KR101656864B1 - The motor driven power steering made with both axis - Google Patents

The motor driven power steering made with both axis Download PDF

Info

Publication number
KR101656864B1
KR101656864B1 KR1020150168375A KR20150168375A KR101656864B1 KR 101656864 B1 KR101656864 B1 KR 101656864B1 KR 1020150168375 A KR1020150168375 A KR 1020150168375A KR 20150168375 A KR20150168375 A KR 20150168375A KR 101656864 B1 KR101656864 B1 KR 101656864B1
Authority
KR
South Korea
Prior art keywords
gear
power transmission
power
shaft
gears
Prior art date
Application number
KR1020150168375A
Other languages
Korean (ko)
Inventor
유광영
Original Assignee
주식회사 지영린시스템
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.)
Filing date
Publication date
Application filed by 주식회사 지영린시스템 filed Critical 주식회사 지영린시스템
Priority to KR1020150168375A priority Critical patent/KR101656864B1/en
Priority to PCT/KR2015/013113 priority patent/WO2017094934A1/en
Application granted granted Critical
Publication of KR101656864B1 publication Critical patent/KR101656864B1/en

Links

Images

Classifications

    • 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
    • B62D5/0421—Electric motor acting on or near steering gear
    • B62D5/0424—Electric motor acting on or near steering gear the axes of motor and final driven element of steering gear, e.g. rack, being parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • B62D3/04—Steering gears mechanical of worm type
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F16H1/166—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel with members rotating around axes on the worm or worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/039—Gearboxes for accommodating worm gears

Landscapes

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

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an automotive auxiliary steering apparatus provided with a two-shaft power transmitting apparatus.
In an automotive auxiliary steering device (1) equipped with a two-shaft power transmission device,
A handle shaft gear 100 formed on a handle shaft 110 coupled with a steering wheel H and a wheel shaft S and a first power transmission portion 200) and a second power transmitting portion (300) engaged with the other side of the handle shaft gear (100) like the first power transmitting portion. And a power generation unit 400 for generating power of the first and second power transmission units 200 and 300. The power generation unit 400 generates power by using a signal sensed through a sensor connected to the steering wheel H, (400) and the first and second power transmission units (200, 300) to assist the direction change capability of the vehicle.
The power generating unit 400 includes a power generator 410 including a driving motor 411, a speed reducer 412 and a main gear 413. The first and second power transmitting units 200 and 300 And the power generating device 410 supplies power to the first and second power transmission parts 200 and 300 alone or power to the first and second power transmission parts 200 and 300 And the like.
The first power transmission unit 200 includes a first gear 210 engaged with one side of the main gear 413 of the power generating unit 400 and a second gear 210 coupled with the first gear 210 in the axial direction A first power transmission device 220; And a second gear 230 axially coupled to the first power transmission device 220. The second gear 230 is engaged with one side of the handle shaft gear 100, The second power transmission unit 300 includes a third gear 310 coupled to the other side of the main gear 413 of the power generating unit 400 in the same manner as the first gear 210 of the first power transmission unit 200, A second power transmission device 320 axially coupled to the third gear 310; And a fourth gear (330) axially coupled to the second power transmission device (320), wherein the fourth gear (330) of the first power transmission portion (200) 330 are engaged with the other side of the handle shaft gear (100).
The first and second power transmission devices 220 and 320 are formed by a combination of gears or a disc type and are formed by an electromagnetic clutch system driven by an input of an electronic signal, The auxiliary steering apparatus 1 is disposed between the second gear 230 of the first power transmission unit 200 and the handle shaft gear 100 or between the fourth gear 330 of the second power transmission unit 300 and the handle shaft 32. [ And a rotation direction switching gear (500) positioned between the gears (100) to switch the rotation direction of the gears in opposite directions.
Accordingly, the present invention is a device for assisting a steering device necessary for changing directions of an automobile, and is simple in construction and excellent in durability. By operating by the organic combination of the respective components, it not only assists the direction change of the automobile, The steering handle H can be easily operated, and safety is excellent.
In addition, there is an advantage in that the load of the electric system due to an increase in power consumption in the automobile is reduced, and the driver can feel the steering feel of the natural steering wheel.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a motor-driven power steering apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automotive auxiliary steering system equipped with a dual-axis power transmission device for replacing a conventional MDPS (Motor Driven Power Steering), and more particularly, The first and second power transmission units are powered by the power generating unit to assist the steering ability of the vehicle. Therefore, the first and second power transmission units are not only excellent in safety, but also have a steering feeling transmitted to the driver, And more particularly, to an automotive assist steering system equipped with a two-shaft power transmitting apparatus which is excellent in operational feeling (handling).

The steering apparatus is a device that allows the driver to freely change the traveling direction of the vehicle according to the needs of the driver by rotating the steering wheel. The steering apparatus arbitrarily changes the turning center of the front wheel of the vehicle so that the driver can advance the vehicle in a desired direction .

In order to steer the wheels while the vehicle is stationary, it is necessary to rotate the steering wheel with greater force than the friction force between the wheels and the road surface. In particular, when the weight of the vehicle is large and the width of the wheel is wide, The driver's steering force is further increased.

In this steering apparatus, an auxiliary steering apparatus for transmitting power to assist the driver's power is added. A hydraulic steering system (HPS) using a hydraulic pressure of a hydraulic pump and a hydraulic steering system An MDPS (Motor Driven Power Steering, hereinafter referred to as "MDPS") is used (EPS is also referred to as Electronic Power Steering).

The HPS uses a heavy hydraulic pump and hydraulic oil (about 1 [liter]). Heavy equipment is widely used, and every time the hydraulic oil is changed, the cost is incurred. The MDPS using an electric motor has become increasingly popular since the 1990s.

The MDPS is a device that assists the steering ability of the vehicle by driving the driving motor appropriately in consideration of the speed of the vehicle, etc. The signal sensed by various sensors connected to the steering wheel is superior in performance to the existing HPS, And the fuel efficiency is improved by weight reduction.

[0003] As shown in Fig. 9 (a), there is a prior art related to an automotive assisted steering system equipped with a dual-shaft power transmission system, which is disclosed in Korean Patent Publication No. 10-0854472 entitled " 1 ") is a bearing for supporting a worm interlocked with the rotation of the steering assist motor in the housing, a bearing for suppressing the movement of the bearing in the radial direction on the outer periphery of the bearing, And the worm is biased to the engaging portion (engagement portion) with the worm wheel by a portion having a small force suppressing the movement of the bearing in the radial direction (centrifugal direction) The worm can be made less likely to move along the teeth of the worm wheel by the portion of the worm wheel so that the amount of backlash between the worm and the worm wheel can be reduced by the elastic body, The present invention relates to an electric steering system that allows relatively small.

As another prior art, as shown in Fig. 9 (b), an "electric auxiliary steering device" (hereinafter referred to as "prior art 2") of Korean Patent Registration No. 10-1100671 is used for operating the steering wheel To an electric auxiliary steering apparatus which applies an auxiliary steering force to a rack bar by using a linear pulling means which is wound and unwound by a driving means driven by a driving means.

However, the MDPS (Motor Driven Power Steering) of the related art including the prior arts 1 and 2 is an apparatus for assisting the steering of the vehicle as shown in FIG. 1 (a) It may be a factor that interferes with the driver's steering when the drive motor fails or breaks.

Also, due to the intervention of the MDPS in handling the steering wheel, the response speed is slower than the speed at which the automobile is operated, making it difficult to operate the steering wheel at the time of overspeed.

For example, after the steering wheel is largely rotated, the steering wheel returns to its original position later than expected due to a delay in the self-return of the steering wheel.

In addition, the steering wheel transmits the road surface state to the driver in the form of vibration, and through this feedback, it is possible to grasp the state of the road surface and the grip of the tire through the feedback to help safe driving. However, due to the excessive intervention of the MDPS, There is a problem in that the feedback of the signal is disconnected.

In addition, the normal operation current of the motor driving the MPDS is considerably high at about 78 [A], which is close to the capacity of the alternator / generator installed in a conventional gasoline vehicle.

That is, in the conventional MDPS, a counter electromotive force is generated by temporarily sending a current to the driving motor for reaction speed while driving the vehicle using a bi-directionally rotating driving motor. As a result, Is consumed by the drive motor of the motor.

The back electromotive force is the driving force which causes current to flow in the direction opposite to the desired current direction. It is the effective electromotive force acting to stop the current flowing in the predetermined direction in the system, and corresponds to the reaction relation to the action of the dynamic system.

Accordingly, if the system is damaged due to an increase in power consumption in the automobile due to an increase in power consumption in the automobile, it is impossible to steer due to failure or damage of the driving motor driving the MDPS as described above.

This is because, when the power of the driving motor of the MDPS is interrupted, a certain amount of force is required to turn the driving motor by an external force. When the driving motor is directly connected to the steering system, a torque required for steering is secured There is a reduction gear between the drive motor and the steering system. Therefore, the greater the reduction ratio of the reduction gear, the greater the force required to rotate the drive motor, so that a force several tens of times greater than the usual steering wheel rotation is required.

Therefore, the moment the power is cut off to the driving motor, the steering wheel feels as if it is fixed, and the driver can not control the driving direction of the vehicle in a desired direction.

Korean Registered Patent No. 10-0854472 (2008.08.20) Korean Registered Patent No. 10-1100671 (December 23, 2011)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

According to the present invention, it is possible to replace the driving motor that rotates in both directions, which is configured in the conventional motor-driven steering (MDPS), by a single-directional driving motor, And an automotive auxiliary steering device equipped with a two-shaft power transmission device.

It is still another object of the present invention to provide a motor drive device that does not require a large amount of current needed to temporarily transfer a current in the opposite direction to a driving motor rotating in both directions due to the configuration of the first and second power transmission devices, So that the load of the electric system of the vehicle due to the power consumption is reduced, thereby improving the stabilization of the electronic system in the vehicle.

In addition, since the components constituting the automotive auxiliary steering system equipped with the biaxial power transmission device according to the present invention are simple, the durability is excellent, and the driver feels a natural sense of handling without mechanical feeling .

In order to accomplish the above object, the present invention has been made to solve the above problems,

In an automotive auxiliary steering apparatus equipped with a two-shaft power transmission apparatus,

A handle shaft gear (H) formed on a steering shaft (H) and a handle shaft coupled to the wheel shaft;

A first power transmission part engaged with one side of the handle shaft gear;

A second power transmission portion that engages with the other side of the handle shaft gear like the first power transmission portion;

And a power generating unit for generating power of the first and second power transmission units,

And the power generation unit and the first and second power transmission units are activated by a signal sensed through a sensor connected to the steering wheel (H), thereby assisting the steering ability of the vehicle.

At this time,

And a power generation device including a drive motor, a speed reducer, and a main gear, and supplies power to the first and second power transmission parts, and the power generation device supplies power to the first and second power transmission parts alone, And the two power transmission parts, respectively.

Further, the first power transmission portion may include:

A first gear engaged with one side of the main gear of the power generating portion;

A first power transmission device axially coupled to the first gear; And

And a second gear axially coupled to the first power transmission device,

And the second gear is engaged with one side of the handle shaft gear,

The second power transmission unit includes:

A third gear meshed with the other side of the main gear of the power generating portion in the same manner as the first gear of the first power transmitting portion;

A second power transmission device axially coupled to the third gear; And

And a fourth gear axially coupled to the second power transmission device,

And the fourth gear is engaged with the other side of the handle shaft gear in the same manner as the second gear of the first power transmission portion.

The first and second power transmission devices are formed by a combination of gears or a disk type, and are formed by an electromagnetic clutch system driven by an input of an electronic signal,

And a rotation direction switching gear which is disposed between the second gear of the first power transmission portion and the handle shaft gear or between the fourth gear of the second power transmission portion and the handle shaft gear to switch the rotation direction of the gear in the opposite direction .

It should be understood, however, that the terminology used herein is for the purpose of describing the claimed invention in its broadest possible form and should not be construed in a limiting sense. It should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

As described above, according to the present invention,

A bi-directionally rotating drive motor constituted by a conventional motor-driven steering device (MDPS) can be replaced with a driving motor rotating in a unidirectional direction in an automotive auxiliary steering apparatus provided with a two-axis power transmission apparatus of the present invention, The life of the product is prolonged so that the safety of the product is excellent.

Further, due to the configuration of the first and second power transmission apparatuses, which are components of the present invention, a large amount of current required to temporarily transmit the current in the opposite direction to the drive motor rotating in both directions is not required, and the back electromotive force It is possible to reduce the load of the electric system of the vehicle due to power consumption, thereby enhancing the stabilization of the electronic system in the vehicle.

Further, the components constituting the present invention are simple, durability is excellent, products are easily exchanged and handled, and the driver responds quickly to the steering wheel when he / she operates the steering wheel, and feel natural feeling without mechanical feeling.

In addition, since the reaction speed is fast, it is possible to provide an optimal auxiliary steering apparatus suitable for autonomous vehicles and an optimal system of autonomous vehicles using the same.

In addition, it is a very effective invention because it is possible to easily operate the steering assist system even if a problem or breakage occurs only in an automotive assist steering system equipped with a biaxial power transmission device according to the present invention due to system damage.

FIG. 1 is a simplified view of an automotive assist steering system equipped with a conventional MDPS and a two-shaft power transmitting apparatus according to the present invention.
2 is a block diagram of an automotive assist steering system equipped with a two-shaft power transmitting apparatus according to the present invention.
Fig. 3 shows an embodiment of an operational flowchart of an automotive auxiliary steering system equipped with a biaxial power transmission device of the present invention.
FIG. 4 is a simplified diagram showing the operation of the automotive auxiliary steering apparatus provided with the dual axis power transmitting apparatus of the present invention.
5 is a first perspective view of an automotive assist steering system equipped with a biaxial power transmission apparatus according to an embodiment of the present invention.
6 is a front view of an automotive assist steering system equipped with a dual axis power transmission apparatus according to an embodiment of the present invention.
FIG. 7 is a second state perspective view of an automotive assist steering system equipped with a biaxial power transmission apparatus according to an embodiment of the present invention.
8 is a state perspective view according to an embodiment in which a plurality of power generation devices among constituent elements of an automotive auxiliary steering system equipped with a dual axis power transmission apparatus of the present invention are constituted.
9 is a representative view of the prior art for an automotive assist steering system equipped with a two-shaft power transmission apparatus of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the configuration and operation of an automotive auxiliary steering system equipped with a dual axis power transmitting apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a simplified view of an automotive auxiliary steering system equipped with a prior art MDPS and a two-shaft power transmission apparatus according to the present invention, and FIG. 2 is a block diagram of an automotive auxiliary steering system equipped with a two- will be.

In an automotive auxiliary steering device (1) equipped with a two-shaft power transmission device,

A handle shaft gear 100 formed on a handle shaft 110 coupled with a steering wheel H and a wheel shaft S;

A first power transmitting portion 200 engaged with one side of the handle shaft gear 100;

A second power transmitting portion 300 that engages with the other side of the handle shaft gear 100 in the same manner as the first power transmitting portion;

And a power generating unit 400 for generating power of the first and second power transmission units 200 and 300,

The power generation unit 400 and the first and second power transmission units 200 and 300 are operated by a signal sensed through a sensor connected to the steering wheel H .

5 to 7, the power generating unit 400 includes a power-

And a power generator 410 composed of a drive motor 411, a speed reducer 412 and a main gear 413 to supply power to the first and second power transmission units 200 and 300.

The drive motor 411 included in the power generation apparatus 410 of the present invention is a motor that is configured in a conventional MDPS and rotates in a single direction, not a motor that rotates in both directions by an electronic signal. Thereby reducing the overall power consumption required to drive the automobile by minimizing the current and reducing the active power required for steering to change the direction of travel of the vehicle.

In other words, the power consumption of the automobile is reduced due to the driving motor 411 rotating in the unidirectional direction of the power generator 410, thereby stabilizing the system of the automotive electric system.

Also, as shown in FIG. 1 (b) or FIG. 5 to FIG. 8,

The first and second power transmission units 200 and 300 may be configured to supply power to the first and second power transmission units 200 and 300 alone or to supply power to the first and second power transmission units 200 and 300, respectively.

The power generator 410 is not necessarily required to supply power to the first and second power transmission units 200 and 300 as shown in FIG. 1 (b) or FIGS. 5 to 7, Lt; / RTI >

This is because the first gear 210 formed in the first power transmission portion 200 and the third gear 310 configured in the second power transmission portion 300 are engaged with each other to rotate the main gear 413 The first and third gears 210 and 310 are rotated.

At this time, the first and third gears 210 and 310 are engaged with both sides of the main gear 413 due to the characteristics of the gears and rotate in a direction opposite to the main gear 413, Thereby rotating in the same direction.

That is, when the main gear 413 rotates clockwise, the first and third gears 210 and 310 rotate in a counterclockwise direction.

On the other hand, when the power generator 410 supplies power to the first and second power transmission units 200 and 300 as shown in FIG. 1B or FIG. 8, the main gear 413 and the first The configuration of the three gears 210 and 310 may be omitted and the second and fourth gears 230 and 230 may be connected to the power generating device 410 including the drive motor 411 and the reducer 412 in which the main gear 413 is omitted. The second and fourth gears 230 and 330 are connected by the first and second power transmission devices 220 and 320 which are configured to be connected to the steering wheel H and connected to the steering wheel H, .

As described above, the first power transmission portion 200 shown in FIGS.

A first gear 210 meshing with one side of the main gear 413 of the power generating unit 400;

A first power transmission device (220) axially coupled to the first gear (210); And

And a second gear (230) axially coupled to the first power transmission device (220)

The second gear 230 is engaged with one side of the handle shaft gear 100,

The second power transmission portion 300 includes:

A third gear 310 meshing with the other side of the main gear 413 of the power generating portion 400 in the same manner as the first gear 210 of the first power transmission portion 200;

A second power transmission device (320) axially coupled to the third gear (310); And

And a fourth gear (330) axially coupled to the second power transmission device (320)

The fourth gear 330 is formed to engage with the other side of the handle shaft gear 100 in the same manner as the second gear 230 of the first power transmission portion 200.

That is, when the main gear 413 of the power generator 410 rotates as in the embodiment of the present invention, the first and third gears 210 and 310 engaged with both sides of the main gear 413 rotate, And third gears 210 and 310 are connected to second and fourth gears 230 and 330 through first and second power transmission devices 220 and 320 which are operated by signals sensed by sensors connected to the steering wheel H, To rotate the handle shaft gear 100 engaged with the second and fourth gears 230 and 330 to assist steering of the driver.

The first and second power transmission devices 220 and 320 are of an open-close type electromagnetic clutch type which is composed of a combination of gears or a disk type and is driven by the input of an electronic signal, The types of gears and the number of gears included in the transmission units 200 and 300 and the first and second power transmission devices 220 and 330 and the like are only examples for explaining the present invention, Should be recognized.

Although the combination of the components of the embodiments described above can assist the steering of the driver through the handle shaft gear 100, the coupling up to this point can be questioned about the utilization of the driving motor 411 rotating in one direction have.

Therefore, in order to solve this problem, in the embodiment of the present invention, the second gear 230 of the first power transmission unit 200 and the handle shaft gear 100 or the fourth gear of the second power transmission unit 300 And a rotation direction switching gear 500 disposed between the handle shaft gears 100 and 330 and the handle shaft gear 100 to switch the rotation direction of the gear in the opposite direction. The driving motor 411 rotating in the unidirectional configuration formed in the apparatus 1 is connected to the first and second power transmission parts 200 and 300 and the rotation direction switching gear 500, The same effect as that of the driving motor rotated in both directions configured in the conventional MDPS can be exhibited.

However, the rotation direction switching gear 500 should be configured the same as the gear ratio of the handle shaft gear 100.

FIG. 3 is a view showing an operation flow chart of an automotive auxiliary steering system equipped with a two-shaft power transmission apparatus according to the present invention, showing the steering of a vehicle equipped with an embodiment of the present invention. FIG. FIG. 2 is a schematic view illustrating operation of an automotive auxiliary steering apparatus provided with an apparatus; FIG.

3, when the driver manipulates the steering wheel H in order to change the traveling direction of the automobile, the signal detected by the driver's steering wheel H in the direction of operation of the driver through the sensor connected to the steering wheel H 1 and 2 power transmission devices 220 and 320 to the open or close state.

For example, when the operating direction of the steering wheel H is clockwise, the first power transmission device 220 is changed from the open state to the close state by the sensed signal, The second power transmission device 320 maintains the open state and the second gear 230 of the third and fourth gears 310 and 330 engages the second gear 230 engaged with the shaft gear 100 to assist steering of the driver. The third and fourth gears 310 and 330 rotate along the main gear 413 without interfering with the rotating force of the first and second gears 210 and 230 as bearings assisting idling.

Similarly, when the steering wheel H is operated in the counterclockwise direction, the second power transmission device 320 is changed to the close state, and the rotation of the third gear 310 causes the handle shaft gear 100 The first power transmission device 220 maintains the open state to assist the idle rotation of the first and second gears 210 and 230. In this case, .

5 to 7, the first and third gears 210 and 310 are fixed to a part of the power generating part 400 and the first and third gears 210 and 310, A main housing 600 configured to rotate and a through hole 710 through which the lower portions of the shafts of the first and third gears 210 and 310 are respectively inserted and a lower portion of the shaft of the main gear 413 is fixed to the upper surface, The first and second power transmission devices 220 and 320 are fixed on the same axis line as the through hole 710 and the first and second gears 210 and 310 are configured to rotate the main gear 413 and the first and third gears 210 and 310, (700); And the second and fourth gears 230 and 330 and the rotation direction switching gear 500 are fixed to rotate the second and fourth gears 230 and 330 and the rotation direction switching gear 500, 2 plate 800,

A main gear shaft bearing 414 fixed to the first plate 700 and coupled to the main gear shaft 413 and a second gear shaft 414 fixed to the main housing 600 and coupled to the first gear shaft 210, A second gear shaft bearing 231 fixed to the second plate 800 and coupled with the shaft of the second gear 230 and a second gear shaft bearing 233 fixed to the main housing 600, A third gear shaft bearing 311 coupled to the second plate 800 and a fourth gear shaft bearing 331 fixed to the second plate 800 and coupled with the shaft of the fourth gear 330; And a rotation direction change gear shaft bearing 510 fixed to the second plate 800 and coupled with the shaft of the rotation direction change gear 500. The support shaft 510 supports the axial load of each gear, The present invention provides an auxiliary steering apparatus which is constituted by combining elements of an embodiment of an automotive auxiliary steering apparatus 1 equipped with a dual axis power transmission apparatus,

In addition, the automotive auxiliary steering system 1 equipped with the biaxial power transmission apparatus of the present invention replaces the conventional MDPS, and an electronic system (ECU) system applied to a conventional automobile can be used as it is.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. Accordingly, the present invention may be embodied in many other forms without departing from the spirit or essential characteristics. Accordingly, the embodiments of the present invention are to be considered in all respects as illustrative and not restrictive.

The steering apparatus is a device for changing the traveling direction of the vehicle.

In this steering system, an auxiliary steering device (MDPS, Motor Driven Power Steering) for transmitting power to assist the driver's power is added.

However, the conventional MDPS (Motor Driven Power Steering) causes a sense of incompatibility with the automobile and a driver to feel doubts and anxiety about safety of the automobile.

Therefore, the automotive auxiliary steering apparatus equipped with the two-shaft power transmitting apparatus according to the present invention not only has excellent safety, but also allows the driver to feel the steering feel of the natural steering wheel, And to contribute to the promotion of various automobile industries such as manufacturing of automobile parts and automobile manufacturing industry.

1: Automotive auxiliary steering device equipped with two-shaft power transmission device
100: handle shaft gear 110: handle shaft
200: first power transmitting portion 210: first gear
211: first gear shaft bearing 220: first power transmission device
230: second gear 231: second gear shaft bearing
300: second power transmitting portion 310: third gear
311: Third gear shaft bearing 320: Second power transmission device
330: fourth gear 331: fourth gear shaft bearing
400: Power generating unit 410: Power generating device
411: Driving motor 412: Reduction gear
413: main gear 414: main gear shaft bearing
500: rotation direction switching gear 510: rotation direction switching gear shaft bearing
600: main housing 700: first plate
710: Through hole 800: Second plate
H: steering wheel S: wheel axle

Claims (7)

In an automotive auxiliary steering device (1) equipped with a two-shaft power transmission device,
A handle shaft gear 100 formed on a handle shaft 110 coupled with a steering wheel H and a wheel shaft S;
A first power transmission part 200 composed of a first gear 210, a first power transmission device 220, and a second gear 230 which are engaged with one side of the handle shaft gear 100;
A second power transmission device 320 and a fourth gear 330 which are meshed with the other side of the handle shaft gear 100 in the same manner as the first power transmission portion 200, A transfer unit 300; And
The power generating unit 400 includes the driving motor 411 generating the power of the first and second power transmission units 200 and 300, the power generator 410 including the reducer 412 and the main gear 413, ; ≪ / RTI >
The first gear 210 meshes with one side of the main gear 413 and is provided at a lower portion of the first gear 210 with the first power transmission device 220 and the first power transmission device 220 in the same axial direction as the first gear 210, The second gear 230 is engaged with the lower portion of the handle shaft gear 100 so that the second gear 230 is engaged with one side of the handle shaft gear 100,
The third gear 310 meshes with the other side of the main gear 413 in the same manner as the first gear 210 and the second gear 310 is coupled to the lower side of the third gear 310 in the same axial direction as the third gear 310 The fourth gear 330 is coupled to the lower portion of the apparatus 320 and the second power transmission apparatus 320 so that the fourth gear 330 is coupled to the other side of the handle shaft gear 100 in the same manner as the second gear 230 Lt; / RTI >
A rotation direction switching gear 500 is disposed between the second gear 230 and the handle shaft gear 100 or between the fourth gear 330 and the handle shaft gear 100 to switch the rotation direction of the gear in the opposite direction, ; ≪ / RTI >
The rotation direction switching gear 500 is configured to be the same as the gear ratio of the handle shaft gear 100,
A main housing 600 configured to rotate the first and third gears 210 and 310 with a part of the power generating unit 400 and an upper portion of the shafts of the first and third gears 210 and 310 fixed;
A through hole 710 through which the lower portions of the shafts of the first and third gears 210 and 310 are inserted is formed and the lower portion of the shaft of the main gear 413 is fixed to the upper surface. A first plate 700 fixed to the first and second power transmission devices 220 and 320 and configured to rotate the main gear 413 and the first and third gears 210 and 310, respectively; And
The second and fourth gears 230 and 330 and the rotation direction switching gear 500 are fixed and the second and fourth gears 230 and 330 and the rotation direction switching gear 500 are rotated, Plate 800;
A main gear shaft bearing 414 fixed to the first plate 700 and engaged with the main gear 413;
A first gear shaft bearing (211) fixed to the main housing (600) and engaged with the shaft of the first gear (210);
A second gear shaft bearing (231) fixed to the second plate (800) and engaged with the shaft of the second gear (230);
A third gear shaft bearing (311) fixed to the main housing (600) and engaging with a third gear (310) shaft;
A fourth gear shaft bearing 331 fixed to the second plate 800 and engaged with the shaft of the fourth gear 330; And
And a rotation direction change gear shaft bearing 510 fixed to the second plate 800 and coupled to the shaft of the rotation direction change gear 500. The power generating device 500 is configured to support an axial load of each gear, The first and third gears 210 and 310 engaged with both sides of the main gear 413 are rotated while the first and third gears 210 and 310 are rotated by the steering wheel H the second and fourth gears 230 and 330 are rotated through the first and second power transmission devices 220 and 320 which are operated by signals sensed by sensors connected to the steering wheel, 230, 330), thereby stabilizing the electronic system in the automobile by assisting the steering of the driver, thereby enhancing the safety of the automobile. The automotive auxiliary steering system Device. delete The method according to claim 1,
The power generating device 410 includes:
Wherein the first and second power transmission parts (200, 300) can be provided with a plurality of power sources for supplying the power to the first and second power transmission parts (200, 300) An automotive auxiliary steering device equipped with a transmission device. delete delete The method according to claim 1,
The first and second power transmission devices 220 and 320 may be a combination of gears or a disc type, and may be an open-close type electromagnetic clutch driven by input of an electronic signal. Wherein the power transmission mechanism is configured to transmit power to the vehicle. delete
KR1020150168375A 2015-11-30 2015-11-30 The motor driven power steering made with both axis KR101656864B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020150168375A KR101656864B1 (en) 2015-11-30 2015-11-30 The motor driven power steering made with both axis
PCT/KR2015/013113 WO2017094934A1 (en) 2015-11-30 2015-12-03 Vehicle power steering system having double shaft power transmission apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150168375A KR101656864B1 (en) 2015-11-30 2015-11-30 The motor driven power steering made with both axis

Publications (1)

Publication Number Publication Date
KR101656864B1 true KR101656864B1 (en) 2016-09-13

Family

ID=56946658

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150168375A KR101656864B1 (en) 2015-11-30 2015-11-30 The motor driven power steering made with both axis

Country Status (2)

Country Link
KR (1) KR101656864B1 (en)
WO (1) WO2017094934A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09188266A (en) * 1995-11-30 1997-07-22 Trw Inc Steering device
KR20020045412A (en) * 2000-12-11 2002-06-19 밍 루 Electronic power steering system by using electromagnetic clutch
KR100854472B1 (en) 2000-05-10 2008-08-27 가부시키가이샤 제이텍트 Electric power steering apparatus
KR101100671B1 (en) 2008-10-14 2012-01-03 주식회사 스페이스솔루션 Electric power steering apparatus for vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100783748B1 (en) * 2004-04-28 2007-12-07 주식회사 만도 Driving apparatus of single motor driven steering column
JP2006347208A (en) * 2005-06-13 2006-12-28 Jtekt Corp Steering device for vehicle
KR20070083040A (en) * 2006-02-20 2007-08-23 현대자동차주식회사 Power steering device of an automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09188266A (en) * 1995-11-30 1997-07-22 Trw Inc Steering device
KR100854472B1 (en) 2000-05-10 2008-08-27 가부시키가이샤 제이텍트 Electric power steering apparatus
KR20020045412A (en) * 2000-12-11 2002-06-19 밍 루 Electronic power steering system by using electromagnetic clutch
KR101100671B1 (en) 2008-10-14 2012-01-03 주식회사 스페이스솔루션 Electric power steering apparatus for vehicle

Also Published As

Publication number Publication date
WO2017094934A1 (en) 2017-06-08

Similar Documents

Publication Publication Date Title
US20060278466A1 (en) Electric power steering systems
US20130199865A1 (en) Hybrid power steering system
KR102057594B1 (en) Tractor front axle with motor drive power steering system
JP2010188930A (en) Steering input device and steering control device
JP5899166B2 (en) Actuator used for vehicle steering system
KR100883554B1 (en) Electric Power Steering System having Compensational Means of Free Apartness of Worm Shaft
JPS6137581A (en) Motor-driven power steering gear
CN107813865B (en) Steering system and vehicle
JP4228899B2 (en) Steering force transmission device for vehicle
US20220258791A1 (en) Automobile steering apparatus
KR101656864B1 (en) The motor driven power steering made with both axis
KR101684632B1 (en) The motor driven power steering made with double acting clutch
KR101860868B1 (en) Parking and disconnecting apparatus for vehicle
KR20060101622A (en) Free apatrness absorp structure of electrical power steering system
CN113811480B (en) Vehicle steering apparatus
US9616916B2 (en) Electric power steering device
KR20110062014A (en) Power transmission device for motor driven power steering system
JP2004322808A (en) Steer-by-wire type steering gear
JP2007145070A (en) Drive wheel structure for vehicle
KR20130013282A (en) Device combined motor driven power steering with compressor
KR20130074074A (en) Electric power steering apparatus for vehicle
JP2009132305A (en) Steering device
JP2007083848A (en) Steering system for vehicle
KR101854108B1 (en) Steering apparatus for vehicles
JP2537313Y2 (en) Rear wheel steering system for four-wheel steering vehicles

Legal Events

Date Code Title Description
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20190904

Year of fee payment: 4