CN203268122U - Automobile four-wheel steering system - Google Patents
Automobile four-wheel steering system Download PDFInfo
- Publication number
- CN203268122U CN203268122U CN2013202863181U CN201320286318U CN203268122U CN 203268122 U CN203268122 U CN 203268122U CN 2013202863181 U CN2013202863181 U CN 2013202863181U CN 201320286318 U CN201320286318 U CN 201320286318U CN 203268122 U CN203268122 U CN 203268122U
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- China
- Prior art keywords
- steering
- automobile
- wheel
- mechanisms
- trapezoidal
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- Expired - Fee Related
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- 230000001429 stepping Effects 0.000 claims abstract description 9
- 230000000875 corresponding Effects 0.000 claims abstract description 4
- 210000001331 Nose Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses an automobile four-wheel steering system which comprises an automobile base plate and two trapezoidal steering mechanisms which are arranged on the automobile base plate. The two trapezoidal steering mechanisms drive front wheels and rear wheels of an automobile to be steered respectively. The two trapezoidal steering mechanisms are driven through corresponding crank and rocker mechanisms and stepping motors respectively. A steering knuckle arm fixed on one trapezoidal arm of each trapezoidal steering mechanism is hinged to each crank and rocker mechanism through a steering straight pulling rod. The two trapezoidal steering mechanisms are respectively provided with steering knuckles, wherein the steering knuckles are connected with the front wheels and the rear wheels of the automobile. The stepping motors are connected with a control system of the automobile. According to the automobile four-wheel steering system, the turning radius of the automobile is reduced, the operating flexibility and the operating stability of the automobile are improved, the accident occurrence rate is reduced to the greatest degree, and the safety of the driver and passengers is ensured.
Description
Technical field
The utility model relates to a kind of steering swivel system, relates to specifically a kind of four-wheel steering system of automobile.
Background technology
Since 19th-century, front-wheel steering is the major way of motor turning always, and this steering mode that is derived from carriage is used as natural steering mode.But when traditional nose wheel steering has low speed, steering response is slow, and turn radius is large, turn to dumb, the shortcoming such as during high speed directional balance is poor.
The utility model content
The utility model is in order to solve above-mentioned technical matters, a kind of automobile four-wheel steering swivel system is provided, it is simple in structure, reduced the turn inside diameter radius, flexibility of operation and the stability of vehicle have been improved, the incidence of at utmost reduction accident has been guaranteed navigating mate and passenger's safety, and economic benefit can be considerable.
the technical scheme that the utility model adopts is: a kind of automobile four-wheel steering swivel system, comprise vehicle floor and two groups of Ackerman steering mechanisms that are arranged on vehicle floor, two groups of Ackerman steering mechanisms drive respectively front-wheel and the rear-axle steering of automobile, two groups of Ackerman steering mechanisms are driven by corresponding quadric linkage and stepping motor respectively, track arm fixing on a tie rod arm of described Ackerman steering mechanism is hinged by steering drag link and quadric linkage, be respectively equipped with the steering swivel that is connected with trailing wheel with the front-wheel of automobile on described two groups of Ackerman steering mechanisms, described stepping motor is connected with the control system of automobile.
The utility model also is provided with steering angle sensor and the car speed sensor that is connected with the control system of automobile, and steering angle sensor and car speed sensor are associated with vehicle steering and automotive wheel respectively.
Ackerman steering mechanism described in the utility model comprise to intermediate rod and respectively with two tie rod arms hinged to intermediate rod two ends.
The beneficial effects of the utility model: two quadric linkages of control system control step motor-driven rotate simultaneously, have realized that four wheels synchronously turn to, and during the front and back wheel counter-steering, reduce turn radius; When front and back wheel turns in the same way, improve that automobile carries out lane changing when running at high speed or the operational stability when turning to, flexibility of operation and the stability of vehicle have been improved, control system is automatically calibrating wheel angle of turn also, adjust the wheel steering time, so both reduced turn radius, also can avoid simultaneously the larger yaw of vehicle, the incidence of at utmost reduction accident has been guaranteed navigating mate and passenger's safety.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Mark in figure: 1, vehicle floor, 2, front-wheel, 3, trailing wheel, 4, quadric linkage, 5, Ackerman steering mechanism, 6, track arm, 7, steering drag link, 8, steering swivel.
The specific embodiment
as shown in the figure, a kind of automobile four-wheel steering swivel system, comprise vehicle floor 1 and two groups of Ackerman steering mechanisms 5 that are arranged on vehicle floor 1, front-wheel 2 and trailing wheel 3 that two groups of Ackerman steering mechanisms 5 drive respectively automobile turn to, two groups of Ackerman steering mechanisms 5 are driven by corresponding quadric linkage 4 and stepping motor respectively, track arm 6 fixing on a tie rod arm of described Ackerman steering mechanism 5 is hinged by steering drag link 7 and quadric linkage 4, be respectively equipped with on described two groups of Ackerman steering mechanisms 5 with the front-wheel 2 of automobile and be connected the steering swivel 8 that is connected with trailing wheel, described stepping motor is connected with the control system of automobile, the utility model also is provided with steering angle sensor and the car speed sensor that is connected with the control system of automobile, steering angle sensor and car speed sensor are associated with vehicle steering and automotive wheel respectively, described Ackerman steering mechanism 5 comprise to intermediate rod and respectively with two tie rod arms hinged to intermediate rod two ends.
The utility model in use, control two stepping motor driving crank rocker mechanisms 4 by control system and be rotated certain angle, rotatablely moving of quadric linkage 4 is converted into the back and forth movement of steering drag link 7 in frame, frame is fixed on vehicle floor 1, the back and forth movement of steering drag link 7 drives the motion of track arm 6, and then motion is transferred on the Ackermann steering gear structure 5 of captiveing joint with track arm 6, Ackermann steering gear structure 5 drives steering swivel 8 motions, thereby drive front-wheel 2 and trailing wheel 3 are turned simultaneously.
In the utility model, two quadric linkages of control system control step motor-driven rotate simultaneously, have realized that four wheels synchronously turn to, and during the front and back wheel counter-steering, reduce turn radius; When front and back wheel turns in the same way, improve that automobile carries out lane changing when running at high speed or the operational stability when turning to, flexibility of operation and the stability of vehicle have been improved, control system is automatically calibrating wheel angle of turn also, adjust the wheel steering time, so both reduced turn radius, also can avoid simultaneously the larger yaw of vehicle, the incidence of at utmost reduction accident has been guaranteed navigating mate and passenger's safety.
Claims (3)
1. automobile four-wheel steering swivel system, comprise vehicle floor (1) and two groups of Ackerman steering mechanisms (5) that are arranged on vehicle floor (1), front-wheel (2) and trailing wheel (3) that two groups of Ackerman steering mechanisms (5) drive respectively automobile turn to, it is characterized in that: two groups of Ackerman steering mechanisms (5) are driven by corresponding quadric linkage (4) and stepping motor respectively, track arm (6) fixing on a tie rod arm of described Ackerman steering mechanism (5) is hinged by steering drag link (7) and quadric linkage (4), be respectively equipped with on described two groups of Ackerman steering mechanisms (5) with the front-wheel (2) of automobile and be connected 3 with trailing wheel) steering swivel (8) that is connected, described stepping motor is connected with the control system of automobile.
2. a kind of automobile four-wheel steering swivel system as claimed in claim 1, it is characterized in that: also be provided with the steering angle sensor and the car speed sensor that are connected with the control system of automobile, steering angle sensor and car speed sensor are associated with vehicle steering and automotive wheel respectively.
3. a kind of automobile four-wheel steering swivel system as claimed in claim 1 is characterized in that: described Ackerman steering mechanism (5) comprise to intermediate rod and respectively with two tie rod arms hinged to intermediate rod two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202863181U CN203268122U (en) | 2013-05-24 | 2013-05-24 | Automobile four-wheel steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202863181U CN203268122U (en) | 2013-05-24 | 2013-05-24 | Automobile four-wheel steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203268122U true CN203268122U (en) | 2013-11-06 |
Family
ID=49498583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202863181U Expired - Fee Related CN203268122U (en) | 2013-05-24 | 2013-05-24 | Automobile four-wheel steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203268122U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824981A (en) * | 2015-01-08 | 2016-08-03 | 烟台汽车工程职业学院 | ADAMS-based four-wheel steering vehicle modeling method |
| CN107235073A (en) * | 2017-05-25 | 2017-10-10 | 太原理工大学 | Active rear steer mechanism based on toggle |
| CN107813867A (en) * | 2016-09-14 | 2018-03-20 | 比亚迪股份有限公司 | Steering and vehicle |
| CN110588765A (en) * | 2019-08-28 | 2019-12-20 | 江苏大学 | Four-wheel multi-mode steering system of distributed drive automobile and control method |
-
2013
- 2013-05-24 CN CN2013202863181U patent/CN203268122U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824981A (en) * | 2015-01-08 | 2016-08-03 | 烟台汽车工程职业学院 | ADAMS-based four-wheel steering vehicle modeling method |
| CN107813867A (en) * | 2016-09-14 | 2018-03-20 | 比亚迪股份有限公司 | Steering and vehicle |
| CN107235073A (en) * | 2017-05-25 | 2017-10-10 | 太原理工大学 | Active rear steer mechanism based on toggle |
| CN110588765A (en) * | 2019-08-28 | 2019-12-20 | 江苏大学 | Four-wheel multi-mode steering system of distributed drive automobile and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140524 |