TW201522115A - Regulating method of vehicle's center of parallel wheel motion and wheel camber angle and regulating device thereof - Google Patents

Abstract

A regulating method of vehicle's center of parallel wheel motion and wheel camber angle and its regulating device is provided. Its device comprises a regulating component, a base and a cantilever. The regulating component has an altitude regulation module. The altitude regulation module has a linkage ball joint that is screwed to the lower pivot of the steering knuckle. The regulating component could regulate the located height of the altitude regulation module along a first direction. The base has a slab having a guide mechanism. The guide mechanism is connected to the regulating component to allow it for relative slide or mutual fixation along a second direction of the slab. The cantilever is extended from the base and pivotally connected to the vehicle body.

Description

Method for adjusting vehicle roll center and wheel camber angle and adjusting device thereof

The present invention relates to a method for adjusting a roll center of a vehicle and a camber angle of a wheel, and an adjusting device thereof, and more particularly to an adjusting device for applying a fulcrum lower fulcrum between a suspension system and a steering system, at a level thereof The method of adjusting the vehicle roll center and the wheel camber angle and the adjusting device thereof are adjusted in the vertical direction.

In response to the general vehicle's improved vehicle handling performance, the components of the chassis suspension, such as springs, shock absorbers, rims, etc., are modified to reduce the handling capability of the vehicle body A, as shown in Figure 1A and Figure 1B, when the vehicle body A When the center of gravity B is lowered, the instantaneous center of rotation P of the vehicle C also changes (falls), so the position of the roll center R thereof also decreases, which also causes a change in the roll center height H, so that the original roll center height is made. H is the basis and the performance of the calibration is not lost. In this state, if the adjustment of the hard point position of the original vehicle suspension is ignored, the change to the camber angle E of the wheel C (as shown in Fig. 2) will be introduced ( For example, from negative to positive), or the roll center R is lowered from high to low, causing uneven tire wear and the like.

In addition, the weight of the electric vehicle is heavier than that of the gasoline vehicle. Therefore, it is impossible to completely follow the chassis of the gasoline vehicle, and it is necessary to re-adjust and replace the original design components, so that the suspension inclination angle after the adjustment is different from the original design. Therefore, it is necessary to use the adjustment mechanism to correct its hard point position.

Taiwan Patent No. TW I356008 "Tip Angle Adjustment Mechanism for Vehicle Suspension" discloses a tilt adjustment mechanism for a vehicle suspension, comprising a swing portion pivotally connected to a base; and a joint portion fixed to a cantilever Wherein, by the rotation of the joint portion, the cantilever is The distance of the pedestal changes. The conventional patent uses a rotating eccentric bolt to quickly adjust the tilt angle, but also because the eccentric joint rotation is used to control the accuracy, so that it cannot be accurately adjusted to an appropriate position.

Taiwan Patent No. TW 159805 "Universal Wheel Inclination Angle Adjustment Device" discloses a camber angle adjustment device comprising a cam bolt and a cam plate assembly, and a mounting method for enabling the vehicle to be installed quickly and conveniently Set this assembly and adjust the front wheel camber. However, due to the rotation of the cam, it is impossible to accurately adjust to the proper position.

WO2011122002A1 discloses a method for adjusting a camber angle by using a motor and a speed reduction mechanism to drive a cam. Although the adjustment can be made quickly, the mechanism is complicated, the price is high, and the lightweight chassis is not helpful.

The object of the present invention is to provide an adjustment device for a vehicle roll center and a wheel camber angle, which is applied to an adjustable device at a hanging hard point position, and the vehicle roll center and the wheel camber angle are adjusted by a mechanism design of the adjusting device. Change to transform different vehicle handling performance.

Another object of the present invention is to provide a method for adjusting a roll center of a vehicle and a camber angle of a wheel, which is capable of efficiently performing a degree of calibration of a roll center and/or a camber angle with a simple operation flow.

In order to achieve the above-described purpose of providing an adjustment device for a vehicle roll center and a wheel camber angle, the present invention includes a base, an adjustment assembly, and a boom. The adjustment component has an elevation adjustment module, the elevation adjustment module has a link ball joint, the link ball joint is screwed to the lower pivot point of the steering knuckle, and the adjustment component can adjust the position of the elevation adjustment module along a first direction height. The base has a flat plate having a guiding mechanism, and the guiding mechanism is coupled to the adjusting assembly to slide or fix relative to each other along a second direction on the flat plate. The cantilever system extends from the base and is pivotally connected to the vehicle body.

In an embodiment, the guide mechanism of the base is disposed along a first direction of a chute And a guide groove on both sides of the sliding slot; the adjusting assembly is screwed to the bottom of the base by a fixing screw fastener passing through the guiding slots, and the connecting rod ball joint protrudes from the sliding groove to protrude from the first plane.

In an embodiment, the elevation adjustment module has a sleeve-like adjustment portion, the adjustment portion has a thread on the surface of the adjustment portion, a ball socket head is disposed on the end surface of the adjustment portion, and the link ball joint is connected to the ball socket head, and the adjustment component further comprises a slip The block and a fixing fastener have a height adjusting screw hole, and the adjusting portion is screwed with the height adjusting screw hole of the slider through the thread, and then the fixing portion is fixed to the slider by the fixing fastener. In addition, the fixing fastener is a nut fastener, and the nut fastener is screwed into the surface of the adjusting portion and is pressed against the bottom surface of the slider to fix the adjusting portion to the slider. Moreover, the first plane extends downwardly to the pair of side plates, and a slide path parallel to the first direction is formed between the side plates, and the slider is limited to slide in the slide track. And, the sliding block is limited to the sliding in the sliding channel, and a camber adjusting bolt of the connecting slider is screwed into a screw hole disposed on a fixing plate extending downward from the first plane, and the tail end of the bolt is used The slider is connected and pulled, the fixing plate is perpendicular to the pair of side plates, and the camber adjusting bolt is disposed in a direction parallel to the first direction.

In order to achieve the foregoing method for adjusting the vehicle roll center and the wheel camber angle, the technical means provided by the present invention include the following: providing the adjusting device as described above and its connection relationship with the vehicle body and the steering knuckle; adjusting the roll center height Fixing the fixed relationship between the adjusting portion and the slider by fixing the fastener, and rotating the adjusting portion to a position, and then fixing the adjusting portion to the slider with the fixing fastener to adjust the connecting rod ball joint along the second direction Height position, thereby changing the height of the fulcrum of the knuckle; adjusting the camber angle, loosening the fixing screw fasteners, sliding the adjusting component in the first direction to a position, and then re-locking the fixing screws In order to change the distance between the connecting rod ball joint and the vehicle body, thereby changing the angle of the camber angle of the wheel.

As described above, the features of the present invention include: the present invention is an adjustable device disposed at a suspended hard point position (the joint point of the suspension system and the steering system), and the mechanism design of the adjustment device is applied to adjust the suspension of the vehicle. Inclination and roll center height to change suspension parameters And the suspension geometry, so that the most simple and safe way to transform different vehicle handling performance. Furthermore, the adjustment structure of the present invention is consistent with the design style of the vehicle suspension, and is easy to be combined with each other, and can be applied to a durable mechanism and is not easy to malfunction.

20‧‧‧Adjustment device

21‧‧‧Adjusting components

211‧‧‧Elevation adjustment module

2111‧‧‧Connector ball joint

21111‧‧‧ screw end

21112‧‧‧ ball end

2112‧‧‧Regulatory Department

21121‧‧‧Thread

21122‧‧‧ Ball head

212‧‧‧ Slider

2121‧‧‧Elevation adjustment screw hole

2122‧‧‧ screw holes

2123‧‧‧ Hole

21231‧‧‧C type buckle

213‧‧‧Fixed fasteners

22‧‧‧ pedestal

221‧‧‧ tablet

222‧‧‧Guiding agency

2221‧‧ ‧ chute

2222‧‧‧ Guide slot

223‧‧‧ side panels

224‧‧‧ fixed plate

2241‧‧‧ screw holes

23‧‧‧Cantilever

30‧‧‧Fixed screw fasteners

40‧‧‧Curved angle adjustment bolt

A‧‧‧ body

A1‧‧‧suspension system

A11‧‧‧ Shock Absorber

A2‧‧‧ steering system

A21‧‧‧ steering knuckle

A22‧‧‧ fulcrum

A3‧‧‧ wheel steering shaft

B‧‧‧ Center of gravity

C‧‧‧ Wheels

D‧‧·wheels

P‧‧‧ instantaneous rotation ratio

R‧‧‧ Rolling Center

H‧‧‧Center height of the roll

E‧‧‧Chamfer

W1‧‧‧ first direction

W2‧‧‧ second direction

Step S10~Step S30‧‧‧ Step flow

1A-1B are schematic diagrams showing changes of a vehicle roll center after a vehicle weight increase; FIG. 2 is a schematic diagram of a wheel camber angle; FIG. 3 is an exploded perspective view of a vehicle roll center and a wheel camber angle adjusting device according to an embodiment of the present invention; 4A is a perspective view of an apparatus for adjusting a roll center and a camber angle of a vehicle according to an embodiment of the present invention; and FIG. 4B is a plan view showing the adjustment assembly of FIG. 4A combined with the base 21. 5 is a plan view of a vehicle roll center and a wheel camber adjusting device according to an embodiment of the present invention; FIG. 6 is a perspective view of a combined tire and a wheel camber of a vehicle roll center and a wheel camber according to an embodiment of the present invention; 7 is a front view of a combined tire and a shock absorber of a vehicle roll center and a wheel camber angle according to an embodiment of the present invention; and FIG. 8 is a flow chart of a method for adjusting a roll center and a wheel camber angle of a vehicle according to an embodiment of the present invention; .

The embodiment of the present invention will be described with reference to the drawings.

3 to 5, 6, and 7. The vehicle roll center and the wheel camber adjusting device 20 in this embodiment are applicable to the intersection of the suspension system A1 of the vehicle body A and the steering system A2 (as shown in FIGS. 6 and 7), specifically, One end of the shock absorber A11 of the suspension system A1 is connected to the vehicle body A, and the opposite end of the shock absorber A11 is connected to a steering knuckle of the steering system A2. (steering knuckle) A21, the outer side of the knuckle A21 is connected to a hub D and a wheel C. The inner side of the knuckle A21 has a lower fulcrum A22 passing through a steering shaft A3 of the wheel. The structure of the adjusting device 20 includes adjustment. The assembly 21, the base 22 and the cantilever 23: as shown in FIG. 3, FIG. 4A, FIG. 4B and FIG. 5, the adjustment assembly 21 has an elevation adjustment module 211, and the elevation adjustment module 211 has a link ball joint. 2111, the connecting rod ball joint 2111 has a screw end 21111 and a ball end 21112. The screw end 21112 is screwed to the lower fulcrum A22 of the knuckle A21. The adjusting component 21 can adjust the first direction W1. The height of the elevation adjustment module 211 (i.e., the height of the screw end 21111 is also changed synchronously).

The pedestal 22 has a flat plate 221, and the flat plate 221 is provided with a guiding mechanism 222. The guiding mechanism 222 can connect the adjusting component 21 and make the adjusting component 21 along a second surface of the flat plate 221 The direction W2 relatively slid the base 22 with the adjustment assembly 21 or secures the base 22 and the adjustment assembly 21 to each other.

The cantilever 23 extends from the base 21 and is pivotally connected to the vehicle body A. In an embodiment, the boom 23 and the body A may be a single arm; or in another embodiment, a two-arm connection.

In an embodiment, the guiding mechanism 222 of the pedestal 22 of the pedestal 22 is a sliding slot 2221 disposed along the second direction W2 and a guiding slot 2222 on both sides of the sliding slot 2221, that is, the sliding The groove direction of the groove 2221 and the two guide grooves 2222 is the same direction as the second direction W2. After the fixing screw member 30 passes through the guiding slots 2222, the adjusting component 21 is screwed into the screw hole 2122 of the slider 212, and the adjusting component 21 including the slider 212 and the elevation adjusting module 211 is screwed to The base 22 is at the bottom, and the link ball joint 2111 passes through the sliding slot 2221 and protrudes from the flat plate 221.

In an embodiment, the elevation adjustment module 211 has a sleeve-shaped adjustment portion 2112. The surface of the adjustment portion 2112 has a thread 21121. The end portion of the adjustment portion 2112 is provided with a ball socket head 21122, and the link ball is provided. The ball end 21112 of the joint 2111 is connected to the ball socket 21122, and the screw end 21111 of the other end of the link ball joint 2111 protrudes outward; the adjusting component 21 Further comprising a slider 212 and a fixing fastener 213, the slider 212 defines an elevation adjusting screw hole 2121, and the adjusting portion 2112 is screwed through the thread 21121 to the elevation adjusting screw hole 2121 of the slider 212. (At this time, the adjusting portion 2112 rotates the elevation adjusting screw hole 2121 to advance and retreat in the first direction W1), and then fixes the adjusting portion 2112 to the slider 212 by the fixing fastener 213 (in one implementation) In the example, a nut fastener can be screwed into the surface of the adjusting portion 2112 from the bottom end of the adjusting portion 2112 and pressed against the bottom surface of the slider 212 to adjust the adjusting portion 2112. Fixed to the slider 212).

In an embodiment, the flat plate 221 extends downwardly with a pair of parallel side plates 223. The pair of side plates 223 form a slide parallel to the second direction W2, and the slider 212 is limited to the slide. Slip.

Further, in an embodiment, the flat plate 221 further has a fixing plate 224 extending perpendicularly to the short side of the pair of side plates 223. The fixing plate 224 is provided with a screw hole 2241, thereby limiting the slider 212. The adjusting structure of the sliding in the sliding channel can be screwed into the screw hole 2241 by using a camber adjusting bolt 40 connected to the slider 212. At this time, the camber adjusting bolt 40 is disposed in a direction parallel to the second After the direction W2), the tail end of the camber adjustment bolt 40 is connected and the slider 212 in the slide is pulled (this connection and traction mechanism is known to those skilled in the art, for example, in the slider 212 Corresponding to the screwing direction of the camber adjusting bolt 40, a hole 2123 through which the rear end of the camber adjusting bolt 40 is inserted is opened, and a C is inserted into the inner side of the hole 213 at the end of the camber adjusting bolt 40. The camber 21231 restrains the camber to adjust a neck of the tail end of the bolt 40).

Please refer to FIG. 8 and FIG. 7 in conjunction with FIG. The method for adjusting the vehicle roll center and the wheel camber angle of the embodiment includes the following steps: step S10, providing the aforementioned adjusting device 20, and the link ball joint 2111 of the elevation adjusting module 211 of the adjusting device 20 (screw) End 21111) screwed to the lower fulcrum of steering knuckle A21 A22 (the junction of the suspension system A1 and the steering system A2), and the cantilever 23 is pivotally connected to the vehicle body A.

In step S20, the step of adjusting the roll center height H is performed, and the fixing member 213 is first released from the fixing relationship between the adjusting portion 2112 and the slider 212 (for example, when the fixing fastener 213 is a nut fastener), the screw is loosened. After the adjusting portion 2112 is raised or lowered in the first direction W1 to a position to be adjusted, the adjusting portion 2112 is fixed to the slider 212 again by the fixing fastener 213. The height position of the link ball joint 2111 is adjusted along the first direction W1, thereby changing the height of the lower fulcrum A22 of the knuckle A21.

Step S30, adjusting the camber angle step, loosening the fixing screw fasteners 30 to release the fixing relationship between the flat plate 221 and the slider 212, and sliding the adjusting component 21 along the first direction to a positioning position. Then, the fixing screw fasteners 30 are re-locked to change the distance between the connecting rod ball joint 2111 and the vehicle body A, thereby changing the angle of the camber angle E of the wheel C.

It should be noted that the sequence of the step S20 of adjusting the roll center height and the step S30 of adjusting the camber angle may be mutually interchanged, or in another step, starting another step and staggering.

In view of the above, at least the advantages of the present invention are: the invention is applied to an adjustable device disposed at a hanging hard point position (the joint point of the suspension system and the steering system), and the mechanism design of the adjusting device is applied, and the vehicle suspension can be adjusted. The inclination angle and the center height of the roll are used to change the suspension parameters and the suspension geometry, so that the vehicle handling performance can be modified in the simplest and safe way. Furthermore, the adjustment structure of the present invention is consistent with the design style of the vehicle suspension, and is easy to be combined with each other, and can be applied to a durable mechanism and is not easy to malfunction.

The embodiments or examples of the technical means adopted by the present invention are not intended to limit the scope of implementation of the present patent. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.

20‧‧‧Adjustment device

21‧‧‧Adjusting components

211‧‧‧Elevation adjustment module

2111‧‧‧Connector ball joint

21111‧‧‧ screw end

21112‧‧‧ ball end

2112‧‧‧Regulatory Department

21121‧‧‧Thread

21122‧‧‧ Ball head

212‧‧‧ Slider

2121‧‧‧Elevation adjustment screw hole

2122‧‧‧ screw holes

2123‧‧‧ Hole

21231‧‧‧C type buckle

213‧‧‧Fixed fasteners

22‧‧‧ pedestal

221‧‧‧ tablet

222‧‧‧Guiding agency

2221‧‧ ‧ chute

2222‧‧‧ Guide slot

223‧‧‧ side panels

224‧‧‧ fixed plate

2241‧‧‧ screw holes

23‧‧‧Cantilever

30‧‧‧Fixed screw fasteners

40‧‧‧Curved angle adjustment bolt

Claims (10)

The utility model relates to a vehicle roll center and a wheel camber adjusting device, which is suitable for a suspension system. One end of the suspension system is connected to the vehicle body of the vehicle, and the other end is connected to a steering knuckle, and the outer side of the steering knuckle is connected to a wheel hub. And a wheel having a lower fulcrum passing through the steering shaft of the wheel, the adjusting device comprising: an adjusting component having an elevation adjusting module, the elevation adjusting module having a connecting rod ball joint and a connecting rod ball The joint is screwed to the lower fulcrum of the knuckle, the adjusting component adjusts the height of the elevation adjustment module along a first direction, and a base has a flat plate, the flat plate has a guiding mechanism The guiding mechanism connects the adjusting component to slide or fix relative to each other along a second direction on the flat plate; a cantilever extends from the base and is pivotally connected to the vehicle body. The apparatus for adjusting a vehicle roll center and a wheel camber angle according to the first aspect of the invention, wherein the guide mechanism of the base is a chute disposed along the second direction and both sides of the chute The same direction guiding groove; the adjusting component is screwed to the bottom of the base by a fixing screw fastener passing through the guiding grooves, and the connecting rod ball joint passes through the sliding groove to protrude from the sliding plate. The apparatus for adjusting a vehicle roll center and a wheel camber angle according to the second aspect of the invention, wherein the elevation adjustment module has a sleeve-shaped adjustment portion, the adjustment portion surface has a thread, and the adjustment portion end surface is disposed. a ball socket and connecting the connecting rod ball joint to the ball socket head, the adjusting component further comprises a slider and a fixing fastener, the slider has an elevation adjusting screw hole, and the adjusting portion transmits the thread and the adjusting portion After the elevation adjusting screw hole of the slider is screwed, the adjusting portion is fixed to the slider by the fixing fastener. The apparatus for adjusting a vehicle roll center and a wheel camber angle according to the third aspect of the invention, wherein the fixing fastener is a nut fastener, and the nut fastener is screwed into the thread of the surface of the adjusting portion. And pressing on the bottom surface of the slider to fix the adjusting portion to the slider. The apparatus for adjusting a vehicle roll center and a wheel camber angle according to the third aspect of the invention, wherein the plate extends downwardly to a pair of side plates, and a pair of side plates form a slide parallel to the second direction. And the slider is limited to slide in the slide. The apparatus for adjusting a roll center of a vehicle and a camber angle of a wheel according to claim 5, wherein the sliding block is located in the sliding track, and a camber adjusting bolt snail is connected to the sliding block. a screw hole disposed on a fixing plate extending downward from the flat plate, and connecting the tail end of the camber adjusting bolt and pulling the slider, the fixing plate is perpendicular to the pair of side plates, and the camber angle is adjusted The bolt setting direction is parallel to the second direction. The apparatus for adjusting a roll center of a vehicle and a camber angle of a wheel according to claim 1, wherein the cantilever is a single arm. The apparatus for adjusting a roll center of a vehicle and a camber angle of a wheel according to the first aspect of the invention, wherein the cantilever is an A arm. A method for adjusting a vehicle roll center and a wheel camber includes the following steps: providing an adjusting device according to claim 3 and its connection relationship with the car body and the steering knuckle; and adjusting the roll center height step And fixing the fixed relationship between the adjusting portion and the slider by the fixing fastener, and rotating the adjusting portion to be raised and lowered to a position along the first direction, and then fixing the adjusting portion to the sliding portion by the fixing fastener And adjusting the camber angle step, loosening the fixing screw fasteners, and sliding the adjusting component to a position along the second direction, and then re-locking the fixing screw fasteners. The method for adjusting a vehicle roll center and a wheel camber angle according to claim 9 , wherein the step of adjusting the roll center height and the step of adjusting the camber angle are mutually interchangeable.