CN114571934A - Vehicle and double-cross-arm suspension thereof - Google Patents
Vehicle and double-cross-arm suspension thereof Download PDFInfo
- Publication number
- CN114571934A CN114571934A CN202011372568.8A CN202011372568A CN114571934A CN 114571934 A CN114571934 A CN 114571934A CN 202011372568 A CN202011372568 A CN 202011372568A CN 114571934 A CN114571934 A CN 114571934A
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- arm
- suspension
- double
- cross
- vehicle
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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
- B60G3/28—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram at least one of the arms itself being resilient, e.g. leaf spring
Abstract
The invention provides a vehicle and a double-cross-arm suspension thereof, wherein the double-cross-arm suspension comprises an upper cross arm and a lower cross arm which are arranged along the vertical direction, and the upper cross arm and the lower cross arm are elastic arms capable of flexibly deforming upwards or downwards; one end of the elastic arm close to the frame is used for being fixed on the frame, and the other end of the elastic arm is hinged with a suspension support arm in the double-cross-arm suspension along an axis extending in the front-back direction; each spring arm forms a spring element and a guide element in the double wishbone suspension. The invention also provides a vehicle, which comprises a vehicle frame and the double-cross-arm suspension connected to the vehicle frame, wherein the double-cross-arm suspension of the vehicle is the same as the double-cross-arm suspension, so that the unsprung mass of the vehicle is reduced, and the vehicle has good smoothness and comfort.
Description
Technical Field
The invention relates to a vehicle and a double-wishbone suspension thereof.
Background
A vehicle suspension is an automobile part for connecting a wheel and a frame, mainly comprises a guide element, an elastic element and a damping element, and can provide guidance for a wheel assembly and relieve the transmission of impact caused by the unevenness of a running road from the wheel to the frame. The quality of the suspension quality of the vehicle directly influences the vibration damping performance, the driving stability and the driving smoothness of the vehicle. Currently, vehicle suspensions are classified into independent suspensions and dependent suspensions, wherein the independent suspensions are widely used, and the double wishbone suspension belongs to one of the independent suspensions.
Chinese utility model patent No. CN206589590U discloses a support arm, and a double wishbone suspension structure and an automobile using the support arm. The double-cross-arm suspension structure comprises a wheel assembly, a supporting arm fixed on the wheel assembly, and an upper cross arm and a lower cross arm which are arranged in the vertical direction and used for guiding the wheel assembly, wherein two ends of the upper cross arm and two ends of the lower cross arm are respectively fixed on the supporting arm and a frame. The double-wishbone suspension structure still includes that both ends are fixed respectively the elastic element on support arm and the frame, elastic element is the gasbag in this patent for alleviate the impact that transmits from the wheel assembly to the frame, improve vehicle damping nature, nevertheless because set up the gasbag that is used for improving vehicle damping nature alone, increased the unsprung mass of vehicle, thereby influence the stability of vehicle driving and the ride comfort that traveles.
Disclosure of Invention
The invention provides a double-cross-arm suspension, which enables a cross arm to have guiding and buffering functions at the same time, reduces the number of parts of the suspension and lightens the mass of the double-cross-arm suspension; the invention also provides a vehicle using the double-wishbone suspension, which reduces the unsprung mass of the vehicle and improves the driving stability and the driving smoothness of the vehicle.
In order to achieve the purpose, the vehicle adopts the following technical scheme:
the vehicle comprises a frame and a double-cross-arm suspension connected to the frame, wherein the double-cross-arm suspension comprises an upper cross arm and a lower cross arm which are arranged along the vertical direction, and the upper cross arm and the lower cross arm are elastic arms capable of flexibly deforming upwards or downwards; one end of the elastic arm close to the frame is fixed on the frame, and the other end of the elastic arm is hinged with a suspension support arm in the double-cross-arm suspension along an axis extending in the front-back direction; each spring arm forms a spring element and a guide element in the double wishbone suspension.
The beneficial effects are that: the upper cross arm and the lower cross arm of the double-cross-arm suspension are both elastic arms capable of flexibly deforming, and the elastic arms have certain rigidity, so that the upper cross arm and the lower cross arm have a guiding effect on the wheel assembly; and because the elastic arms can deform and have a certain buffering effect, the impact transmitted from the wheel assembly to the frame is effectively relieved, and the two cross arms have the same buffering effect as the elastic elements. The two cross arms are elastic arms, so that the two cross arms have a guide function and a buffering function at the same time, the guide function of the two cross arms and the buffering function of the elastic element in the prior art are integrated on the two cross arms, and the arrangement of the elastic element is reduced, so that the mass of a double-cross-arm suspension and the unsprung mass of a vehicle are reduced, and the driving stability and the driving smoothness of the vehicle are improved.
Furthermore, the elastic arm is formed by compounding fiber materials and polyurethane.
The beneficial effects are that: the elastic arms compounded by fiber and polyurethane are used as the upper cross arm and the lower cross arm, so that the elastic arms can deform and have certain rigidity to provide guidance for wheels, and the mass of the elastic arms is lighter than that of a cross arm made of metal, so that the overall weight of the double-cross-arm suspension is reduced.
Furthermore, the upper cross arm is V-shaped and comprises two independent cantilevers which are symmetrically arranged, and the two independent cantilevers are both arc-shaped structures.
The beneficial effects are that: the independent cantilever is set to be of an arc line structure, and the stress of the upper cross arm can be optimized.
Furthermore, the lower cross arm comprises a front cantilever and a rear cantilever which are arranged along the front-rear direction, the front cantilever is of an arc-shaped structure, and the rear cantilever is of a straight-line structure.
The beneficial effects are that: the front cantilever and the rear cantilever are different in shape, and the stress of the lower cross arm can be optimized.
Furthermore, the included angle between the plane of the upper cross arm and the plane of the lower cross arm is 0-5 degrees.
The beneficial effects are that: when the wheel jumps up, the camber angle of the suspension structure can be reduced, thereby improving the stability of the vehicle.
In order to achieve the purpose, the double-wishbone suspension adopts the following technical scheme:
the double-cross-arm suspension comprises an upper cross arm and a lower cross arm which are arranged along the vertical direction, wherein the upper cross arm and the lower cross arm are elastic arms which can flexibly deform upwards or downwards; one end of the elastic arm close to the frame is used for being fixed on the frame, and the other end of the elastic arm is hinged with a suspension support arm in the double-cross-arm suspension along an axis extending in the front-back direction; each spring arm forms a spring element and a guide element in the double wishbone suspension.
The beneficial effects are that: the upper cross arm and the lower cross arm of the double-cross-arm suspension are both elastic arms capable of flexibly deforming, and the elastic arms have certain rigidity, so that the upper cross arm and the lower cross arm have a guiding effect on the wheel assembly; and because the elastic arms can deform and have a certain buffering effect, the impact transmitted from the wheel assembly to the frame is effectively relieved, and the two cross arms have the same buffering effect as the elastic elements. The two cross arms are elastic arms, so that the two cross arms have a guide function and a buffering function at the same time, the guide function of the two cross arms and the buffering function of the elastic element in the prior art are integrated on the two cross arms, and the arrangement of the elastic element is reduced, so that the mass of a double-cross-arm suspension and the unsprung mass of a vehicle are reduced, and the driving stability and the driving smoothness of the vehicle are improved.
Furthermore, the elastic arm is formed by compounding fiber materials and polyurethane.
The beneficial effects are that: the elastic arms compounded by fiber and polyurethane are used as the upper cross arm and the lower cross arm, so that the elastic arms can deform and have certain rigidity to provide guidance for wheels, and the mass of the elastic arms is lighter than that of a cross arm made of metal, so that the overall weight of the double-cross-arm suspension is reduced.
Furthermore, the upper cross arm is V-shaped and comprises two independent cantilevers which are symmetrically arranged, and the two independent cantilevers are both arc-shaped structures.
The beneficial effects are that: the independent cantilever is set to be of an arc line structure, and the stress of the upper cross arm can be optimized.
Furthermore, the lower cross arm comprises a front cantilever and a rear cantilever which are arranged along the front-rear direction, the front cantilever is of an arc-shaped structure, and the rear cantilever is of a straight-line structure.
The beneficial effects are that: the front cantilever and the rear cantilever are different in shape, and the stress of the lower cross arm can be optimized.
Furthermore, the included angle between the plane of the upper cross arm and the plane of the lower cross arm is 0-5 degrees.
The beneficial effects are that: when the wheel jumps up, the camber angle of the suspension structure can be reduced, thereby improving the stability of the vehicle.
Drawings
Fig. 1 is a partial structural rear view of embodiment 1 of the vehicle of the invention;
fig. 2 is a partial structural front view of embodiment 1 of the vehicle of the invention;
in the figure: 1-lower frame longitudinal beam, 2-upper frame longitudinal beam, 3-wheel assembly, 4-suspension supporting arm, 5-shock absorber, 61-independent cantilever, 62-front cantilever, 63-rear cantilever, 7-transverse stabilizer bar and 8-stabilizer bar thrust rod.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and 2, in an embodiment 1 of the vehicle according to the present invention, the vehicle includes a frame, a double wishbone suspension connected to the frame, and a wheel assembly 3, the frame includes a lower frame longitudinal beam 1 and an upper frame longitudinal beam 2 arranged in a vertically staggered manner, and the double wishbone suspension includes a suspension support arm 4 connected to the wheel assembly 3, a shock absorber 5 having one end fixed to the suspension support arm 4, and a stabilizer thrust rod 8 having one end connected to the suspension support arm 4 in a ball joint manner and the other end connected to a stabilizer bar 7.
The double-wishbone suspension further comprises an upper cross arm and a lower cross arm which are arranged in the up-down direction, the upper cross arm and the lower cross arm are elastic arms capable of flexibly deforming in the up-down direction, and each elastic arm correspondingly forms an elastic element and a guide element in the double-wishbone suspension. The elastic arm is formed by compounding fiber materials with light weight and certain rigidity and polyurethane, and in the embodiment, the elastic arm is formed by compounding glass fiber and polyurethane. The two cross arms can realize the elastic buffer function of the elastic element through the properties of the materials of the two cross arms, and can also realize the guide function of the guide element through the connection between the wheel assembly 3 and the frame.
Specifically, both the upper cross arm and the lower cross arm adopt a split structure, as shown in fig. 1, the upper cross arm comprises two independent cantilevers 61 symmetrically arranged with a left-right direction as a symmetry axis, one end of each independent cantilever 61 is fixedly connected with the upper frame longitudinal beam 2, the other end of each independent cantilever 61 is hinged with the suspension support arm 4, the structure of each independent cantilever 61 adopts an arc shape, and one ends of the two independent cantilevers 61 hinged with the suspension support arm 4 are close to each other.
The lower cross arm comprises a front suspension arm 62 and a rear suspension arm 63 which are arranged in the front-rear direction, the front suspension arm 62 adopts an arc-shaped structure, one end of the front suspension arm is fixedly connected with the frame side sill 1, and the other end of the front suspension arm is hinged with the suspension support arm 4. The rear suspension 63 is of a linear structure, one end of the rear suspension is fixedly connected with the frame lower longitudinal beam 1, the other end of the rear suspension is hinged with the suspension support arm 4, and the front suspension 62 and the rear suspension 63 in the lower cross arm are longer than the independent suspension 61 because the frame upper longitudinal beam 2 and the frame lower longitudinal beam 1 are arranged in a staggered mode and the frame lower longitudinal beam 1 is arranged in the inner portion. The included angle between the plane of the upper cross arm and the plane of the lower cross arm is 0-5 degrees and 3 degrees in the embodiment.
The vehicle is at the in-process of traveling, when meetting ground unevenness, the wheel assembly 3 appears jumping from top to bottom, wheel assembly 3 will receive suspension support arm 4, shock absorber 5, two elastic arms, stabilizer bar 7 and stabilizer bar thrust rod 8 spacing, and simultaneously, suspension support arm 4 can be along with wheel up-and-down motion, also can drive 7 tip luffing motions of stabilizer bar through stabilizer bar thrust rod 8, drives the up-and-down motion of shock absorber underarm, reaches the damping purpose. The upper cross arm and the lower cross arm guide the wheel assembly 3 and flexibly deform in the vertical direction to have a certain buffering effect, impact transmission generated by vertical jumping of wheels to a vehicle frame is effectively isolated or slowed down, the guiding effect of the two elastic arms and the buffering effect of the elastic element in the prior art are integrated on the two elastic arms, and the arrangement of the elastic element is reduced, so that the mass of the double-cross-arm suspension and the unsprung mass of a vehicle are reduced, and the driving stability and the driving smoothness of the vehicle are improved.
In other embodiments of the vehicle, the included angle between the plane of the upper cross arm and the plane of the lower cross arm can be 1 degree, 2 degrees and the like; the included angle between the plane of the upper cross arm and the plane of the lower cross arm can be larger than 5 degrees.
In other embodiments, the elastic arm can also be made of carbon fiber and polyurethane.
The specific structure of the double wishbone suspension of the embodiment of the present invention is the same as that of the vehicle in any of the above embodiments, and will not be described again here.
Claims (10)
1. Double wishbone suspension is including the last horizontal arm and the lower xarm of following the upper and lower direction and arranging, its characterized in that: the upper cross arm and the lower cross arm are elastic arms capable of flexibly deforming upwards or downwards; one end of the elastic arm close to the frame is used for being fixed on the frame, and the other end of the elastic arm is hinged with a suspension support arm in the double-cross-arm suspension along an axis extending in the front-back direction; each spring arm forms a spring element and a guide element in the double wishbone suspension.
2. The double wishbone suspension of claim 1 wherein: the elastic arm is formed by compounding fiber materials and polyurethane.
3. The double wishbone suspension of claim 2 wherein: the upper cross arm is V-shaped and comprises two independent cantilevers which are symmetrically arranged, and the two independent cantilevers are arc-shaped structures.
4. The double wishbone suspension of claim 2 wherein: the lower cross arm comprises a front cantilever and a rear cantilever which are arranged along the front-back direction, the front cantilever is of an arc-shaped structure, and the rear cantilever is of a straight-line-shaped structure.
5. The double wishbone suspension according to any one of claims 1-4, wherein: the included angle between the plane of the upper cross arm and the plane of the lower cross arm is 0-5 degrees.
6. The vehicle comprises a frame and a double-cross-arm suspension connected to the frame, wherein the double-cross-arm suspension comprises an upper cross arm and a lower cross arm which are arranged along the up-down direction, and is characterized in that: the upper cross arm and the lower cross arm are elastic arms capable of flexibly deforming upwards or downwards; one end of the elastic arm close to the frame is fixed on the frame, and the other end of the elastic arm is hinged with a suspension support arm in the double-cross-arm suspension along an axis extending in the front-back direction; each spring arm forms a spring element and a guide element in the double wishbone suspension.
7. The vehicle according to claim 6, characterized in that: the elastic arm is formed by compounding fiber materials and polyurethane.
8. The vehicle according to claim 7, characterized in that: the upper cross arm is V-shaped and comprises two independent cantilevers which are symmetrically arranged, and the two independent cantilevers are arc-shaped structures.
9. The vehicle according to claim 7, characterized in that: the lower cross arm comprises a front cantilever and a rear cantilever which are arranged along the front-back direction, the front cantilever is of an arc-shaped structure, and the rear cantilever is of a straight-line-shaped structure.
10. The vehicle according to any one of claims 6 to 9, characterized in that: the included angle between the plane of the upper cross arm and the plane of the lower cross arm is 0-5 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372568.8A CN114571934A (en) | 2020-11-30 | 2020-11-30 | Vehicle and double-cross-arm suspension thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372568.8A CN114571934A (en) | 2020-11-30 | 2020-11-30 | Vehicle and double-cross-arm suspension thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114571934A true CN114571934A (en) | 2022-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011372568.8A Pending CN114571934A (en) | 2020-11-30 | 2020-11-30 | Vehicle and double-cross-arm suspension thereof |
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| CN (1) | CN114571934A (en) |
Citations (16)
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|---|---|---|---|---|
| US1563952A (en) * | 1923-10-09 | 1925-12-01 | Barker Gerald | Spring suspension for vehicles |
| JPS6126609U (en) * | 1984-07-23 | 1986-02-17 | 株式会社クボタ | wheel suspension structure |
| DE10006676A1 (en) * | 1999-05-03 | 2000-11-23 | Porsche Ag | Wheel suspension for a front axle of a motor vehicle |
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| CN104960409A (en) * | 2015-05-28 | 2015-10-07 | 东南大学 | Integrated wheel edge driving system equipped with unequal-length double transverse arm suspending frame and capable of reducing unsprung mass |
| US9233588B2 (en) * | 2014-01-14 | 2016-01-12 | Stempf Automotive Industries, Inc. | Strut suspension assembly system |
| CN106170408A (en) * | 2014-05-06 | 2016-11-30 | 宝马股份公司 | Independent suspension for vehicle |
| US20180201319A1 (en) * | 2017-01-19 | 2018-07-19 | Geoffrey William Rogers | Electromechanical devices for controlling vehicle suspension settings |
| CN109070671A (en) * | 2016-05-03 | 2018-12-21 | 宝马股份公司 | Independent suspension for vehicle with the guiding leaf spring element of the wheel made of fibrous composite |
| CN109305003A (en) * | 2018-10-24 | 2019-02-05 | 核心驱动科技（金华）有限公司 | Passenger car and independent suspension system |
| CN110329023A (en) * | 2019-08-12 | 2019-10-15 | 西南交通大学 | A kind of hub motor double cross arm independent suspension |
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2020
- 2020-11-30 CN CN202011372568.8A patent/CN114571934A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1563952A (en) * | 1923-10-09 | 1925-12-01 | Barker Gerald | Spring suspension for vehicles |
| JPS6126609U (en) * | 1984-07-23 | 1986-02-17 | 株式会社クボタ | wheel suspension structure |
| DE10006676A1 (en) * | 1999-05-03 | 2000-11-23 | Porsche Ag | Wheel suspension for a front axle of a motor vehicle |
| JP2004338680A (en) * | 2003-05-19 | 2004-12-02 | Nissan Motor Co Ltd | Suspension device |
| WO2005092644A1 (en) * | 2004-03-25 | 2005-10-06 | Zf Friedrichshafen Ag | Wheel suspension for a steerable vehicle wheel |
| CN101011926A (en) * | 2007-02-12 | 2007-08-08 | 湖南大学 | Vehicle separated suspension |
| CN201415596Y (en) * | 2009-06-07 | 2010-03-03 | 陈建生 | Vehicle front wheel independent suspension device |
| CN102431405A (en) * | 2011-10-26 | 2012-05-02 | 隆鑫通用动力股份有限公司 | Vehicle double withbone arm type independent suspension system |
| CN104057795A (en) * | 2013-03-20 | 2014-09-24 | 上海同捷科技股份有限公司 | Automotive double-wishbone independent suspension mechanism |
| US9233588B2 (en) * | 2014-01-14 | 2016-01-12 | Stempf Automotive Industries, Inc. | Strut suspension assembly system |
| CN106170408A (en) * | 2014-05-06 | 2016-11-30 | 宝马股份公司 | Independent suspension for vehicle |
| CN104960409A (en) * | 2015-05-28 | 2015-10-07 | 东南大学 | Integrated wheel edge driving system equipped with unequal-length double transverse arm suspending frame and capable of reducing unsprung mass |
| CN109070671A (en) * | 2016-05-03 | 2018-12-21 | 宝马股份公司 | Independent suspension for vehicle with the guiding leaf spring element of the wheel made of fibrous composite |
| US20180201319A1 (en) * | 2017-01-19 | 2018-07-19 | Geoffrey William Rogers | Electromechanical devices for controlling vehicle suspension settings |
| CN109305003A (en) * | 2018-10-24 | 2019-02-05 | 核心驱动科技（金华）有限公司 | Passenger car and independent suspension system |
| CN110329023A (en) * | 2019-08-12 | 2019-10-15 | 西南交通大学 | A kind of hub motor double cross arm independent suspension |
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