CN107984994A - A kind of automobile rear independent suspension with active auxiliary steering mechanism - Google Patents
A kind of automobile rear independent suspension with active auxiliary steering mechanism Download PDFInfo
- Publication number
- CN107984994A CN107984994A CN201610947874.7A CN201610947874A CN107984994A CN 107984994 A CN107984994 A CN 107984994A CN 201610947874 A CN201610947874 A CN 201610947874A CN 107984994 A CN107984994 A CN 107984994A
- Authority
- CN
- China
- Prior art keywords
- steering mechanism
- knuckle
- arm
- automobile rear
- independent suspension
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 239000000725 suspension Substances 0.000 title claims abstract description 27
- 230000008093 supporting effect Effects 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 5
- 239000007875 V-40 Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/04—Steering gears mechanical of worm type
- B62D3/06—Steering gears mechanical of worm type with screw and nut
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
-
- 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
- B60G2200/445—Self-steered wheels
Abstract
A kind of automobile rear independent suspension with active auxiliary steering mechanism, including independent rear suspension main body and knuckle, it is characterised in that：The steering mechanism being fixed on subframe is further included, two free ends of steering mechanism are connected by prenex control arm with two knuckles, and the knuckle is also connected by flare control arm with subframe respectively, is connected by towing arm with chassis runner；Spring supporting arm is further included, the bushing that the spring supporting arm is set by both ends is connected with knuckle and subframe respectively.The present invention can effectively improve the steering flexibility that automobile is run at a low speed, improve bend stability during galloping, and then the security run at high speed is lifted, while active assisted diversion provides help for the automatic Pilot of automobile with intelligent driving, vehicle is had more technology sense and driving pleasure.
Description
Technical field
The present invention relates to a kind of automobile chassis independent rear suspension, more particularly to a kind of with active auxiliary steering mechanism
Automobile rear independent suspension.
Background technology
The wheelbase that Hyundai Motor constantly lengthens for in-car bring it is good comfortable take space, while vehicle performance,
Turn, park etc. brings certain negative effect, and wheelbase lengthens the increasing that must bring turning diameter, adds vehicle
Low speed is turned or the difficulty for process of parking；During the lane change or turning run at high speed, traditional independent rear suspension exists vehicle
Axle load is shifted with being also easy to produce sideslip under the action of lateral force, and then causes the generation of car accident.The master of automobile rear independent suspension
Dynamic auxiliary turning function can effectively make up the influence caused by turn inside diameter flexibility after wheelbase increase, while automobile high-speed row
Tire sideslip can effectively be suppressed by trailing wheel is produced corner in the same direction with front-wheel when sailing, and effectively improve the stability and safety of tempo turn
Property.
Automobile rear independent suspension structure connects swing arm and knuckle and subframe usually using rubber bushing in the prior art,
When vehicle high speed is turned, wheel produces larger lateral force, and rubber bushing deformation makes wheel generation be unfavorable for the attached of turn inside diameter
Add corner, vehicle is increased oversteering trend, and then the probability for adding vehicle unstability and resulting in an automobile accident.
To improve the technology sense and driving pleasure of vehicle, Hyundai Motor is continuously increased auxiliary and drives function, and it is tired to alleviate driving
Labor simultaneously reduces the car accident caused by driving efficiency deficiency.Current auxiliary drives function and uses front-wheel active steering control
System realizes the functions such as automatic parking, adaptive cruise, automatic Pilot, the limitation arranged by foresteerage gear, can be real
Existing turn inside diameter angle and high-performance cruise stability is limited, the enjoyment that greatly limit the lifting of vehicle performance and control.
The content of the invention
The purpose of the present invention is：A kind of automobile rear independent suspension with active auxiliary steering mechanism is provided, it is existing to solve
There is the problem of in technology.
To achieve the above object, the present invention takes following technical proposals：A kind of automobile with active auxiliary steering mechanism
Independent rear suspension, including independent rear suspension main body and knuckle, technical points are：Further include to be fixed on subframe and turn
To mechanism, two free ends of steering mechanism are connected by prenex control arm with two knuckles, and the knuckle is also respectively by outer
The control arm that inclines is connected with subframe, is connected by towing arm with chassis runner；Further include spring supporting arm, the spring supporting arm
The bushing set by both ends is connected with knuckle and subframe respectively.
Further：The steering mechanism includes driving motor, with chlamydate leading screw, in the driving lower band of driving motor
The nut of dynamic guide screw movement；The both ends of the leading screw respectively with corresponding prenex control arm hinged connection；The shell is equipped with
Installation bolt hole.
Further：It is connected between prenex control arm and corresponding knuckle by oscillating bearing.
Further：Flare control arm is connected with subframe by rubber bushing.
Further：Towing arm one end is bolted on knuckle, and the other end is indulged by rubber bushing and vehicle body
Beam is connected.
Further：Further include the control unit of control steering mechanism operation.
Further：Described control unit is the controller being located on steering wheel tubular pipe, according to the size of steering wheel angle
Corresponding electric current is provided for driving motor.
Further：Described control unit is automatic controller, receives vehicle speed data V and steering wheel angle data α, according to
Equation below controls the size to driving motor output current I：I=C*（V-40）*α/360；C is constant in formula.
The beneficial effects of the invention are as follows：The present invention can effectively improve the steering flexibility that automobile is run at a low speed, and improve vapour
The bend stability of overall height speed when driving, and then the security run at high speed is lifted, while active assisted diversion is oneself of automobile
Dynamic drive provides help with intelligent driving, vehicle is had more technology sense and driving pleasure.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of the present invention；
Fig. 2 is the another structure diagram of the present invention；
Fig. 3 is steering mechanism of the present invention and subframe connection diagram；
Fig. 4 is prenex control arm of the invention and leading screw, the structure diagram of steering knuckle connecting structure；
Fig. 5 is steering mechanism's structure diagram of the present invention；
Fig. 6 is towing arm structure diagram of the present invention；
Fig. 7 is flare control arm structure diagram of the present invention；
Fig. 8 is spring supporting arm configuration schematic diagram of the present invention.
Description of reference numerals
1 knuckle；2 flare control arms；21 rubber bushings（Connect flare control arm and knuckle, subframe）；3 subframes；4 drag
Drag arm；41 rubber bushings（Connect towing arm and chassis runner）；42 bolts hole（Connect towing arm and knuckle）；5 spring supportings
Arm；51 rubber bushings（Connecting spring support arm and knuckle, subframe）；6 prenex control arms；61 ball pins（Leading screw is connected with before
Beam control arm）；62 oscillating bearings（The prenex control arm of connection and knuckle）；7 steering mechanism；71 installation bolt holes（Connection turns to
Mechanism and subframe）；72 driving motors；73 leading screws；74 nut bodies；8 control units.
Embodiment
Elaborate below in conjunction with attached drawing to embodiment：
It is a kind of automobile rear independent suspension with active auxiliary steering mechanism provided by the present invention as shown in figures 1-8, including
Independent rear suspension main body and knuckle 1, further include the steering mechanism 7 being fixed on subframe 3, and two free ends of steering mechanism lead to
Cross prenex control arm 6 with two knuckles to be connected, the knuckle is also connected by flare control arm 2 with subframe respectively, is passed through
Towing arm 4 is connected with chassis runner；Spring supporting arm 5 is further included, the rubber that the spring supporting arm is set by its both ends serves as a contrast
Set 51 is connected with knuckle and subframe respectively.
Further：The steering mechanism includes driving motor 72, with chlamydate leading screw 73, in the driving of driving motor
The lower nut 74 for driving guide screw movement；The both ends of the leading screw i.e. two free ends of steering mechanism are equipped with ball pin 61, respectively
It is in mating connection with the bulb of corresponding prenex control arm one end；The shell is equipped with installation bolt hole 71, will be turned with bolt
It is fixed on to mechanism on vehicle body；The nut can be connected by belt with motor, and can be under motor drive along axial-rotation, its
It is relatively fixed with the position of shell motionless, specifically available position-limit mechanism or card slot are limited.
Preferably：It is connected between prenex control arm and corresponding knuckle by oscillating bearing 62.
Preferably：Flare control arm is connected with subframe by rubber bushing 21.
Preferably：Towing arm 4 is sheet sheet metal structural, on the premise of rear suspension longitudinal rigidity is ensured, can pass through rubber
Bushing is deformed realizes that trailing wheel low-angle turns to metal plate deformation, and its one end is equipped with bolt hole 42, is fixed in and turned by bolt
To on section, the other end is connected by rubber bushing 41 with chassis runner.
Preferably：Further include the control unit 8 of control steering mechanism operation.
Preferably：Described control unit is the controller being located on steering wheel tubular pipe, such as rheostat, according to side
To the size of disk corner corresponding electric current is provided for driving motor.
Preferably：Described control unit is automatic controller, vehicle speed data V and steering wheel angle data α is received, according to such as
Lower formula controls the size to driving motor output current I：I=C*（V-40）*α/360；C is constant in formula, and is positive number；I
Value when being positive number or negative, represent the rotation direction of motor, that is, the direction of rear-axle steering, now setting is less than 40 when speed
Kilometer/hour when, I is negative, corresponding trailing wheel and front-wheel reverse deflection.
To improve the steering flexibility run at a low speed and the cornering stiffnesses and security run at high speed at the same time, definition is worked as
When speed is less than 40 kilometers/hour, trailing wheel and front-wheel reverse deflection, and trailing wheel is judged according to information such as speed, steering wheel angles
Steering angle, speed is lower, and rear wheel steering angle is bigger, and maximum can reach 3 degree, can significantly smaller turn inside diameter diameter, lifting
The sensitivity that low speed is turned；When speed is more than 40 kilometers/hour, less than 80 kilometers/hour when driving at moderate speed, trailing wheel is with before
Wheel deflection, and rear wheel steering angle is judged according to information such as speed, steering wheel angles in the same direction, and rear wheel steering angle is up to
1.5 degree, understeer trend when increase vehicle drives at moderate speed, improves bend stability；When speed it is too fast more than 80 kilometers/it is small
In the case of, it is proposed that close the function.
During specific works, the real time information such as the speed that is collected according to vehicle running state, steering wheel angle, passes through control
The current of electric of required trailing wheel assisted diversion is calculated in unit, and driving motor driving nut body drives leading screw to produce and axially moves
Dynamic, leading screw both ends produce movement, left and right turn section in the same direction by the prenex control arm in ball pin drive left and right and are distinguished by oscillating bearing
Connected with the prenex control arm other end in corresponding left and right, and drive knuckle to be rotated along the virtual stub of independent rear suspension, make car
Wheel realizes that low-angle turns to.Because of kingpin axis of the independent rear suspension mechanism without necessary being, wheel steering passes through suspension machine
The elastic deformation of rubber bushing is realized in structure, so wheel steering angle can reach 3 degree；
Trailing wheel assisted diversion can be by the automatic parking of the logic control combination prior art, adaptive cruise, automatic in the present invention
The functions such as driving, flexibility, stability, installation and the driving pleasure of vehicle are further lifted by the active control of trailing wheel.
Part that the present invention does not relate to is same as the prior art or is realized using the prior art.
The present invention can effectively improve the steering flexibility that automobile is run at a low speed, and bend when improving galloping is steady
It is qualitative, and then the security run at high speed is lifted, while active assisted diversion provides for the automatic Pilot of automobile with intelligent driving
Help, vehicle is had more technology sense and driving pleasure.
Above description and attached drawing should be construed as exemplary, rather than limitation of the present invention.The technology of the industry
Personnel can carry out various changes and modifications, these changes under the premise of the spirit and scope of the present invention are not departed to the present invention
Included with improving in protection scope of the present invention.The scope of the present invention is by appended claims and its equivalent circle
It is fixed.
Claims (8)
1. a kind of automobile rear independent suspension with active auxiliary steering mechanism, including independent rear suspension main body and knuckle, its
It is characterized in that：The steering mechanism being fixed on subframe is further included, two free ends of steering mechanism pass through prenex control arm and two
Knuckle is connected, and the knuckle is also connected by flare control arm with subframe respectively, passes through towing arm and chassis runner phase
Even；Spring supporting arm is further included, the bushing that the spring supporting arm is set by both ends is connected with knuckle and subframe respectively.
2. the automobile rear independent suspension according to claim 1 with active auxiliary steering mechanism, it is characterised in that：It is described
Steering mechanism includes driving motor, with chlamydate leading screw, the nut of drive guide screw movement under the driving of driving motor；It is described
The both ends of leading screw respectively with corresponding prenex control arm hinged connection；The shell is equipped with installation bolt hole.
3. the automobile rear independent suspension according to claim 1 or 2 with active auxiliary steering mechanism, it is characterised in that：
It is connected between prenex control arm and corresponding knuckle by oscillating bearing.
4. the automobile rear independent suspension according to claim 1 or 2 with active auxiliary steering mechanism, it is characterised in that：
Flare control arm is connected with subframe by rubber bushing.
5. the automobile rear independent suspension according to claim 1 or 2 with active auxiliary steering mechanism, it is characterised in that：
Towing arm one end is bolted on knuckle, and the other end is connected by rubber bushing with chassis runner.
6. the automobile rear independent suspension according to claim 1 or 2 with active auxiliary steering mechanism, it is characterised in that：
Further include the control unit of control steering mechanism operation.
7. the automobile rear independent suspension according to claim 6 with active auxiliary steering mechanism, it is characterised in that：It is described
Control unit is the controller being located on steering wheel tubular pipe, and corresponding electricity is provided for driving motor according to the size of steering wheel angle
Stream.
8. the automobile rear independent suspension according to claim 6 with active auxiliary steering mechanism, it is characterised in that：It is described
Control unit is automatic controller, receives vehicle speed data V and steering wheel angle data α, is controlled according to equation below and gives driving electricity
The size of machine output current I：I=C*（V-40）*α/360；C is constant in formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610947874.7A CN107984994A (en) | 2016-10-27 | 2016-10-27 | A kind of automobile rear independent suspension with active auxiliary steering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610947874.7A CN107984994A (en) | 2016-10-27 | 2016-10-27 | A kind of automobile rear independent suspension with active auxiliary steering mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107984994A true CN107984994A (en) | 2018-05-04 |
Family
ID=62028281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610947874.7A Pending CN107984994A (en) | 2016-10-27 | 2016-10-27 | A kind of automobile rear independent suspension with active auxiliary steering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107984994A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895827A (en) * | 2021-03-31 | 2021-06-04 | 东风柳州汽车有限公司 | Trailing arm type four-bar linkage suspension and automobile |
| WO2023179455A1 (en) * | 2022-03-25 | 2023-09-28 | 北京车和家汽车科技有限公司 | Vehicle body steering assembly, and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950013883A (en) * | 1993-11-19 | 1995-06-15 | 한승준 | Rear Wheel Steering System of Vehicle Using DC Motor and Lead Screw |
| CN2767225Y (en) * | 2004-08-11 | 2006-03-29 | 上海比亚迪有限公司 | Independent suspension device of back wheel multiple link rod of mounting vehicle |
| KR20120062272A (en) * | 2010-12-06 | 2012-06-14 | 현대자동차주식회사 | Rear steering system of vehicle |
| CN203580551U (en) * | 2013-11-26 | 2014-05-07 | 广州汽车集团股份有限公司 | Automobile and rear independent suspension thereof |
| CN204915164U (en) * | 2015-09-11 | 2015-12-30 | 广州汽车集团股份有限公司 | Suspension system and have its vehicle behind vehicle |
| CN206264731U (en) * | 2016-10-27 | 2017-06-20 | 华晨汽车集团控股有限公司 | A kind of automobile rear independent suspension with active auxiliary steering mechanism |
-
2016
- 2016-10-27 CN CN201610947874.7A patent/CN107984994A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950013883A (en) * | 1993-11-19 | 1995-06-15 | 한승준 | Rear Wheel Steering System of Vehicle Using DC Motor and Lead Screw |
| CN2767225Y (en) * | 2004-08-11 | 2006-03-29 | 上海比亚迪有限公司 | Independent suspension device of back wheel multiple link rod of mounting vehicle |
| KR20120062272A (en) * | 2010-12-06 | 2012-06-14 | 현대자동차주식회사 | Rear steering system of vehicle |
| CN203580551U (en) * | 2013-11-26 | 2014-05-07 | 广州汽车集团股份有限公司 | Automobile and rear independent suspension thereof |
| CN204915164U (en) * | 2015-09-11 | 2015-12-30 | 广州汽车集团股份有限公司 | Suspension system and have its vehicle behind vehicle |
| CN206264731U (en) * | 2016-10-27 | 2017-06-20 | 华晨汽车集团控股有限公司 | A kind of automobile rear independent suspension with active auxiliary steering mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895827A (en) * | 2021-03-31 | 2021-06-04 | 东风柳州汽车有限公司 | Trailing arm type four-bar linkage suspension and automobile |
| WO2023179455A1 (en) * | 2022-03-25 | 2023-09-28 | 北京车和家汽车科技有限公司 | Vehicle body steering assembly, and vehicle |
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