KR101338440B1 - Vehicle height sensor assembly - Google Patents

Vehicle height sensor assembly Download PDF

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Publication number
KR101338440B1
KR101338440B1 KR1020110125394A KR20110125394A KR101338440B1 KR 101338440 B1 KR101338440 B1 KR 101338440B1 KR 1020110125394 A KR1020110125394 A KR 1020110125394A KR 20110125394 A KR20110125394 A KR 20110125394A KR 101338440 B1 KR101338440 B1 KR 101338440B1
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KR
South Korea
Prior art keywords
suspension arm
ball bush
pillow ball
measuring device
sensor assembly
Prior art date
Application number
KR1020110125394A
Other languages
Korean (ko)
Other versions
KR20130059203A (en
Inventor
이영춘
권태성
이성근
김현우
김철순
권익진
Original Assignee
주식회사 일진
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 주식회사 일진 filed Critical 주식회사 일진
Priority to KR1020110125394A priority Critical patent/KR101338440B1/en
Publication of KR20130059203A publication Critical patent/KR20130059203A/en
Application granted granted Critical
Publication of KR101338440B1 publication Critical patent/KR101338440B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/11—Mounting of sensors thereon
    • B60G2204/116—Sensors coupled to the suspension arm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/11—Mounting of sensors thereon
    • B60G2204/116—Sensors coupled to the suspension arm
    • B60G2204/1162—Sensors coupled to the suspension arm directly mounted on the suspension arm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/25—Stroke; Height; Displacement
    • B60G2400/252—Stroke; Height; Displacement vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60G2401/17—Magnetic/Electromagnetic

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The present invention provides a measuring device for measuring an amount of rotation of a pillow ball bush mounted on the vehicle body and a connecting portion of the suspension arm and the suspension arm connected to the vehicle body of the vehicle and the pillow ball bush rotated by the vertical movement of the suspension arm. It includes, the measuring device is coupled to the connecting portion of the suspension arm to cover the pillow ball bush and to support the rotation axis of the garage sensor assembly characterized in that the present invention can reduce the weight and cost It is effective to measure the garage accurately and safely.

Description

Garage Sensor Assembly {VEHICLE HEIGHT SENSOR ASSEMBLY}

The present invention relates to a garage sensor assembly, and more particularly, to a garage sensor assembly for detecting the height of the vehicle more accurately by improving the garage sensor for detecting the garage through the height of the suspension device.

In general, the suspension of the vehicle is a device that absorbs vibration or shock generated by contact with the road surface while driving, and comprises a plurality of link elements, elastic means and shock absorbers.

Recently, there is a situation in which a height sensor is added to actively control such a suspension device appropriately for a driving environment.

The garage sensor is a sensor that detects the height of the ground and the vehicle body that varies depending on the degree of load on the vehicle.

In the case of the conventional garage sensor is connected to the suspension device such as a suspension arm of the vehicle (Suspension Arm) is connected to the mounting device such as a separate bracket (Bracket).

Therefore, in the case of the conventional garage sensor, the layout is complicated, and the cost increases due to the increase of parts, and the weight increases.

In addition, in the case of the connecting device such as the bracket (Bracket), there is a high risk of being damaged by external exposure when the vehicle body floats in the air, such as when the vehicle is towed.

In addition, in the case of the conventional garage sensor as described above, there is a problem that it is difficult to calculate the exact garage because the garage calculated in proportion to the distance between the connection device and the garage sensor is sensitively changed.

The present invention has been made to solve the above-described problem, and can reduce the weight and cost of the vehicle by reducing unnecessary parts, reduce the risk of damage of the garage sensor, and the garage sensor assembly that can calculate the garage accurately It aims to provide.

In an embodiment of the present invention as a means for solving the above problems provides a garage sensor assembly. In some embodiments, the garage sensor assembly includes a suspension arm connected to the vehicle body; A pillow ball bush mounted on the vehicle body and a connection portion of the suspension arm; And a measuring device for measuring an amount of rotation of the pillow ball bush that rotates by vertical movement of the suspension arm, wherein the measuring device is coupled to the connection portion of the suspension arm to cover the pillow ball bush. It may be characterized in that for supporting the rotating shaft.

The pillow ball bush may include a hollow inner pipe having a part of an outer circumference formed by a spherical portion, a first bearing sliding in contact with the outer circumference of the spherical portion, a cover portion disposed on the first bearing outer circumference, and an outer circumference of the cover portion. It may be disposed and include an outer pipe formed of an elastic material.

The inner pipe and the cover part may be formed to extend by a predetermined length, and the extended part of the cover part may be integrally formed with a measurement unit provided to measure the amount of rotation in the measuring device.

The outer circumferential surface of the first bearing and the cover portion may be formed in a spherical surface reflecting the shape of the spherical portion located therein.

It may be characterized in that it further comprises a second bearing mounted between the measurement unit and the inner pipe to slide.

It may be characterized in that it further comprises first and second ring seals installed between both sides of the first bearing and the cover portion and the inner pipe to prevent the ingress of foreign matter.

The cover part may be formed of a metal material.

The cover portion is equipped with a plurality of magnets (Magnet) along the circumference of the cover portion on one side, the measuring device detects the magnetic change caused by the magnet (Sensing) characterized in that for measuring the rotation amount of the pillow ball bush You can do

According to the garage sensor assembly according to the present invention, since a separate bracket-like part is not required for installing the garage sensor, the weight of the vehicle is reduced by the number of parts, and the manufacturing cost can be reduced.

In addition, since the measuring device is directly attached to the suspension arm rotation shaft portion, there is an effect of reducing the risk of damage to the measuring device even when the vehicle is towed or the vehicle body is lifted.

In addition, in the case of the present invention, since the measuring device is directly attached to the suspension arm to measure the amount of rotation thereof and calculate the height of the vehicle, the accuracy of the garage sensing is improved.

1 is a perspective view of a garage sensor assembly according to an embodiment of the present invention.
2 is a cross-sectional view of a pillow ball bush of the garage sensor assembly according to an embodiment of the present invention.
3 is a view showing a garage sensor assembly according to another embodiment of the present invention.

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

1 is a perspective view of a garage sensor assembly 10 according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the pillow ball bush 200 used in the garage sensor assembly 10 according to an embodiment of the present invention.

1 or 2, the garage sensor assembly 10 according to the embodiment of the present invention is a suspension ball 100 is connected to the vehicle body of the vehicle, and the pillow ball bush is installed on one end of the suspension arm (100) And a measuring device 300 for measuring an amount of rotation of the pillow ball bush 200 that rotates by vertical movement of the suspension arm 100.

The suspension arm 100 is an element constituting the suspension of the vehicle and is rotatably connected to the vehicle body 20 in a predetermined range, as shown in FIG. 1, according to the degree of load mounted on the vehicle. When the height of the vehicle body 20 changes, it moves up and down with the vehicle body.

The pillow ball bush 200 is mounted on the rotating shaft, and is excellent in reducing friction in the rotating direction while reducing a change in the force in the axial direction.

According to an embodiment of the present invention, the pillow ball bush 200 is mounted on the connection portion between the vehicle body and the suspension arm 100.

In one or more embodiments, a cylindrical space (hole) may be formed at one end of the suspension arm 100 to mount the pillow ball bush 200, and penetrates the pillow ball bush 200 therein. It can be inserted and fixed by mounting the rotary shaft with an outer cover or the like. Since the suspension arm 100 is connected to the vehicle body in a state in which the pillow ball bush 200 is mounted, rotational performance is improved.

In one or more embodiments, the pillow ball bush 200 includes a hollow inner pipe 210 having a portion of an outer circumferential surface formed as a spherical portion 211 as shown in FIG. 2, and an outer circumference of the spherical portion 211. A first bearing 220 sliding in contact with the cover, a cover portion 230 disposed on an outer circumference of the first bearing 220, an outer pipe 240 disposed on an outer circumference of the cover portion 230, and the inner portion thereof. A second bearing 250 that slides between the pipes 210 and the first and second ring seals 260 installed on both sides of the first bearing 220 may be included.

The inner pipe 210 is provided at the innermost part to be a pillow ball, and as shown in FIG. 2, the inside of the inner pipe 210 is hollow. The inner pipe 210 is formed in a cylindrical shape as a whole, but a part of its outer circumferential surface protrudes into the spherical portion 211 along the circumference to serve as a pillow ball.

The first bearing 220 is disposed in close contact with the outer circumferential surface of the inner pipe 210 to guide and support the rotation of the inner pipe 210. Therefore, the inner circumferential surface of the first bearing 220 is formed in a shape corresponding to the outer circumferential surface of the spherical portion 211 of the inner pipe 210.

In addition, according to an embodiment of the present invention, the outer circumferential surface of the first bearing 220 is also formed in a spherical surface reflecting the shape of the spherical portion 211.

The first ring seal and the second ring seal are respectively coupled to both sides of the first bearing 220 to seal the first bearing 220 so that external foreign matter penetrates between the first bearing 220 and the inner pipe 210. To prevent them.

In one or more embodiments, as shown in FIG. 2, the parts contacting the first and second ring seals 260 and the inner pipe 210 or the cover part 230 may be formed of irregularities to closely contact each other. By doing so, the separation of the first and second ring seals 260 can be prevented and the durability in the rotational direction can be improved.

In addition, as shown in FIG. 2, a fixing member 262 for fixing the first and second ring seals 260 to the cover part 230 may be further included. Since the irregularities alone may not prevent the separation of the first ring seal or the second ring seal, the cover member 230 and the first and second ring seals may have a fixing member 262 having a 'b' shaped cross section. By interposing between the 260, it can be fixed reliably.

In another or multiple embodiments, the first and second ring seals 260 may further include a cover part 261 extending in the circumferential direction of the first and second ring seals 260. As shown in FIG. 2, the cover part 261 seals a gap between the inner pipe 210 and the first and second ring seals 260 to prevent foreign substances from entering.

The cover part 230 may be formed on an outer circumferential surface of the first bearing 220 to surround and support the first bearing 220 and be formed of a metal material such as steel.

In one or more embodiments, the outer circumferential surface of the cover portion 230 may reflect the shape of the spherical portion 211 of the inner pipe 210 positioned therein, and thus a portion corresponding thereto may also be formed as a spherical surface.

The outer pipe 240 may be formed of an elastic material such as rubber as a portion that is coupled to the outer circumferential surface of the cover part 230. By forming the outer pipe 240 made of an elastic material, it is possible to absorb vibration or shock of the vehicle.

In addition, according to an embodiment of the present invention, since the cover part 230 and the first bearing 220 are formed in a spherical shape, and the outer pipe 240 is formed of an elastic material, the pillow ball bush 200 has a rotating shaft. In the case of flowing in the yaw direction based on the reference, the flow can be absorbed within a predetermined range.

Meanwhile, according to the exemplary embodiment of the present invention, as shown in FIG. 2, the inner pipe 210 and the cover part 230 extend by a predetermined length d along the axial direction, and the cover part 230 In the extended portion of the measurement unit 300 to be provided to measure the amount of rotation in the measuring device 300 is integrally formed.

As shown in FIG. 2, the measurement unit 231 may protrude in the circumferential direction from the cover unit 230 to facilitate sensing of the measurement device 300.

In addition, as shown in FIG. 2, the second bearing 250 is mounted between the measurement unit 231 and the inner pipe 210 to smoothly rotate in the extended portion. In addition, the clip 270 may be installed at a side surface at which the second bearing 250 is inserted to prevent separation of the second bearing 250.

The measuring device 300 measures an amount of rotation of the pillow ball bush 200 that rotates by vertical movement of the suspension arm 100. According to an embodiment of the present invention, the measuring unit 231 The amount of rotation can be measured by sensing the rotation.

The vehicle calculates the height based on the rotation amount measured by the measuring device 300.

In one or more embodiments, the height of the vehicle may be calculated. The height of the vehicle according to the change in the rotation amount may be calculated in real time by the controller to calculate the height of the vehicle.

In another or multiple embodiments, the relationship between the rotation amount of the pillow ball bush 200 and the garage is calculated and stored in advance as map data, and when the rotation amount is measured by the measuring device 300, the controller corresponds to the value. The garage may be calculated in real time by searching the map data.

According to an embodiment of the present invention, the configuration of the measurement unit 231 and the measurement device 300 for calculating the rotation amount is not limited.

For example, in one or more embodiments, a plurality of slits are formed along the circumferential surface of the measuring unit 231, and the measuring device 300 is provided as a sensor capable of sensing the height of the slits. As the measuring unit 231 rotates, the number of slits passing through may be sensed to transmit the rotation amount as an electrical signal.

As another similar embodiment, a measuring device for forming a circumferential surface of the measurement unit 231 into a gear shape by applying a tone wheel method, and obtaining electromotive force through an electromagnetic induction action of a coil adjacent thereto ( It is also possible to calculate the height by determining the frequency by the number of revolutions and the number of teeth of the cogwheel 300.

In another one or more embodiments, the capacitor senses an angle change of the to-be-measured unit 231 to be rotated, and outputs a linear voltage value of the controller, and the output voltage value is transmitted to the ECU and used by the ECU. You can also calculate the garage.

In addition to the above-described method, it is possible to measure the amount of rotation of the unit under test 231 by installing a magnet in the unit under test 231 and using a magnetic field change.

To this end, the cover portion 230 is equipped with a plurality of magnets 232 along the circumference of the cover portion 230 on one side, the measuring device 300 by the magnet 232 (Magnet) The rotation amount of the pillow ball bush 200 may be measured by sensing a magnetic change. Figure 3 (a) is a view showing an embodiment of the present invention to which the magnet 232 is applied, Figure 3 (b) is a view showing a cross section taken along AA 'of Figure 3 (a). . As shown in FIG. 3, one side of the cover part 230 is formed to protrude radially at predetermined intervals so that its cross section is formed in a gear shape, and a magnet 232 is mounted at each protruding portion thereof. do. The measuring device 300 is installed in a non-contact manner apart from the magnet 232 by a predetermined distance. When the pillow ball bush 200 is rotated by the vertical movement of the suspension arm, the cover part 230 and the magnet 232 also rotate together. At this time, the measuring device 300 detects a change in the magnetic field by the rotating magnet 232 and measures the amount of rotation.

In addition, according to an embodiment of the present invention, the measuring device 300 is coupled to the connection portion of the suspension arm 100 as shown in Figure 1 to cover the pillow ball bush 200 and to support the axis of rotation do.

As shown in FIG. 1, since the measuring device 300 is directly attached to the side portion of one end that becomes the rotation axis of the suspension arm 100, the risk of damage of the measuring device 300 is reduced when the vehicle is towed or when the vehicle body is lifted. There is.

That is, since the measuring device 300 itself serves as a cover of the pillow ball bush 200 and fixes the rotation shaft of the pillow bush, a component such as a bracket is not required to install a garage sensor as in the prior art. Therefore, according to this embodiment of the present invention there is an advantage that can reduce the manufacturing cost and weight.

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.

10: height sensor assembly 20: body
200: pillow ball bush 300: measuring device
210: inner pipe 211: spherical portion
220: first bearing 230: cover part
231: measuring unit 232: magnet
240: outer pipe 250: second bearing
260: first and second ring seal 270: clip

Claims (8)

In the garage sensor assembly,
A suspension arm connected to a vehicle body of the vehicle;
A pillow ball bush mounted on the vehicle body and a connection portion of the suspension arm; And
And a measuring device for measuring an amount of rotation of the pillow ball bush that rotates by vertical movement of the suspension arm.
The measuring device is coupled to the connecting portion of the suspension arm to cover the pillow ball bush and to support its rotation axis,
The pillow ball bush may include a hollow inner pipe having a part of an outer circumference formed by a spherical portion, a first bearing sliding in contact with the outer circumference of the spherical portion, a cover portion disposed on the first bearing outer circumference, and an outer circumference of the cover portion. Is disposed and includes an outer pipe formed of an elastic material,
The inner pipe and the cover portion is formed to extend by a predetermined length,
Garage sensor assembly, characterized in that the extended portion of the cover unit is formed integrally with the measuring unit to provide to measure the amount of rotation in the measuring device. delete delete The method of claim 1,
The outer circumferential surface of the first bearing and the cover portion is formed in a spherical surface reflecting the shape of the spherical portion located therein. The method of claim 1, wherein
And a second bearing mounted between the unit to be measured and the inner pipe to slide. The method of claim 1,
Garage sensor assembly characterized in that it further comprises a first, a second ring seal is installed between both sides of the first bearing and the cover portion and the inner pipe to prevent foreign matter from penetrating. The method of claim 1,
Garage sensor assembly, characterized in that the cover portion is formed of a metal material. In the garage sensor assembly,
A suspension arm connected to a vehicle body of the vehicle;
A pillow ball bush mounted on the vehicle body and a connection portion of the suspension arm; And
And a measuring device for measuring an amount of rotation of the pillow ball bush that rotates by vertical movement of the suspension arm.
The measuring device is coupled to the connecting portion of the suspension arm to cover the pillow ball bush and to support its rotation axis,
The pillow ball bush may include a hollow inner pipe having a part of an outer circumference formed by a spherical portion, a first bearing sliding in contact with the outer circumference of the spherical portion, a cover portion disposed on the first bearing outer circumference, and an outer circumference of the cover portion. Is disposed and includes an outer pipe formed of an elastic material,
The cover portion is equipped with a plurality of magnets (Magnet) along the circumference of the cover portion on one side, the measuring device detects the magnetic change caused by the magnet (Sensing) characterized in that for measuring the rotation amount of the pillow ball bush Garage sensor assembly.
KR1020110125394A 2011-11-28 2011-11-28 Vehicle height sensor assembly KR101338440B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110125394A KR101338440B1 (en) 2011-11-28 2011-11-28 Vehicle height sensor assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110125394A KR101338440B1 (en) 2011-11-28 2011-11-28 Vehicle height sensor assembly

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KR20130059203A KR20130059203A (en) 2013-06-05
KR101338440B1 true KR101338440B1 (en) 2013-12-10

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KR1020110125394A KR101338440B1 (en) 2011-11-28 2011-11-28 Vehicle height sensor assembly

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102039396B1 (en) * 2018-10-31 2019-11-04 현대위아(주) Device bush for stabilizer of the vehicle
CN112776550A (en) * 2021-01-07 2021-05-11 东风柳州汽车有限公司 Thrust rod assembly, automotive suspension and automobile

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020040323A (en) * 2000-11-24 2002-05-30 이계안 Pillow ball bush for vehicle
KR20090110580A (en) * 2008-04-18 2009-10-22 현대모비스 주식회사 Bush typed height sensor assembly in vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020040323A (en) * 2000-11-24 2002-05-30 이계안 Pillow ball bush for vehicle
KR20090110580A (en) * 2008-04-18 2009-10-22 현대모비스 주식회사 Bush typed height sensor assembly in vehicle

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