KR20140120682A - Electric type Tilt and telescopic device according to sensing the steering wheel operating force of steering device - Google Patents

Electric type Tilt and telescopic device according to sensing the steering wheel operating force of steering device Download PDF

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Publication number
KR20140120682A
KR20140120682A KR1020130036842A KR20130036842A KR20140120682A KR 20140120682 A KR20140120682 A KR 20140120682A KR 1020130036842 A KR1020130036842 A KR 1020130036842A KR 20130036842 A KR20130036842 A KR 20130036842A KR 20140120682 A KR20140120682 A KR 20140120682A
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KR
South Korea
Prior art keywords
steering wheel
steering
tilt
external force
voltage value
Prior art date
Application number
KR1020130036842A
Other languages
Korean (ko)
Inventor
김응수
송제석
노승수
강병배
임종수
김영창
Original Assignee
한국델파이주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 한국델파이주식회사 filed Critical 한국델파이주식회사
Priority to KR1020130036842A priority Critical patent/KR20140120682A/en
Publication of KR20140120682A publication Critical patent/KR20140120682A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/181—Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/187—Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustment; with tilt and axial adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids
    • B62D15/021—Determination of steering angle
    • B62D15/0215—Determination of steering angle by measuring on the steering column
    • B62D15/022—Determination of steering angle by measuring on the steering column on or near the connection between the steering wheel and steering column
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
    • B62D5/0481—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures
    • B62D5/049—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures detecting sensor failures

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Controls (AREA)

Abstract

An external force sensitive electromotive tilt and telescopic device of a steering system is disclosed. The electric tilting and telescopic device according to the present invention includes a switch to which an allowance command for tilt and telescope operation is input and controls the up-down or front-back operation of the steering wheel by the driver's force when the switch is turned on, The MCU detects the sensor and converts it into a voltage value and transmits it to the MCU. The MCU controls the tilt motor and the telescope motor based on the voltage value, so that the steering wheel can move in the direction of the driver's force. .

Description

[0001] The present invention relates to an electric-powered tilt and telescopic device for an external-force-sensitive steering apparatus,

The present invention relates to a tilt and telescopic device, and more particularly, to a tilt and telescopic device that converts an operator's intention to a steering wheel position change into a voltage value to operate an electric motor to realize a tilt and a telescope, ≪ / RTI >

BACKGROUND ART [0002] Generally, an automobile steering apparatus is a device for changing a traveling direction of an automobile according to a driver's will. It is a device for arbitrarily changing a turning center of a front wheel of an automobile to assist a driver in moving the automobile in a desired direction Device.

In such a steering apparatus, the steering force generated by the driver operating the steering wheel is transmitted to the rack-pinion mechanism at the lower end through the steering shaft, and eventually the direction of both wheels is changed.

On the other hand, the steering system includes a telescope and a tilt function for changing the position of the steering wheel. Through this function, the driver can adjust the position of the steering wheel in the up-and-down direction and the front- It can be adjusted freely.

In the realization of the tilt and telescopic function, a manual type in which the driver manipulates the control lever directly to axially move the steering wheel or to rotate the steering wheel about the hinge axis to change the position of the steering wheel is well known. However, there is a problem that it requires a great deal of effort accompanied with troublesome operation.

An electric tilt and telescope device that uses an electric motor instead of a manual type has been developed, and the application of ehl to a vehicle at a high speed is on the trend. This realizes a tilt and telescopic function by controlling the operation of an electric motor using an external switch, so that there is an advantage that great power is not required in operation.

However, the known conventional transmission system, that is, the method of adjusting the position of the steering wheel by operating the switch, repeats the process of changing the position of the steering wheel by operating the switch and checking whether the position of the changed steering wheel is proper after the switch operation So that the optimum position was set.

In addition, since a tilt and telescopic function can be implemented through a single switch operation, an integrated switch of a complicated configuration is required, which is disadvantageous in cost, mass production, and assembly, And the like.

Korean Patent Publication No. 10-2007-0109370 (published on November 16, 2007)

SUMMARY OF THE INVENTION It is an object of the present invention to provide an external force sensitive electromotive tilt and telescopic device capable of intuitively adjusting a position by holding a steering wheel without a series of processes such as a switch operation and a position check.

Another problem to be solved by the present invention is that an integrated switch of a complicated configuration is not required, and therefore, the device configuration is simplified.

The present invention provides, as means for solving the problems, an electric tilt and telescopic device, which comprises a switch to which an allowance command for tilt and telescopic operation is inputted, An external force sensor senses the up / down or front / back operation of the wheel, converts it into a voltage value and transmits it to the MCU. The MCU controls the operation of the tilt motor and the telescopic motor based on the voltage value, And an external force sensing type electric tilt and telescopic device of the steering apparatus is provided.

Wherein the switch may be mounted on a cover member surrounding the steering column around the steering wheel.

The external force sensor may be installed in the steering column joint portion which surrounds the steering shaft and the upper and lower columns are connected to each other in a refracting manner.

The external force detection sensor may include an upper and a lower external force sensor for outputting a driving force input through the steering wheel into a voltage value when the steering wheel is tilted upward and downward and a steering wheel when the steering wheel is telescopically operated forward and backward. And a front and rear external force detecting sensor for outputting the power of the driver input through the input / output unit as a voltage value.

Preferably, amplification means for amplifying a voltage value output from the external force sensing sensor may be further included so that the output voltage value can be more easily recognized.

In addition, it is preferable that the MCU is configured to recognize the MCU as an operation signal only when a recognizable constant voltage value is recorded and when a predetermined power or more is applied and a voltage value equal to or higher than the predetermined voltage value is output.

According to the external force sensitive electromotive tilt and telescopic apparatus of the steering apparatus of the present invention, the driver's intention to change the steering wheel position is converted into a voltage value to operate the electric motor to implement the tilt and telescope. Therefore, it is possible to shift the steering wheel to the optimal position according to the driver's body condition by intuitively adjusting the position of the steering wheel without a series of processes such as switch operation and position check.

That is, the driver's force inputted through the steering wheel is reflected not through a plurality of switch operations, and the motor generates assist force in the direction of the force, thereby assisting the steering wheel in a precise and desired position So that the convenience of the operation in the steering wheel position changing operation can be maximized.

Further, since it is a structure that allows intuitive operation by the driver's force, there is no need for an integrated switch of a complicated configuration as in the conventional electric type apparatus for tilting and telescoping the steering wheel, and a simple ON / OFF type switch and several Because the function is implemented through the external force sensor, the configuration is simple, which leads to cost reduction, assembly and productivity improvement.

1 is a schematic perspective view of a steering apparatus to which an external force sensitive electromotive tilt and telescopic apparatus of a steering apparatus according to an embodiment of the present invention is applied;
2 is a side schematic view of a steering apparatus to which an external force sensitive electromotive tilt and telescopic device of a steering apparatus according to an embodiment of the present invention is applied.
FIGS. 3 and 4 are operational states of an external force-sensitive electromotive tilt and telescopic device of a steering apparatus 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. In the description of the present invention, a detailed description of known configurations will be omitted, and a detailed description of configurations that may unnecessarily obscure the gist of the present invention will be omitted.

FIG. 1 is a schematic perspective view of a steering apparatus to which an external force-sensitive electric tilt and telescopic apparatus of a steering apparatus according to an embodiment of the present invention is applied. FIG. 2 is a perspective view of a steering apparatus according to an embodiment of the present invention, 1 is a side schematic view of a steering apparatus to which the apparatus is applied.

The external force-sensitive electromotive tilting and telescopic apparatus of the steering apparatus shown in Figs. 1 and 2 has a switch 10 to which an allowance command for tilt and telescope manipulation execution is input, And a plurality of external force sensing sensors 30 for sensing the external force applied to the steering wheel 60, that is, the driver's force, when the scope operation is permitted.

The switch 10 may be a simple on / off switch 10 that allows or blocks the flow of electricity, and as shown by way of example in the drawings, the steering 10, in which the operating switch 10 of the conventional electric tilt and telescopic device is located, (Not shown) that surrounds the column 70. However, if the driver is in a position advantageous to operate, it can be applied without any restriction on the specific position.

The external force detection sensor 30 may be a means for generating a voltage proportional to the force when the steering wheel 60 is moved by a driver force such as a piezoelectric element or a String gage, 80 and between the steering column 70 and the steering column 60 so that the upper and lower columns are connected in a refracting manner.

Although the external force detection sensor 30 is provided between the steering column 70 and the steering wheel 60 in the figure, the present invention is not limited thereto. As described above, the upper and lower columns may be connected to each other Such as the handle portion of the steering wheel, including the joint portion 75 of the steering column 70 of the steering column 70, when the driver moves the steering wheel 60 back and forth or up and down It is possible.

The external force detection sensor 30 detects whether the steering wheel 60 is tilt up / down or telescope in / out operation by the driver force in the ON state of the switch 10 And outputs the converted voltage value to an MCU (Microprocessor unit) 20 which controls the overall control related to the tilt and telescopic functions.

Tilt and telescopic operation of the steering wheel 60 so that accurate positioning can be achieved through detection of forces in the directions of the tilt up / down or telescope in / out of the steering wheel 60, 30 may be configured to sense a force to manipulate the steering wheel 60 in the tilt up / down direction and a force to manipulate the steering wheel 60 in the telescope in / out direction, respectively, at different positions.

Preferably, the upper and lower external force detection sensors 32 and 38, which output the driver's force inputted through the steering wheel 60 as a voltage value when the steering wheel 60 is tilted up and down, The front and rear external force detection sensors 34 and 36 for converting the force of the driver inputted through the steering wheel 60 into a voltage value when the driver 60 is telescopically operated back and forth, It can be a configuration that is installed.

The MCU 20 recognizes the operation of turning on the switch 10 by the driver and detects the up and down or front and rear operating force of the steering wheel 60 by the driver's force when the switch 10 is turned ON Receives the voltage value output from the external force sensor 30 and outputs a control signal for controlling the operation of the tilt motor 50 and the telescope motor 40 based on the received voltage value.

In other words, the external force detection sensor 30 detects the force applied to the steering wheel 60 by the driver force when the switch 10 is turned ON, converts the detected force into a voltage value, and transmits the voltage value to the MCU 20 The MCU 20 controls the operation of the tilt motor 50 and the telescope motor 40 based on the position and the voltage value of the signal obtained from the external force sensor 30, (60) moves.

On the other hand, the MCU 20 recognizes the voltage value output from the external force sensor 30 and uses the voltage value as an output control value of the motor as it is, the output voltage value may be too low. Therefore, it is possible to further include amplification means (not shown) for amplifying the voltage value output from the external force sensor 30 so that the output voltage value can be more easily recognized and used.

Also, when the switch 10 is turned ON and a driver force for adjusting the position of the steering wheel 60 is input, the steering wheel 60 can be moved even to a fine touch in which the driver's intention is not reflected. Therefore, it is preferable that the MCU 20 is configured such that a recognizable constant voltage value is recorded, and the MCU 20 recognizes the voltage as a control signal only when a voltage greater than a predetermined voltage is output.

In FIG. 1, reference numeral 90 denotes a rack-and-pinion mechanism for converting the rotational motion of the steering wheel into a linear motion for front wheel steering.

Hereinafter, a tilt and telescopic function of the steering wheel performed by the external-force-sensitive electromotive tilting and telescopic device of the steering apparatus according to the embodiment of the present invention will be briefly described.

FIGS. 3 and 4 are operation states of an external force-sensitive electromotive tilt and telescopic apparatus of a steering apparatus according to an embodiment of the present invention. FIG. 3 is an operational state view of the present invention according to a tilting operation, FIG. 3 shows an operating state diagram of the present invention.

3, when the switch 10 is turned ON for the tilt operation of the steering wheel 60, the driver rotates the steering wheel 60 up or down (Tilt up / down) down direction, the external force sensor 30, which is located in a direction coinciding with the direction in which the force is applied, converts the driver's force input through the steering wheel 60 into a voltage value, ).

The MCU 20 selects the control target motor (tilt motor 50) based on the position and voltage value of the signal obtained from the external force sensor 30, determines the control direction and the control amount, and outputs the control signal to the tilt motor And the tilt motor 50 is driven by the rotation direction and the rotation amount instructed according to the signal of the MCU 20 so that the steering wheel 60 is displaced upward or downward by the driver's force.

The telescopic operation of Fig. 4 likewise allows the driver to telescope in / out the steering wheel 60 with a constant force while the switch 10 is turned on for the telescopic operation of the steering wheel 60, The external force sensor 30, which is located in a direction coinciding with the direction in which the force is applied, converts the driver's force input through the steering wheel 60 into a voltage value and outputs the detected voltage value to the MCU 20 .

The MCU 20 selects the control target motor (telescope motor 40) based on the position and voltage value of the signal obtained from the external force sensor 30, determines the control direction and the control amount, and outputs the control signal to the tilt motor And the telescopic motor 40 is driven by the rotation direction and the rotation amount instructed by the signal of the MCU 20 so that the steering wheel 60 is displaced in the front or rear direction of the driver force will be.

According to the external-force-sensitive electric tilt and telescopic device of the steering apparatus described above, the tilt and the telescope are implemented by operating the motor by converting the driver's will to the steering wheel position change into the voltage value. Therefore, it is possible to shift the steering wheel to the optimal position according to the driver's body condition by intuitively adjusting the position of the steering wheel without a series of processes such as switch operation and position check.

That is, the driver's force inputted through the steering wheel is reflected not through a plurality of switch operations, and the motor generates assist force in the direction of the force, thereby assisting the steering wheel in a precise and desired position So that the convenience of the operation in the steering wheel position changing operation can be maximized.

Moreover, since the intuitive operation by the driver's force is possible, the integrated switch of the complicated configuration as in the conventional electric type apparatus for the tilt and telescopic manipulation of the steering wheel is not required, and a simple ON / OFF type switch and several external forces Because the functions are implemented through the sensor, the configuration is simple, which leads to cost reduction, assembly and productivity improvements.

In the foregoing detailed description of the present invention, only specific embodiments thereof have been described. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

10: Switch 20: Microprocessor Unit (MCU)
30: external force sensor 40: telescope motor
50: tilt motor 60: steering wheel
70: steering column 80: steering shaft

Claims (6)

In an electric tilt and telescopic device,
And a switch to which an allowance command for executing a tilt and telescope operation is input. When the switch is turned ON, the external force sensor senses the up / down or front / back operation of the steering wheel by the driver's force, And the MCU controls the operation of the tilt motor and the telescopic motor based on the voltage value so as to move the steering wheel in a direction of the driver's force. The electric power steering type electric tilt and telescopic Device.
The method according to claim 1,
Wherein the switch is mounted on a cover member surrounding the steering column around the steering wheel. ≪ RTI ID = 0.0 > 8. < / RTI >
The method according to claim 1,
Wherein the external force sensing sensor is installed between a steering column joint or a steering column and a steering wheel, the steering column including an upper column and a lower column which are connected to each other so as to surround the steering shaft in a refracting manner.
The method according to claim 1 or 3,
The external force sensor includes:
An upper and lower external force detection sensor for outputting the driver force inputted through the steering wheel as a voltage value when the steering wheel is tilted up and down,
A front and rear external force sensor for outputting the power of the driver input through the steering wheel into a voltage value when the steering wheel is telescoped back and forth,
And a total of four external force detection sensors. The external force sensitive electromotive tilt and telescopic device of the steering system according to claim 1,
The method according to claim 1,
And amplifying means for amplifying a voltage value outputted from the external force detecting sensor. ≪ Desc / Clms Page number 19 >
The method according to claim 1,
Wherein the MCU recognizes the MCU as an operation signal when a recognizable constant voltage value is recorded and when a voltage equal to or greater than the predetermined voltage value is output by applying a constant force or more, Device.
KR1020130036842A 2013-04-04 2013-04-04 Electric type Tilt and telescopic device according to sensing the steering wheel operating force of steering device KR20140120682A (en)

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KR1020130036842A KR20140120682A (en) 2013-04-04 2013-04-04 Electric type Tilt and telescopic device according to sensing the steering wheel operating force of steering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130036842A KR20140120682A (en) 2013-04-04 2013-04-04 Electric type Tilt and telescopic device according to sensing the steering wheel operating force of steering device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101666015B1 (en) 2015-09-17 2016-10-13 태림산업(주) Simulation apparatus for intermediante shaft of steering system for vehicle
CN110550090A (en) * 2018-05-31 2019-12-10 比亚迪股份有限公司 Steering wheel position adjusting method, steering column and vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101666015B1 (en) 2015-09-17 2016-10-13 태림산업(주) Simulation apparatus for intermediante shaft of steering system for vehicle
CN110550090A (en) * 2018-05-31 2019-12-10 比亚迪股份有限公司 Steering wheel position adjusting method, steering column and vehicle

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