KR102041918B1 - Geometric independent variable type double wishbone suspension system - Google Patents

Geometric independent variable type double wishbone suspension system Download PDF

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Publication number
KR102041918B1
KR102041918B1 KR1020140155658A KR20140155658A KR102041918B1 KR 102041918 B1 KR102041918 B1 KR 102041918B1 KR 1020140155658 A KR1020140155658 A KR 1020140155658A KR 20140155658 A KR20140155658 A KR 20140155658A KR 102041918 B1 KR102041918 B1 KR 102041918B1
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KR
South Korea
Prior art keywords
arm
ball joint
geometry
fastening
double wishbone
Prior art date
Application number
KR1020140155658A
Other languages
Korean (ko)
Other versions
KR20160056394A (en
Inventor
김보민
고대식
김종민
Original Assignee
현대자동차 주식회사
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Priority to KR1020140155658A priority Critical patent/KR102041918B1/en
Publication of KR20160056394A publication Critical patent/KR20160056394A/en
Application granted granted Critical
Publication of KR102041918B1 publication Critical patent/KR102041918B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B60G3/22—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid a rigid arm forming the axle housing
    • B60G3/225—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid a rigid arm forming the axle housing the arm being of the trailing wishbone type
    • 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
    • B60G7/005—Ball joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/02—Attaching arms to sprung part of vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/13—Independent suspensions with longitudinal arms only
    • B60G2200/132—Independent suspensions with longitudinal arms only with a single trailing arm
    • B60G2200/1322—Independent suspensions with longitudinal arms only with a single trailing arm with a wishbone or triangular arm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/464—Caster angle
    • 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
    • B60G2204/416—Ball or spherical joints
    • 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
    • B60G2204/43—Fittings, brackets or knuckles
    • 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
    • B60G2206/8207—Joining by screwing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/18—Steering knuckles; King pins
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints

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

Abstract

Geometry independent variable double wishbone suspension is disclosed. Geometry independent variable double wishbone suspension according to an embodiment of the present invention Upper knuckle end is formed on both upper sides, the lower knuckle body is formed on both lower sides; Upper and lower geometry variable means configured to have bolt fastening structures at both upper and lower coupling ends of the knuckle body to variably adjust a kingpin shaft and a cast angle; A tie rod connecting member configured to adjust a fastening position with a tie rod on a front lower side of the knuckle body; An upper arm coupled to the upper geometry variable means, the upper arm being capable of adjusting the ball joint fastening position with respect to the front and rear and transverse directions of the vehicle in a dual configuration in which an upper position is connected through a variable end; And a lower arm coupled to the lower geometry variable means, the lower arm being capable of adjusting the ball joint fastening position with respect to the front and rear and transverse directions of the vehicle in a dual configuration in which a lower position is connected through a variable stage.

Description

Geometry independent variable double wishbone suspension {GEOMETRIC INDEPENDENT VARIABLE TYPE DOUBLE WISHBONE SUSPENSION SYSTEM}

The present invention relates to a geometry independent variable double wishbone suspension, and more particularly, to a geometry independent variable double wishbone suspension capable of independently changing kingpin axis-related geometry factors.

In general, the double wishbone suspension exists between the body and the wheel, and connects the two rigid bodies with upper and lower arms to alleviate the shock and vibration received from the road surface while driving to improve ride comfort and driving stability. It is supported by a spring, a shock absorber and the like, and by using various arms and rods in other directions, by appropriately matching the high rigidity and flexibility, it performs a function to mechanically properly match the relative movement between the vehicle body and the wheel.

In particular, the double wishbone suspension applied to a high-performance vehicle or a racing vehicle has a geometry variable suspension component to implement handling characteristics suitable for the driver's preference and driving conditions, but has many limitations.

That is, the conventional geometry variable suspension system is mainly kinematically the structure to adjust only the initial toe (Toe) or camber (Camber) is mostly limited by the change in kinematic or compliance characteristics that can be obtained by moving the kingpin shaft. In particular, the double wishbone (in-wheel type) suspension, which is mainly applied to high-performance vehicles, has a fixed kingpin shaft.

In addition, the conventional geometry variable suspension system independently controls the geometry characteristics-related factors by adjusting the length of the suspension arm or by fastening hardware such as a cam bolt and a cam washer to a bracket having an eccentric hole in the body side mounting portion of the arm. Most of the time you can't.

For example, when adjusting the length of the rock flow to change the kingpin offset, it is accompanied by unwanted changes in the geometric characteristics according to the change in the length of the rock flow.

1, 2, and 3 are conceptual views illustrating a problem caused by the adjustment of the ground kingpin offset, caster, and cast trail through a common double wishbone suspension.

Referring to FIG. 1, in the conventional double wishbone suspension 100, the upper arm is reduced in order to reduce the moment around the kingpin shaft 101 by the front and rear force by reducing the ground kingpin offset K while maintaining other geometry characteristics. When the length of the 103 is reduced or the length of the lower arm 105 is increased, even the characteristics of the camber C are changed, and the swing angle of the ball joint 107 is disadvantageous.

Also, referring to FIG. 2, when the position of the ball joint 107 is moved to the tuning kit type upper arm 103 to increase only the caster angle CA, assembly is possible by rotating the axle. The length L and the caster trail CT may be increased to change most of the related geometry characteristics.

In addition, referring to FIG. 3, when both the upper arm 103 and the lower arm 105 are applied as a tuning kit type to increase the caster trail CT only, the king pin shaft 101 is moved in parallel to the front of the effective arm. There is a disadvantage in that the tow characteristic and the steering characteristic change according to the length L reduction.

Embodiment of the present invention to adjust the position of the center point of each ball joint mounting portion in the front and rear, inside and outside direction of the vehicle body through the upper and lower geometry variable means configured in the upper and lower parts of the knuckle body, the upper arm and the lower arm are each position Through the variable means to adjust the position of the ball joint in the front, rear, inside and outside direction to provide a geometry independent variable double wishbone suspension that can change the geometric characteristics parameters more independently than the conventional method.

In particular, it is intended to provide a geometry independent variable double wishbone suspension capable of setting moments around the kingpin shaft by front / rear force, lateral force, and effective arm length.

In one or more embodiments of the present invention, both sides of the upper knuckle body is formed on both sides, the lower both sides of the knuckle body is formed on both sides of the lower coupling end; Upper and lower geometry variable means configured to have bolt fastening structures at both upper and lower coupling ends of the knuckle body to variably adjust a kingpin shaft and a cast angle; A tie rod connecting member configured to adjust a fastening position with a tie rod on a front lower side of the knuckle body; An upper arm coupled to the upper geometry variable means, the upper arm being capable of adjusting the ball joint fastening position with respect to the front and rear and transverse directions of the vehicle in a dual configuration in which an upper position is connected through a variable end; And a lower arm coupled to the lower geometry variable means, and a lower arm capable of adjusting the ball joint fastening position with respect to the front, rear, and transverse directions of the vehicle in a dual configuration in which a lower position is connected through a variable stage. This suspension can be provided.

In addition, the upper geometry variable means is interposed between the upper coupling end of the both sides is bolted to be able to adjust the position in the front and rear direction of the vehicle body, the upper adjustment block is formed on each side of the vehicle width direction fastening portion is formed with a screw hole; And an upper ball joint mounter which is bolted to each of the fastening portions so as to be adjustable in a vehicle vehicle width direction with respect to the upper adjustment block, and to which a ball joint of the upper arm is fastened.

In addition, a plurality of spacers may be interposed between the upper coupling ends of both sides and both sides of the upper adjusting block to be bolted together.

In addition, a plurality of washers for maintaining a gap may be bolted together between the fastening portion of the upper adjustment block and the upper ball joint mounter.

The lower geometry variable means may form overlapping bolt holes in which a plurality of bolt holes overlap each other in the vehicle width direction at both lower coupling ends, and are disposed between the lower coupling ends of the lower arm to fasten the ball joint of the lower arm. A lower ball joint mounter; And integrally formed at both sides of the lower ball joint mounter so that the lower ball joint mounter can be positioned in the front and rear direction and the vehicle width direction of the lower ball joint mount in correspondence with each outer side of the lower coupling end in the vehicle body in the front and rear direction in each overlapping bolt hole. It may be composed of both ends of the bolt fastening.

In addition, a plurality of spacers may be interposed between the lower coupling ends of the both sides and the both coupling ends to be bolted together.

In addition, the tie rod connecting body may be bolted to be adjustable in the front and rear direction of the vehicle body via a plurality of spacers through a plurality of bolt holes formed on one front lower side of the knuckle body.

The upper arm may include an outer upper arm configured with a ball joint of an upper arm fastened to the upper ball joint mounter; An inner upper arm connected to the outer upper arm and coupled to a vehicle body; And an upper position variable step for fastening the outer and inner upper arms to each other, and adjusting a position of the ball joint of the upper arm in the front, rear, and vehicle width directions.

The upper position variable end may be integrally formed at an end of the outer upper arm, and an outer upper arm fastening plate having a plurality of overlapping bolt holes overlapped with bolt holes in a longitudinal direction of the vehicle body on a cross section; The inner upper is integrally formed at an end of the inner upper arm, and a plurality of overlapping bolt holes in which bolt holes are overlapped in the longitudinal direction of the vehicle body is formed on the cross section, and the inner upper bolts are mutually bolted through the outer upper arm fastening plate and each overlapping bolt hole. Female fastening plate; And a plurality of spacers interposed between the outer and inner upper arm fastening plates and bolted together to adjust the vehicle width direction length of the upper arm.

The lower arm may include an outer lower arm having a ball joint of a lower arm fastened to the lower ball joint mounter; An inner lower arm connected to the outer lower arm and coupled to a vehicle body; And a lower position variable step for fastening the outer and inner lower arms to each other, and adjusting a position of the ball joint of the lower arm with respect to the front, rear, and vehicle width directions.

The lower position variable end may be integrally formed at an end of the outer lower arm, and an outer lower arm fastening plate having a plurality of overlapping bolt holes overlapped with bolt holes in a longitudinal direction of the vehicle body on a cross section; The inner lower arm is formed integrally with an end of the inner lower arm, and a plurality of overlapping bolt holes in which a bolt hole is overlapped in the longitudinal direction of the vehicle body is formed on the cross section, and inner lower bolts are mutually bolted through the outer lower arm fastening plate and each overlapping bolt hole. Female fastening plate; And a plurality of spacers interposed between the outer and inner lower arm fastening plates and bolted together to adjust the vehicle width direction length of the lower arm.

Embodiment of the present invention to adjust the position of the center point of each ball joint mounting portion in the front and rear, inside and outside direction of the vehicle body through the upper and lower geometry variable means configured in the upper and lower parts of the knuckle body, the upper arm and the lower arm are each position By dualizing with variable means, the position of ball joints can be adjusted in the front, rear, and outer directions of the vehicle body, so that the geometric characteristic factors can be changed more independently than the existing method, and in particular, the moment around the kingpin shaft due to the front / rear force, lateral force, etc. The setting and the effective arm length can be adjusted independently.

Accordingly, even in the vehicle development stage, it is possible to evaluate the influence of the variables in detail when evaluating the characteristics of the geometric principle.

1 is a conceptual diagram illustrating a problem caused by the adjustment of the ground king pin offset through a common double wishbone suspension.
2 is a conceptual view illustrating a problem caused by the adjustment of the caster through a general double wishbone suspension.
3 is a conceptual view illustrating a problem caused by adjusting a caster trail through a general double wishbone suspension.
4 is an exploded perspective view of a geometry independent variable double wishbone suspension according to an embodiment of the present invention.
5 is an exploded perspective view of the upper geometry variable means on the knuckle body applied to the geometry independent variable double wishbone suspension according to an embodiment of the present invention.
6 is a partial projection perspective view of the lower geometry variable means on the knuckle body applied to geometry independent variable double wishbone suspension according to an embodiment of the present invention.
7 is an exploded perspective view of a tie rod connector on the knuckle body applied to the geometry independent variable double wishbone suspension according to an embodiment of the present invention.
8 is an exploded perspective view of an upper arm applied to a geometry independent variable double wishbone suspension according to an exemplary embodiment of the present invention.
9 is a cross-sectional view of an upper position variable step of the upper arm applied to the geometry independent variable double wishbone suspension according to the embodiment of the present invention.
10 is an exploded perspective view of a lower arm applied to a geometry independent variable double wishbone suspension according to an embodiment of the present invention.
11 is a side view of a lower arm applied to a geometry independent variable double wishbone suspension according to an exemplary embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention.

In order to clearly describe the embodiments of the present invention, parts irrelevant to the description are omitted.

4 is an exploded perspective view of a geometry independent variable double wishbone suspension according to an embodiment of the present invention, Figure 5 is a top geometry variable means on the knuckle body applied to the geometry independent variable double wishbone suspension according to an embodiment of the present invention Figure 6 is an exploded perspective view, Figure 6 is a partial projection perspective view of the lower geometry variable means on the knuckle body applied to the geometry independent variable double wishbone suspension according to an embodiment of the present invention, Figure 7 is a geometry independent variable type according to an embodiment of the present invention An exploded perspective view of a tie rod connector on the knuckle body applied to a double wishbone suspension.

4, the geometry independent variable double wishbone suspension according to an embodiment of the present invention is the knuckle body (1), the upper geometry variable means 10, the lower geometry variable means 20, tie rod connector 30 And an upper arm 40 and a lower arm 50.

The knuckle body 1 has both upper coupling ends 3 formed on both sides of the upper portion, and both lower coupling ends 5 formed on both lower sides thereof.

The upper side coupling end 3 and the lower side coupling 5 are formed at predetermined intervals, respectively.

Referring to FIG. 5, the upper geometry variable means 10 is fastened with bolts B between both upper coupling ends 3 of the knuckle body 1.

Here, the upper geometry variable means 10 is composed of an upper adjustment block 11 and the upper ball joint mounter (13).

The upper adjustment block 11 is interposed between the upper coupling end 3 on both sides is fastened with a bolt (B) to be able to adjust the position in the front and rear direction of the vehicle body, the fastening portion in which the screw hole 17 is processed on both sides of the vehicle width direction 15 are formed integrally with each other.

The upper ball joint mounter 13 is fastened to the fastening part 15 by bolts B so as to be adjustable in the vehicle width direction with respect to the upper adjustment block 11.

At this time, a plurality of spacers 19 for maintaining each gap is interposed between the upper coupling end 3 on both sides and the two side surfaces of the upper adjustment block 11 to be bolted together.

In addition, a plurality of washers (W) for maintaining a gap between the fastening portion 15 and the upper ball joint mounter 13 of the upper adjustment block 11 is fastened together by a bolt (B), The upper arm 40 is coupled to the ball joint mounter 13 by a ball joint BJ.

Here, the upper arm 40 coupled to the ball joint BJ to the upper ball joint mounter 13 has the center point position of the mounting portion of the ball joint BJ adjusted through the spacer 19 and the washer W.

That is, the interval between the two upper coupling end (3) and both sides of the upper adjustment block 11 is adjusted by the addition and decrease of the spacer 19, and the fastening portion 15 of the upper adjustment block (11) The interval between the upper ball joint mounter 13 is adjusted through the adjustment of the washer (W) to adjust the kingpin shaft and caster angle by adjusting the position of the center point of the mounting portion of the ball joint (BJ) of the upper arm (40) It becomes possible.

Referring to FIG. 6, the lower geometry variable means 20 includes a lower ball joint mounter 21 and both coupling ends 23 fastened to both lower coupling ends 5.

In this case, overlapping bolt holes BH are formed in the lower coupling ends 5, in which a plurality of bolt holes overlap each other in the vehicle width direction.

In addition, the lower ball joint mounter 21 is disposed between both lower coupling ends 5 to fasten the ball joint BJ of the lower arm 50.

The two fastening ends 23 are integrally formed at both sides of the lower ball joint mounter 21.

Here, the two fastening ends 23 are fastened to the respective bolt bolts BH in the front and rear direction of the vehicle body by bolts B corresponding to the respective outer sides of the both lower coupling ends 5.

At this time, a plurality of spacers 25 for maintaining respective gaps are interposed between the lower coupling ends 5 and the both coupling ends 23, and are fastened together by bolts B.

Here, the lower arm joint coupled to the lower ball joint mounter 21 as the ball joint BJ has a center point position of the mounting portion of the ball joint BJ through the overlap bolt hole BH and the spacer 25. Adjusted.

In other words, each gap between the lower coupling end 5 on both sides and the fastening end 23 on both sides is adjusted by adding or subtracting the spacer 25.

In addition, the lower ball joint mounter 21 and both fastening ends 23 are center points of the ball joint BJ mounting portion of the lower arm 50 according to the fastening position of the bolt B with respect to the overlapping bolt hole BH. The position is adjusted to allow for variable adjustment of the kingpin shaft and cast angle.

Referring to FIG. 7, the tie rod connecting body 30 is configured to adjust a fastening position with a tie rod (not shown) on the front lower side of the knuckle body 1. A plurality of bolt holes 31 are formed at one front lower side.

In addition, the tie rod connecting member 30 is fastened by a bolt B so that the tie rod connecting member 30 can be positioned in the front and rear directions of the vehicle body via a plurality of spacers 33 in the bolt hole 31.

Here, the tie rod connecting body 30 allows the effective arm length to be adjusted by adding or subtracting the spacer 33.

8 is an exploded perspective view of an upper arm applied to a geometry independent variable double wishbone suspension according to an embodiment of the present invention, and FIG. 9 is an upper arm applied to the geometry independent variable double wishbone suspension according to an embodiment of the present invention. The upper position is one cross section of the variable stage.

8 and 9, the upper arm 40 is coupled to the upper ball joint mounter 13 of the upper geometry variable means 10 through a ball joint BJ.

Here, the upper arm 40 has a dual configuration in which the upper position is connected via the variable end 45, and is composed of an outer upper arm 41, an inner upper arm 43, and an upper position variable end 45.

The outer upper arm 41 has a ball joint BJ of the upper arm 40 fastened to the upper ball joint mounter 13.

In addition, the inner upper arm 43 is connected to the outer upper arm 41 and coupled to the vehicle body.

In addition, the upper position variable stage 45 is fastened to the outer and inner upper arms 41 and 43, but adjusts the position of the ball joint (BJ) of the upper arm 40 in the front and rear and the vehicle width direction of the vehicle body do.

Here, the upper position variable stage 45 is composed of an outer upper arm fastening plate 45a, the inner upper arm fastening plate 45b.

The outer upper arm fastening plate 45a is integrally formed at an end portion of the outer upper arm 41, and a plurality of overlapping bolt holes BH in which a bolt hole is overlapped in the vehicle body length direction is formed on a cross section.

The inner upper arm fastening plate 45b is integrally formed at an end portion of the inner upper arm 43, and a plurality of overlapping bolt holes BH in which a bolt hole is overlapped in a longitudinal direction of a vehicle body is formed on a cross section. The upper arm fastening plate 45a and each overlapping bolt hole BH are fastened to the mutual bolt B.

In addition, the upper arm 40 may be fastened together with a bolt B through a plurality of spacers 47 between the outer and inner upper arm fastening plates 45a and 45b to adjust the vehicle width direction length of the upper arm 40. .

At this time, the upper arm 40 has a dual configuration in which the upper position is connected through the variable stage 45 to allow the fastening position of the ball joint BJ to be adjusted to the front, rear, and lateral directions of the vehicle.

That is, the upper position variable stage 45 adjusts the gap between the outer upper arm fastening plate 45a and the inner upper arm fastening plate 45b through the adjustment of the spacer 57, and the overlap bolt hole BH. The fastening position of the ball joint BJ of the upper arm 40 with respect to the transverse and front-rear direction of the vehicle is adjusted according to the fastening position of the bolt B with respect to).

10 is an exploded perspective view of a lower arm applied to a geometry independent variable double wishbone suspension according to an embodiment of the present invention, and FIG. 11 is a view of a lower arm applied to a geometry independent variable double wishbone suspension according to an embodiment of the present invention. One side view.

10 and 11, the lower arm 50 is coupled to the lower ball joint mounter 21 of the lower geometry variable means 20 through the ball joint BJ, and the lower position variable stage 55 is provided. In a dual configuration connected through, the outer lower arm 51, the inner lower arm 53, and the lower position is composed of a variable stage (55).

The outer lower arm 51 has a ball joint BJ of the lower arm 50 fastened to the lower ball joint mounter 21.

In addition, the inner lower arm 53 is connected to the outer lower arm 51 and coupled to the vehicle body.

The lower position variable stage 55 fastens the outer and inner lower arms 51 and 53 to each other, and adjusts the position of the ball joint BJ of the lower arm 50 in the front, rear, and vehicle width directions. do.

Here, the lower position variable stage 55 is composed of an outer lower arm fastening plate 55a and an inner lower arm fastening plate 55b.

The outer lower arm fastening plate 55a is integrally formed at an end of the outer lower arm 51, and a plurality of overlapping bolt holes BH in which the bolt holes are superposed in the longitudinal direction of the vehicle body are formed on the cross section.

The inner lower arm fastening plate 55b is integrally formed at an end of the inner lower arm 53, and a plurality of overlapping bolt holes BH are formed on the cross section in which bolt holes are overlapped in the vehicle body length direction. The lower arm fastening plate 55a and each overlap bolt hole BH are fastened to the mutual bolt B.

In addition, a bolt B may be fastened together through a plurality of spacers 57 between the outer and inner lower arm fastening plates 55a and 55b to adjust the vehicle width direction length of the lower arm 50. .

At this time, the lower arm 50 has a dual configuration in which the lower position is connected through the variable stage 55 to allow adjustment of the fastening position of the ball joint BJ in the front and rear and transverse directions of the vehicle.

That is, the lower position variable stage 55 adjusts the gap between the outer lower arm fastening plate 55a and the inner lower arm fastening plate 55b by adding or subtracting the spacer 57, and the overlapping bolt hole BH. In accordance with the fastening position of the bolt B, the fastening position of the ball joint BJ of the lower arm 50 with respect to the transverse direction and the front-rear direction of the vehicle is adjusted.

The geometry independent variable double wishbone suspension according to the embodiment of the present invention is the upper arm in the front and rear, inside and outside directions of the vehicle body through the upper and lower geometry variable means (10, 20) configured in the upper and lower parts of the knuckle body (1) (40) and the center point position of each ball joint (BJ) mounting portion of the lower arm (50), and the upper arm (40) and the lower arm (50) have respective position variable stages (45, 55). Through this, it is possible to adjust the position of the ball joint in the front and rear, the inside and the outside direction, there is an advantage that the geometry characteristic factors can be changed independently than the conventional method.

In particular, the moment setting around the kingpin shaft and the effective arm length can be adjusted independently by front / rear force, lateral force, etc. Therefore, the effects of variables can be evaluated in detail during the vehicle development stage when evaluating the characteristics of the geometric principle. .

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and is easily changed by those skilled in the art to which the present invention pertains. It includes all changes to the extent deemed acceptable.

1: knuckle body
3: both upper coupling end
5: Both bottom coupling ends
10: Upper geometry variable means
11: upper adjustment block
13: upper ball joint mounter
15: Fastening part
17: screw hole
19: spacer
20: lower geometry variable means
21: lower ball joint mounter
23: both ends
25: spacer
30: tie rod connector
31: bolt hole
33: spacer
40: upper arm
41: outer upper arm
43: inner upper arm
45: Upper position variable stage
45a: outer upper arm fastening plate
45b: inner upper arm fastening plate
47: spacer
50: lower arm
51: outer lower arm
53: medial lower arm
55: lower position variable stage
55a: outer lower arm fastening plate
55b: inner lower arm fastening plate
57: spacer
B: bolt
W: Washer
BH: Nested Bolt Hole
BJ: ball joint

Claims (11)

A knuckle body having both upper coupling ends formed at both upper sides thereof, and both lower coupling ends formed at both lower ends thereof;
Upper and lower geometry variable means configured to have bolt fastening structures at both upper and lower coupling ends of the knuckle body to variably adjust a kingpin shaft and a cast angle;
A tie rod connecting member configured to adjust a fastening position with a tie rod on a front lower side of the knuckle body;
An upper arm coupled to the upper geometry variable means, the upper arm being capable of adjusting the ball joint fastening position with respect to the front and rear and transverse directions of the vehicle in a dual configuration in which an upper position is connected through a variable end; And
A lower arm coupled to the lower geometry variable means, the lower arm being capable of adjusting the ball joint fastening position with respect to the front and rear and transverse directions of the vehicle in a dual configuration in which a lower position is connected through a variable stage;
Geometry independent variable double wishbone suspension comprising a. The method of claim 1,
The upper geometry variable means
An upper adjustment block interposed between the upper coupling ends of the two sides to be bolted to adjust the position in the front and rear directions of the vehicle body, and fastening parts formed with screw holes formed on both sides of the vehicle width direction; And
An upper ball joint mounter bolted to each of the fastening units so as to be adjustable in a vehicle vehicle width direction with respect to the upper adjustment block, and to which a ball joint of the upper arm is fastened;
Geometry independent variable double wishbone suspension. The method of claim 2,
Geometry independent variable double wishbone suspension bolted together with a plurality of spacers for maintaining each gap between the upper coupling end of both sides and both sides of the upper adjustment block. The method of claim 2,
Geometry independent variable double wishbone suspension bolted together with a plurality of washers for maintaining a gap between the fastening portion of the upper adjustment block and the upper ball joint mounter. The method of claim 1,
The lower geometry variable means
Forming overlapping bolt holes in which the plurality of bolt holes overlap each other in the vehicle width direction at both lower coupling ends;
A lower ball joint mounter disposed between the two lower coupling ends to which the ball joint of the lower arm is fastened; And
It is integrally formed on both sides of the lower ball joint mounter so that the lower ball joint mounter can be positioned in the front and rear direction of the vehicle body and the vehicle width direction so as to correspond to the respective outer sides of the lower coupling ends of the both side bolts in the vehicle front and rear directions in each of the overlapping bolt holes. Fastening both ends fastening;
Geometry independent variable double wishbone suspension. The method of claim 5,
Geometry independent variable double wishbone suspension bolted together with a plurality of spacers for maintaining each gap between the lower coupling end and the both sides of the coupling end. The method of claim 1,
The tie rod connector is
Geometry independent variable double wishbone suspension is bolted to be adjustable in the front and rear direction of the vehicle body via a plurality of spacers in the plurality of bolt holes formed on one side of the front lower portion of the knuckle body. The method of claim 2,
The upper arm is
An outer upper arm configured with a ball joint of an upper arm fastened to the upper ball joint mounter;
An inner upper arm connected to the outer upper arm and coupled to a vehicle body; And
An upper position variable stage for fastening the outer and inner upper arms to each other and adjusting a position of a ball joint of the upper arm in a front, rear, and vehicle width directions;
Geometry independent variable double wishbone suspension comprising a. The method of claim 8,
The upper position variable stage
An outer upper arm fastening plate which is integrally formed at an end of the outer upper arm and has a plurality of overlapping bolt holes in which a bolt hole is overlapped in a longitudinal direction of a vehicle body;
The inner upper is integrally formed at an end of the inner upper arm, and a plurality of overlapping bolt holes in which a bolt hole is overlapped in the longitudinal direction of the vehicle body is formed on the cross section, and the inner upper is bolted to each other through the outer upper arm fastening plate and each overlapping bolt hole. Female fastening plate; And
A plurality of spacers interposed between the outer and inner upper arm fastening plates and bolted together to adjust the vehicle width direction length of the upper arm;
Geometry independent variable double wishbone suspension comprising a. The method of claim 5,
The lower arm is
An outer lower arm configured with a ball joint of a lower arm fastened to the lower ball joint mounter;
An inner lower arm connected to the outer lower arm and coupled to a vehicle body; And
A lower position variable stage for fastening the outer and inner lower arms to each other and adjusting a position of the ball joint of the lower arm in front and rear of the vehicle body and in the vehicle width direction;
Geometry independent variable double wishbone suspension comprising a. The method of claim 10,
The lower position value variable stage
An outer lower arm fastening plate which is integrally formed at an end of the outer lower arm and has a plurality of overlapping bolt holes in which a bolt hole is overlapped in a longitudinal direction of a vehicle body;
The inner lower arm is integrally formed at an end of the inner lower arm, and a plurality of overlapping bolt holes in which the bolt holes are overlapped in the longitudinal direction of the vehicle body is formed on the cross section, and the inner lower bolts are mutually bolted through the outer lower arm fastening plate and each overlapping bolt hole. Female fastening plate; And
A plurality of spacers interposed between the outer and inner lower arm fastening plates and bolted together to adjust the vehicle width direction length of the lower arm;
Geometry independent variable double wishbone suspension comprising a.
KR1020140155658A 2014-11-10 2014-11-10 Geometric independent variable type double wishbone suspension system KR102041918B1 (en)

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US11820449B2 (en) 2021-10-28 2023-11-21 Hyundai Motor Company Independent corner module

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US6371500B1 (en) 2000-08-28 2002-04-16 Spicer Technology, Inc. Cam mechanism for an adjustable wheel mounting assembly
JP2010018172A (en) 2008-07-11 2010-01-28 Bridgestone Corp Wheel alignment adjusting device
JP2010221755A (en) 2009-03-19 2010-10-07 Bridgestone Corp Wheel alignment adjusting device

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US6371500B1 (en) 2000-08-28 2002-04-16 Spicer Technology, Inc. Cam mechanism for an adjustable wheel mounting assembly
JP2010018172A (en) 2008-07-11 2010-01-28 Bridgestone Corp Wheel alignment adjusting device
JP2010221755A (en) 2009-03-19 2010-10-07 Bridgestone Corp Wheel alignment adjusting device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11820449B2 (en) 2021-10-28 2023-11-21 Hyundai Motor Company Independent corner module

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