sensed.

A signal for actuating the lift motor may be generated from a handle switch disposed in the tail gate and operated by a user to close or open the tail gate.

A signal for actuating the lift motor may be generated by a power switch mounted on the vehicle and operated by a user to close or open the tailgate.

The controller may sense the rotational position and the rotational speed of the lift motor to determine that the tail gate is completely opened.

The rotational position and the rotational speed of the lift motor can be sensed by a sensor.

The positive side and negative side of the power supply side of the lift motor can be connected and shorted in a state in which a signal for operating the lift motor is not detected.

In order to achieve the above object, according to the present invention, when the power supply side positive pole and the negative pole of the lift motor are connected and shorted, the lift motor is prevented from rotating due to an external force inputted through the moving member and the spindle.

Thus, when the vehicle is parked at a sloping position and the tail gate is open, the tail gate can be prevented from unintentionally closing or shaking in advance.

In addition, it is possible to reduce the cost and the weight of the effect by preventing rotation of the lift motor under the control of the control unit without providing a separate mechanism for preventing the tail gate from being abnormally closed.

In addition, although the existing bearing capacity is composed only of the spring force and the lifter frictional force which can not be controlled by the controller, the bearing capacity which can be controlled by the controller through the motor short is added, which affects the performance of the weight fluctuation of the weight running on the tailgate Less received.

In addition, if the user intends to manually open or close the tailgate through the switch added to the grip handle, the user can open and close the user by deleting the short holding force of the motor by releasing the short of the motor.

Fig. 1 is a schematic view of a control system of an electric tailgate according to an embodiment of the present invention.
2 is a flowchart illustrating a method of controlling an electric tailgate according to an embodiment of the present invention.
3 is a schematic configuration diagram of a handle according to an embodiment of the present invention.

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

Fig. 1 is a schematic view of a control system of an electric tailgate according to an embodiment of the present invention.

1 and 2, the control system of the electric tailgate includes a handle switch 105, a power switch 103, a control unit 100, a power unit 110, a lift motor 115, a coupling 117, A spindle 120, and a tail gate (not shown).

The handle switch 105 is mounted on one side of the tail gate so that the user can manually open or close the tail gate. The power switch 103 is installed on the driver's seat of the vehicle, To open or close it. In addition, the power switch 103 may include all the signals input to operate electrically. For example, a signal received via CAN communication, such as a smart key open signal.

The controller 100 controls the power unit 110 using a signal generated from the power switch 103 to apply power to the lift motor.

In an embodiment of the present invention, the control unit may be implemented as one or more microprocessors operating with a set program, and the set program includes a series of instructions for performing the method according to an embodiment of the present invention .

In the embodiment of the present invention, when power is applied to the lift motor 115, the lift motor 115 is rotated forward or reverse to rotate the spindle 120 through the coupling 117 .

As the movable member 125 moves back and forth in accordance with the rotation of the spindle 120, the tail gate is opened or closed. The spindle 120 is screwed to the moving member 125 so that the moving member 125 moves back and forth as the spindle 120 rotates.

A male thread is formed on an outer circumferential surface of the spindle 120 and a female thread is formed on an inner circumferential surface of the moving member 125. The elastic member 200 is disposed on the inner circumferential surface of the moving member 125 to push the moving member 125 outward, (125). Accordingly, the elastic member 200 serves to support the weight of the tail gate in a state where the tail gate is opened.

2 is a flowchart illustrating a method of controlling an electric tailgate according to an embodiment of the present invention.

Referring to FIG. 2, in step S300, the controller 100 waits for a command for performing an opening operation or a closing operation of the tail gate. In step S310, the controller 100 opens or closes the tail gate And performs an operation.

In step S320, the controller 100 determines whether the tail gate is completely opened. If it is determined that the tail gate is not completely opened, S300 is performed, and if it is determined that the tail gate is completely opened, S330 is performed.

In an embodiment of the present invention, the open amount of the tail gate may be sensed by a Hall sensor (not shown) provided in the lift motor 115, and the structure of the hall sensor is known in the art, The detailed structure and function are omitted.

If it is determined that the tail gate is completely opened, the power supply side positive pole and the negative pole of the lift motor 115 are connected to each other and short-circuited at S330.

In the embodiment of the present invention, the power supply side positive pole and the negative pole of the lift motor 115 are short-circuited by connecting the positive pole and the negative pole of the lift motor 115, The lift motor 115 is prevented from rotating due to an external force input through the moving member 125 and the spindle 120. [

Thus, when the vehicle is parked at a slant and the tail gate is opened, the tail gate is prevented from unintentionally closing. In addition, it is possible to reduce the cost and weight by preventing rotation of the lift motor under the control of the control unit 100 without providing a separate mechanism for preventing the tail gate from closing abnormally.

It is determined in S340 whether or not a signal from the handle switch 105 is generated in S340 while a positive pole and a minus pole on the power supply side of the lift motor 115 are connected to each other. It is determined whether a signal is generated.

If an ON signal for closing or opening the tailgate is generated at S340 and S360, the short-circuiting operation of connecting the plus pole and the minus pole of the lift motor 115 is canceled at S350. If S340 is performed, S300 is performed, S360 is performed, S350 is performed, and S310 is performed.

If it is not determined in S340 and S360 that the on-signal for closing or opening the tail gate is generated, S330 is performed again.

As described above, when the power supply side positive pole and the negative pole of the lift motor 115 are connected to each other and shorted, the lift motor is prevented from rotating due to an external force inputted through the movable member 125 and the spindle 120 .

Therefore, when the vehicle is parked on the sloping side and the tail gate is opened, the tail gate can be prevented from unintentionally closing or shaking in advance, and a separate mechanism for preventing the tail gate from closing abnormally By preventing the rotation of the lift motor 115 under the control of the control unit 100, it is possible to reduce the cost and weight for the effect.

When operating by motor, the conventional method opens / closes with open / close command (driver's seat switch, outside handle switch, trim switch, remote control key), and when the motor is short , The controller added a short-release logic before giving an open / close command to the lifter motor.

When operating manually, the conventional method can be opened and closed by hand, and when it is open, it is closed even if it is pushed anywhere, and it is opened even if it is pushed anywhere. With this technology application, lifter motor short- , The tailgate is very difficult to move by hand, and when the switch of the grip handle attached to the trim is pressed, the motor short is released and the operation of manually opening and closing is possible.

3 is a schematic block diagram of a handle according to an embodiment of the present invention.

3, the grip handle includes a pusher 320, a coil spring 315, a switch 300, a wire 305, and a connector 310.

When the user presses the pushing portion 320 of the grip handle 105, the coil spring 315 is compressed and the switch 300 is operated. And transmits an operation signal to the control unit 100 through the control unit 310.

When the operation signal of the switch 300 is transmitted to the control unit 100, the control unit 100 releases the shot set by the motor 115 to facilitate manual operation of the tail gate.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

100: handle switch 107: power switch
100: control unit 110: power unit
115: Lift motor 117: Coupling
120: spindle 125: moving member
200: elastic member

Claims (12)

Opening a tail gate using a lift motor;
Determining that the tail gate is completely opened; And
Shorting the power source side positive terminal and the negative terminal of the lift motor by electrically connecting the tailgate to the lift motor if it is determined that the tail gate is completely opened; Lt; / RTI >
Shortening the time; Since the,
And when the signal for activating the lift motor is sensed, the short circuit is released. delete The method of claim 1,
Wherein the signal for operating the lift motor is a signal for driving the lift motor,
Wherein the tailgate is generated by a power switch disposed in the tailgate and operated by a user to close or open the tailgate. The method of claim 1,
And when the operation signal of the handle switch is inputted, the short circuit of the lift motor is released to facilitate the manual operation of the user. The method of claim 1,
Sensing a rotational position and a rotational speed of the lift motor to determine that the tail gate is fully opened;
And a control unit for controlling the electric motor. The method of claim 1,
Shortening the time; Is performed in a state in which a signal for operating the lift motor is not sensed. A tail gate rotatably installed on the vehicle body;
A moving member connected to the other side of the tail gate;
A spindle screwed to the moving member;
A lift motor arranged to rotate the spindle; And
A control unit configured to control rotation of the lift motor; Lt; / RTI >
Wherein the control unit electrically connects the power source plus terminal and the minus terminal of the lift motor to short the tilting gate,
Wherein,
And when the signal for activating the lift motor is sensed, the control unit releases the shot. delete 8. The method of claim 7,
The signal for operating the lift motor
And a power switch disposed in the tail gate for actuating the user to close or open the tailgate. 8. The method of claim 7,
When the operation signal of the handle switch is inputted, the lift motor is short-circuited to facilitate the manual operating force of the user. 8. The method of claim 7,
Wherein,
Wherein the controller detects the rotational position and the rotational speed of the lift motor to determine that the tail gate is fully opened. 8. The method of claim 7,
Wherein a positive side and a negative side of a power supply side of the lift motor are connected to each other to be shorted in a state in which a signal for operating the lift motor is not sensed.
KR1020150174167A 2015-12-08 2015-12-08 Control method of motorized tail gate and control system thereof KR101755493B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150174167A KR101755493B1 (en) 2015-12-08 2015-12-08 Control method of motorized tail gate and control system thereof

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Application Number Priority Date Filing Date Title
KR1020150174167A KR101755493B1 (en) 2015-12-08 2015-12-08 Control method of motorized tail gate and control system thereof

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KR101755493B1 true KR101755493B1 (en) 2017-07-27

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200491260Y1 (en) * 2018-05-08 2020-03-11 광저우 창이 오토 파트 컴퍼니., 리미티드. A mechanical device for electric rear door double push rod
KR102108262B1 (en) * 2018-11-06 2020-05-29 주식회사 진우에스엠씨 Control System for Rear Door of Armored Vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4109121B2 (en) * 2001-04-10 2008-07-02 ヴァレオ ズィッヒャーハイツジステーメ ゲーエムベーハー Device for automatic operation of vehicle doors
JP2015086531A (en) * 2013-10-29 2015-05-07 アイシン精機株式会社 Control device and control method of vehicle opening-closing body

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4109121B2 (en) * 2001-04-10 2008-07-02 ヴァレオ ズィッヒャーハイツジステーメ ゲーエムベーハー Device for automatic operation of vehicle doors
JP2015086531A (en) * 2013-10-29 2015-05-07 アイシン精機株式会社 Control device and control method of vehicle opening-closing body

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