KR20110037021A - Non electric variable stiffness typed suspension bush device in vehicle - Google Patents

Non electric variable stiffness typed suspension bush device in vehicle Download PDF

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Publication number
KR20110037021A
KR20110037021A KR1020090094256A KR20090094256A KR20110037021A KR 20110037021 A KR20110037021 A KR 20110037021A KR 1020090094256 A KR1020090094256 A KR 1020090094256A KR 20090094256 A KR20090094256 A KR 20090094256A KR 20110037021 A KR20110037021 A KR 20110037021A
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KR
South Korea
Prior art keywords
suspension
vehicle
space
fluid
variable stiffness
Prior art date
Application number
KR1020090094256A
Other languages
Korean (ko)
Inventor
박종우
Original Assignee
현대모비스 주식회사
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 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020090094256A priority Critical patent/KR20110037021A/en
Publication of KR20110037021A publication Critical patent/KR20110037021A/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
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/04—Buffer means for limiting movement of arms
    • 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
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings
    • 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
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings
    • B60G2204/4106—Elastokinematic mounts
    • B60G2204/41062—Elastokinematic mounts hydromounts; interconnected mounts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/012—Hollow or tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B60G2206/821—Joining by gluing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/22—Braking, stopping

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

Abstract

PURPOSE: A non-electric variable stiffness type suspension bush device for a vehicle is provided to make a driver feel comfortable by using the braking pressure of a vehicle. CONSTITUTION: A non-electric variable stiffness type suspension bush device for a vehicle comprises a suspension bush(1), first and second inlet holes(8,9), and a hydraulic supplying line(10). The suspension bush is composed of an outer pipe(2), an inner pipe(6), and an elastic body(3). The elastic body forms first and second fluid sealing spaces(4,5). The first and second inlet holes are connected to the first and second fluid sealing spaces through first and second horizontal connection holes(8a,9a). The hydraulic supplying line charges the first and second fluid sealing spaces with braking pressure occurred in a master cylinder(B).

Description

Non electric variable stiffness typed suspension bush device in vehicle}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension suspension for a vehicle, and more particularly to a suspension suspension apparatus for a non-magnetic variable rigidity type vehicle using braking hydraulic pressure.

In general, suspension bushes deform the rubber shape in various forms to tune the front, rear, top, bottom and torsional stiffness to meet the performance target of the vehicle.

The characteristics of the suspension as described above is determined according to the void shape of the rubber and the hardness of the rubber, so that the design in consideration of this when tuning.

However, such a design has aspects that make it impossible to implement variable characteristics when the rubber hardness and the void shape of the rubber are determined, and thus the front, rear, top, and bottom characteristics of the suspension bush are determined.

Since the variable characteristics of the suspension suspension implement various advantages in the application of the actual vehicle, the suspension suspension having the variable characteristic is generally applied to the actual vehicle, but some side effects are generated by implementing the variable characteristic electronically.

For example, the electronic variable characteristic implementation suspension suspense not only requires excessive time and effort for tuning in the actual vehicle application due to the electronic control, but also has to accept the failure (Failure) according to the electronic control.

Accordingly, the present invention has been invented in view of the above, and by mechanically implementing variable characteristics using a liquid hydraulic pressure such as oil, to solve the excessive tuning time and effort according to the implementation through the electronic control, according to the electronic control It is an object of the present invention to provide a suspension bush that solves the failure phenomena.

In addition, an object of the present invention is to provide a suspension bush that can greatly improve the riding comfort by controlling the braking and starting stiffness of the vehicle by using the hydraulic pressure to implement the hydraulic variable characteristics.

In order to achieve the above object, the present invention provides a suspension cylinder (1) having an elastic body (3) in which a suspension bushing device has formed at least one fluid sealing space therein. In order to receive the braking hydraulic pressure of the oil generated in, characterized in that it comprises a hydraulic pressure providing line 10 is drawn out from the master cylinder (B) connected.

The fluid encapsulation space is formed of a pair of first and second fluid encapsulation spaces 4 and 5 having different diameter sizes and forming a symmetrical structure so as to vary the amount of oil inflow per unit time, and the first fluid having a large diameter. The enclosed space is located towards the front of the vehicle.

The suspension bush 1 includes an outer pipe 2 forming an outer appearance, an inner pipe 6 forming an empty space with respect to the outer pipe 2, and vulcanized in an empty space inside the outer pipe 2. It is composed of a rubber-like elastic body (3) bonded to the inner pipe (6) and having a pair of first and second fluid sealing spaces (4, 5) therein, and the hydraulic pressure supply line (10) is a master cylinder. A first and second branch lines 12a connected to the suspension bush 1 to supply oil to the main line 11 drawn out from (B) and the first and second fluid encapsulation spaces 4 and 5, respectively; 12b).

The first and second fluid encapsulation spaces 4 and 5 form a closed space inside the elastic body 3, and the first and second horizontal connection holes 8a and 9a which are circumferentially drilled in the inner pipe 6. Perforated in the axial direction of the inner pipe (6), and communicates with the first and second inlet holes (8, 9) connected to the first and second branch lines (12a, 12b).

The first and second fluid encapsulation spaces 4 and 5 have the same volume, but the diameters of the first horizontal connection hole 8a and the first inflow hole 8 are the same as that of the second horizontal connection hole 9a. It has a larger diameter than the diameter of the second inflow hole (9).

The first fluid sealing space 4 is installed to face the front of the vehicle.

The diameters of the main line 11 and the first and second branch lines 12a and 12b have the same size.

According to the present invention, since the variable characteristics are mechanically implemented using liquid hydraulic pressure such as oil, all inconveniences caused by excessive tuning work generated when applying the electronic control are eliminated, and even without the failure due to the electronic control. Effect.

In addition, the present invention also uses the braking hydraulic pressure of the vehicle has the effect of maintaining a comfortable ride even at the time of braking and departure to reduce the ride comfort.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the exemplary embodiments of the present invention may be embodied in various different forms, one of ordinary skill in the art to which the present invention pertains may be described herein. It is not limited to the embodiment.

Figure 1 shows a block diagram of a non-magnetic variable rigid type vehicle suspension device according to the present invention, the present invention is suspended suspension (1) having an elastic body 3 formed at least one fluid sealing space therein (1) ) And a suspension bush (1) for introducing the braking hydraulic pressure of the master cylinder (B) from the hydraulic pressure supply line (10) connected to the master cylinder (B).

The suspension bush is installed on the suspension side, thereby providing a more comfortable ride with front, rear, up, down and torsional stiffness.

The suspension bush 1 according to the present embodiment is an outer pipe 2 forming an appearance, an inner pipe 6 forming an empty space with respect to the outer pipe 2, and vulcanized in an empty space therein to It is composed of a rubber-like elastic body 3 bonded to the outer pipe 2 and the inner pipe 6 and having at least one fluid sealing space therein.

2 shows a cross-sectional structure of the elastic body 3 according to the present embodiment, and as shown in the elastic body 3, the pair of first and second fluid encapsulation spaces 4, 5) form.

2 shows that the first and second fluid encapsulation spaces 4 and 5 form a closed space inside the elastic body 3.

As shown, the first and second fluid encapsulation spaces 4 and 5 have the same volume.

2 shows the first and second inflow holes 8 and 9 for supplying hydraulic pressure to the first and second fluid encapsulation spaces 4 and 5.

As illustrated, the first and second inflow holes 8 and 9 are axially drilled using the inner pipe 6 to form the first and second fluid encapsulations that form a closed space inside the elastic body 3. It is located towards the space 4, 5.

In the present exemplary embodiment, the diameter D of the first inflow hole 8 is larger than the diameter d of the second inflow hole 9 so that the diameter of the first inflow hole 8 is increased. According to the size of the diameter of 9, it is possible to improve the responsiveness at the start and braking of the vehicle due to the difference in the amount of oil flowing into the first and second fluid filling spaces 4 and 5 per unit time.

The first inflow hole 8 is the front side of the vehicle, and the second inflow hole 9 is installed to have the rear side of the vehicle.

2 shows the first and second horizontal connection holes 8a and 9a for communicating the first and second inflow holes 8 and 9 and the first and second fluid sealing spaces 4 and 5.

As shown, the first and second horizontal connection holes 8a and 9a are circumferentially drilled, so that the first and second inflow holes 8 and 9 and the first and second fluid encapsulation spaces axially drilled ( 4 and 5 are communicated with each other to fill the supplied oil into the first and second fluid encapsulation spaces 4 and 5.

In the present embodiment, the first horizontal connection hole 8a is the same size as the diameter D of the first inflow hole 8, and the second horizontal connection hole 9a is the diameter of the second inflow hole 9. By the same size as (d), a difference in the amount of oil flowing into the first and second fluid encapsulation spaces 4 and 5 per unit time is formed.

3 is a configuration diagram for supplying a braking hydraulic pressure by using the hydraulic pressure providing line 10 toward the suspension according to the present invention.

As shown, the hydraulic pressure providing line 10 is drawn from the master cylinder (B) for generating hydraulic pressure by the operation of the pedal (A) to supply to the wheel cylinder (C) is connected to the suspension bush (1).

The hydraulic pressure providing line 10 according to the present embodiment is branched from the main line 11 drawn out from the master cylinder B, the suspension bush 1 side, and the first and second inflow holes 8 of the suspension bush 1. And the first and second branch lines 12a and 12b respectively connected to the points 9 and 9).

The diameters of the main line 11 and the first and second branch lines 12a and 12b have the same size.

As described above, the suspension display device according to the present embodiment includes a suspension bush 1 having an elastic body 3 having first and second fluid encapsulation spaces 4 and 5 therein, and the first and second fluid encapsulation spaces 4. And the first and second inflow holes 8 and 9 communicated with the first and second horizontal connection holes 8a and 9a, and the braking hydraulic pressure generated in the master cylinder B is applied to the first and second fluids. Consists of a hydraulic pressure supply line 10 to fill the sealing space (4, 5).

3 shows an actual vehicle application configuration of the suspension bushing apparatus according to the present embodiment.

As shown, the suspension bush (1) is connected to the hydraulic pressure supply line 10 drawn from the master cylinder (B), so as to receive the braking hydraulic pressure of the oil generated in the master cylinder (B) by the pedal (A) operation In this case, the suspension bush (1) is the first inlet hole (8) having a larger diameter of the first and second inlet holes (8, 9) communicated to the first and second fluid sealing space (4, 5) Carefully install so that it faces the front of the vehicle.

As described above, the master cylinder B and the suspension bush 1 are connected to each other to receive hydraulic pressure, and have a pair of first and second fluid sealing spaces 4 and 5 for varying the degree of filling. Not only does it improve ride comfort at the start, but the oil inlet difference allows for optimal tuning of the bushing characteristics.

In the present embodiment, when the vehicle braking is performed, the hydraulic pressure of the master cylinder (B) side is provided toward the suspension bush (1) through the hydraulic pressure providing line (10), wherein the suspension bush (1) is in the hydraulic pressure providing line (10) Oil is simultaneously supplied through the branched first and second branch lines 12a and 12b.

However, the first fluid encapsulation space 4 and the second fluid encapsulation space 5 formed in the suspension bush 1 can compensate for the forward tilt due to inertia during braking by varying the oil inflow amount per unit time.

That is, the diameter of the first horizontal connection hole 8a and the first inlet hole 8 which extends to the first fluid sealing space 4 toward the front of the vehicle is the second horizontal connection which is connected to the second fluid sealing space 5. By forming larger than the hole (9a) and the second inlet hole (9), the amount of oil inflow per unit time to the first fluid sealing space (4) is increased.

As such, when the oil filling amount is further increased in the vehicle front portion of the suspension bush 1, the front stiffness is increased compared to the rear portion, thereby compensating for the forward pull due to inertia during braking.

This action can improve ride comfort by easily absorbing shock to the harness (HARSHNESS) when driving like the suspension bush 1 of the present embodiment, but can compensate for bad responsiveness when starting and braking the vehicle due to weak forward and backward stiffness. do.

Subsequently, when the vehicle is completely braked, the first and second fluid encapsulation spaces 4 and 5 of the suspension bush 1 form an oil-filled state.

In this embodiment, when the foot is released from the brake pedal A for acceleration after braking, the oil filled in the first and second fluid sealing spaces 4 and 5 of the suspension bush 1 is again master cylinder B. You will exit.

At the time of departure, the amount of oil discharged from the first fluid containment space 4 formed in the suspension bushing 1 per unit time is greater than the amount of oil discharged from the second fluid containment space 5, as opposed to braking. Compared to the front direction of 1), the stiffness in the rear direction is increased to compensate for the rear tilt caused by inertia during acceleration as in braking.

As described above, the diameter of the first horizontal connection hole 8a and the first inlet hole 8 connected to the first fluid encapsulation space 4 of the suspension bush 1 is the second fluid encapsulation space 5. It is due to larger than the diameter of the second horizontal connection hole (9a) and the second inlet hole (9) connected to.

As described above, the suspension display device according to the present embodiment includes a suspension bush 1 having an elastic body 3 having first and second fluid encapsulation spaces 4 and 5 therein, and the first and second fluid encapsulation spaces 4. And the first and second inflow holes 8 and 9 communicated with the first and second horizontal connection holes 8a and 9a, and the braking hydraulic pressure generated in the master cylinder B is applied to the first and second fluids. By constructing the hydraulic supply line 10 to fill the enclosed space (4, 5), by implementing a mechanical variable characteristics using liquid hydraulic pressure to simplify the tuning work compared to the electronic control, and to take the risk of failure (Failure) There is no need.

Accordingly, the suspension bush 1 according to the present embodiment can realize various bushing characteristics according to the shape of the first and second fluid encapsulation spaces 4 and 5, which are voids, and thus, the width of design freedom is very high. You can widen it.

1 is a block diagram of a suspension device for a non-electronic variable stiffness type vehicle according to the present invention

2 is a partial cross-sectional view of FIG.

3 is a configuration diagram in which the suspension suspension according to the present invention can vary the rigidity non-magnetically using the braking hydraulic pressure

    <Description of the symbols for the main parts of the drawings>

1: suspension suspension 2: outer pipe

3: elastic body 4, 5: first and second fluid sealing space

6: inner pipe 8,9: 1st and 2nd inlet hole

8a, 9a: First and second horizontal connection holes

10: Hydraulic supply line 11: Main line

12a, 12b: First and second branch lines

A: Pedal B: Master Cylinder

C: Wheel Cylinder

Claims (8)

Suspended bushes having an elastic body having at least one fluid sealing space therein include a hydraulic pressure supply line drawn out from the master cylinder to receive braking hydraulic pressure of oil generated in the master cylinder to the fluid sealing space. Non-magnetic variable stiffness suspension system for vehicle type, characterized in that. The non-magnetic variable stiffness of claim 1, wherein the fluid encapsulation space is formed of a pair of first and second fluid encapsulation spaces having different diameter sizes and forming a symmetrical structure so as to vary an oil inflow amount per unit time. Suspension device for vehicle type. 3. The suspension apparatus of claim 2, wherein the fluid encapsulation space has a large diameter of the first fluid encapsulation space located toward the front of the vehicle. The method according to claim 1, wherein the suspension bush is an outer pipe forming an appearance, an inner pipe forming an empty space with respect to the outer pipe, and vaccinated in the inner empty space and bonded to the outer pipe and the inner pipe, a pair inside Made of an elastic body made of rubber formed with a first and second fluid encapsulation space therein, The hydraulic supply line is composed of a non-electronic variable stiffness, characterized in that the main line drawn from the master cylinder and the first and second branch line connected to the suspension bushing side to supply oil to the first and second fluid sealing space, respectively. Suspension device for vehicle type. The method of claim 4, wherein the first and second fluid sealing spaces form a closed space inside the elastic body, and are drilled in the axial direction of the inner pipe using the first and second horizontal connecting holes drilled in the circumferential direction of the inner pipe. And a first and second inflow hole connected to the first and second branch lines. The diameter of the first horizontal connection hole and the first inlet hole is larger than the diameter of the second horizontal connection hole and the second inlet hole. Non-magnetic variable rigid type vehicle suspension device characterized in that it has a. The suspension device according to claim 6, wherein the first fluid encapsulation space faces the front side of the vehicle. The suspension suspension apparatus for a non-electronic variable stiffness type vehicle according to claim 4, wherein the main lines and the first and second branch lines have the same diameter.
KR1020090094256A 2009-10-05 2009-10-05 Non electric variable stiffness typed suspension bush device in vehicle KR20110037021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090094256A KR20110037021A (en) 2009-10-05 2009-10-05 Non electric variable stiffness typed suspension bush device in vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090094256A KR20110037021A (en) 2009-10-05 2009-10-05 Non electric variable stiffness typed suspension bush device in vehicle

Publications (1)

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KR20110037021A true KR20110037021A (en) 2011-04-13

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KR1020090094256A KR20110037021A (en) 2009-10-05 2009-10-05 Non electric variable stiffness typed suspension bush device in vehicle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD983846S1 (en) 2021-05-12 2023-04-18 Samsung Electronics Co., Ltd. Refrigerator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD983846S1 (en) 2021-05-12 2023-04-18 Samsung Electronics Co., Ltd. Refrigerator

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