CN114789751A - Rear steering height limiting device and vehicle - Google Patents
Rear steering height limiting device and vehicle Download PDFInfo
- Publication number
- CN114789751A CN114789751A CN202210637431.3A CN202210637431A CN114789751A CN 114789751 A CN114789751 A CN 114789751A CN 202210637431 A CN202210637431 A CN 202210637431A CN 114789751 A CN114789751 A CN 114789751A
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- rear steering
- steering
- switch
- suspension
- limiting device
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- 239000000725 suspension Substances 0.000 claims abstract description 49
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
-
- 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
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
-
- 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
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
-
- 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
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/10—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of power unit
- B62D5/12—Piston and cylinder
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention provides a rear steering height limiting device and a vehicle, wherein the rear steering height limiting device comprises a height sensor and a rear steering controller, the height sensor is arranged on a main reducer frame, a rocker arm is arranged on the height sensor, and the rocker arm is connected with a control arm on a rear wheel; the rear steering controller is used for receiving suspension travel information transmitted by the height sensor; when the suspension stroke information monitored by the height sensor is in a preset interval, the rear steering controller controls the power element to start, and the power element pushes the steering rod system to drive the rear wheel to rotate, so that the steering of the whole vehicle is realized. According to the invention, the use working condition of the rear steering system is limited, so that the envelope of the rear wheel of the vehicle is small, the avoidance design of the vehicle body structure on the envelope of the rear wheel is reduced, the wheelbase is minimized, the space of the vehicle passenger is enlarged, and the weight of the whole vehicle is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of automobile part manufacturing, in particular to a rear steering height limiting device and a vehicle.
Background
The rear steering technology is a steering technology which is gradually used by the current vehicle, the current rear steering technology generally adopts a hydraulic power rear steering technology, the steering height is limited in the rear steering control technology, the integral envelope of the rear wheel is further overlarge, the avoidance design of the vehicle body structure to the envelope is more, the weight of the whole vehicle is increased, the space of a passenger compartment is small, and the passenger experience is poor.
Disclosure of Invention
The embodiment of the invention provides a rear steering height limiting device and a vehicle, and aims to solve the problems in the background art.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a rear steering height limiting device, including:
the height sensor is arranged on the main reducer frame, a rocker arm is arranged on the height sensor, and the rocker arm is connected with a control arm on the rear wheel; and
a rear steering controller for receiving suspension travel information transmitted by the height sensor;
when the suspension stroke information monitored by the height sensor is in a preset interval, the rear steering controller controls the power element to start, and the power element pushes the steering rod system to drive the rear wheel to rotate, so that the steering of the whole vehicle is realized.
The invention is further configured to: the height sensor is used for monitoring the swing arm angle information of the upper control arm, converting the swing arm angle information into suspension travel information and transmitting the suspension travel information to the rear steering controller.
The invention is further configured to: the suspension stroke comprises a suspension up-jump stroke and a suspension down-jump stroke, the upper limit value of the suspension up-jump stroke is A, the lower limit value of the suspension down-jump stroke is B, and the interval value of the preset interval is (a, B); wherein a is less than A; b is less than B.
The invention is further configured to: the rear steering controller is electrically connected with a switching element for controlling the operation of the rear steering controller.
The invention is further configured to: the switch elements include a rear steering switch, a rear steering right switch, and a rear steering left switch.
The invention is further configured to: when the rear steering controller receives starting signals of the rear steering switch and the rear steering right-turn switch and suspension travel information transmitted by the height sensor is in a preset interval, the rear steering controller controls a power element to start so as to realize the right turn of the whole vehicle;
and when the rear steering controller receives starting signals of the rear steering switch and the rear steering left-turn switch and suspension travel information transmitted by the height sensor is within a preset interval, the rear steering controller controls a power element to start so as to realize the left turn of the whole vehicle.
The invention is further configured to: when the straight-line driving condition is met, the rear steering controller controls the centering element to start, so that the centering element pushes the steering rod system to drive the rear wheel to be aligned.
The invention is further configured to: and when the rear steering controller receives the starting signal of the rear steering switch and does not receive the starting signals of the rear steering left switch and the rear steering right switch, the condition of straight line driving is met.
The invention is further configured to: the power element is a power cylinder, the centering element is a centering cylinder, and the power cylinder and the centering cylinder are used for pushing the steering rod system so as to control the rotation of the rear wheel.
In a second aspect, embodiments of the present invention provide a vehicle including a rear steering height limiting device as described above.
In summary, the beneficial effects of the invention are as follows:
compared with the prior art, in the embodiment of the invention, the rear steering height limiting device limits the use working condition of the rear steering system, so that the envelope of the rear wheels of the vehicle is small, the avoiding design of the vehicle body structure for the envelope of the rear wheels can be reduced, the wheelbase can be minimized, the space of passengers of the vehicle can be enlarged, and the weight of the whole vehicle can be reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic view of an installation of a height sensor of a rear steering height limiting device according to an embodiment of the present invention;
FIG. 2 is a schematic overall structural diagram of a rear steering height limiting device according to an embodiment of the present invention;
fig. 3 is a schematic signal transmission diagram of a rear steering height limiting device according to an embodiment of the present invention.
In the figure: 1. an upper control arm; 2. a height sensor; 21. a rocker arm; 3. a main subtraction frame; 4. a steering rod system; 5. a power cylinder; 6. centering the cylinder; 7. a rear steering switch; 8. a rear steering right turn switch; 9. a rear steering left-turn switch; 10. and a rear steering controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The invention provides a rear steering height limiting device.
As shown in fig. 1 to 3, in an embodiment of the present invention, the rear steering height limiting device includes:
the height sensor 2 is mounted on the main reducing frame 3, the height sensor 2 is provided with a rocker arm 21, and the rocker arm 21 is connected with the control arm 1 on the rear wheel; a rear steering controller 10, wherein the rear steering controller 10 is used for receiving the suspension stroke information transmitted by the height sensor 2;
when the suspension stroke information monitored by the height sensor 2 is in a preset interval, the rear steering controller 10 controls the power element to start, and the power element pushes the steering rod system 4 to drive the rear wheel to rotate, so that the steering of the whole vehicle is realized.
Specifically, in order to optimize the size of the whole vehicle and reduce the weight of the whole vehicle, the invention limits the use condition of the rear steering system of the vehicle, namely the limit of the rear wheel suspension of the rear steering system in the height direction of the whole vehicle, and has the advantages that the envelope of the rear wheel, namely the tire motion envelope, is an envelope formed by considering the space position occupied by the tire when the wheel jumps along with the suspension and moves in steering under various working conditions, the size of the envelope determines the shapes of the wheel cover and the inner cavity of the fender, and the adjustment of the wheel track developed by driving the whole vehicle framework and the minimum turning diameter of the whole vehicle has non-negligible influence in the design process, so the envelope of the rear wheel of the vehicle is reduced, the avoiding design of the vehicle body structure to the envelope of the rear wheel can be reduced, the axle distance can be minimized, and the space of a vehicle passenger can be increased, the weight of the whole vehicle can be reduced, and the applicability, the practicability and the importance of the weight-reducing device are self-evident.
In some embodiments, as shown in fig. 1, the body of the height sensor 2 is mounted on the main suspension frame 3, the rocker arm 21 is hinged to the upper control arm 1, the swing arm angle information of the upper control arm 1 can be monitored through the displacement of the rocker arm 21, the swing arm angle information is converted into suspension stroke information and is transmitted to the rear steering controller 10, and the rear steering controller 10 determines whether rear wheel steering is possible according to the received suspension stroke information, so as to achieve limitation on the steering height of the rear wheel steering.
Further, in some embodiments, the suspension travel includes a suspension up-stroke and a suspension down-stroke, and it is understood that the suspension, i.e., the vehicle suspension, is a connecting portion of the vehicle chassis and the bracket supporting the vehicle body. Because the utility model has the functions of shock absorption and anti-side-tipping, a certain telescopic distance is provided; the suspension stroke refers to the sliding distance from the lowest point of the telescopic distance for descending to the highest point of the distance for ascending. Further, if the upper limit value of the suspension up-jump stroke is a and the lower limit value of the suspension down-jump stroke is B, the interval value of the preset interval may be (a, B); wherein, the value A can be preferably 95mm, the value B can be preferably-85 mm, and a is less than A; b is less than B; a. the specific value of B is obtained in the interval of (A, B), and can be preset according to different requirements of different vehicle types, and is not specifically limited here. It can be understood that, in the embodiment of the present invention, the upper limit of the upper jump stroke of the rear wheel suspension is a, and the lower limit of the lower jump stroke of the rear wheel suspension is B, during actual operation, when the suspension stroke information of the rear wheel suspension is within the (a, B) interval, the limitation of rear wheel steering can be satisfied, and the rear steering controller 10 can control the rear wheel to steer.
In some embodiments, the rear steering controller 10 is electrically connected to a switching element for controlling the operation of the rear steering controller 10. Further, as shown in fig. 3, the switch elements include a rear steering switch 7, a rear steering right switch 8, and a rear steering left switch 9. The switching elements are disposed in the vicinity of the steering wheel in an area that is easy for the driver to operate, so as to transmit the intention of the driver to the rear steering controller 10 in time. Further, in some embodiments, as shown in fig. 2, the power element is a power cylinder 5, the centering element is a centering cylinder 6, and the power cylinder 5 and the centering cylinder 6 are steering actuators of the rear steering controller 10, and are used for pushing the rear wheel steering linkage 4 to control the rotation of the rear wheels. In the specific control process, a driver can turn on different steering switches according to real-time road conditions to realize corresponding steering control of the rear wheels.
Specifically, when the rear steering controller 10 receives starting signals of the rear steering switch 7 and the rear steering right-turn switch 8 and suspension travel information transmitted by the height sensor 2 is within a preset interval, the rear steering controller 10 controls a power element to start so as to realize right turning of the whole vehicle; when the rear steering controller 10 receives starting signals of the rear steering switch 7 and the rear steering left-turn switch 9 and suspension travel information transmitted by the height sensor 2 is within a preset interval, the rear steering controller 10 controls a power element to start so as to realize left turning of the whole vehicle. It can be understood that if it is desired to achieve the steering of the rear wheels (i.e. the left or right steering of the rear wheels), the control route is that the driver presses the corresponding steering switch, i.e. the rear steering left switch 9 or the rear steering right switch 8 is continuously pressed after the rear wheel steering switch is pressed; and then the rear steering controller 10 judges whether the suspension jumps up or down in a preset interval according to the suspension travel information transmitted by the height sensor 2, and only when the suspension newcastle information is in the preset interval, the rear steering controller 10 controls the power element to push the steering rod system 4 to realize the left turn or the right turn of the rear wheel, so that the left turn or the right turn of the whole vehicle is further realized. It is understood that the steering linkage 4 is a main steering component in a multi-axle steering system of a vehicle, and the steering of the rear wheels can be controlled by the steering linkage 4 pushing the rear wheels, which is well known in the art and will not be described in detail herein.
In addition, when the straight-driving condition is satisfied, the rear steering controller 10 controls the centering element to start, so that the centering element pushes the steering linkage 4 to drive the rear wheel to steer, and in some embodiments, the straight-driving condition is satisfied when the rear steering controller 10 receives the start signal of the rear steering switch 7 and does not receive the start signals of the rear steering left switch 8 and the rear steering right switch 9. It can be understood that if it is desired to achieve centering and centering of the rear wheel (i.e. the rear wheel is centered from a left-turn or right-turn state and is used for keeping the vehicle running straight), the control route is different from that for controlling the steering of the whole vehicle, and firstly, the driver still presses the corresponding steering switch, i.e. only presses the rear wheel steering switch, and after other steering switches are not pressed, the rear steering controller 10 directly controls the centering element to push the steering rod system 4 to achieve centering and centering of the rear wheel, so as to further achieve centering and keeping straight running of the whole vehicle, it should be noted that when the rear steering controller 10 controls centering of the rear wheel, it is not necessary to determine the suspension stroke information transmitted by the height sensor 2, that is, no matter which stroke height the rear wheel suspension is at, the rear steering controller 10 can control centering of the rear wheel.
The invention further provides a vehicle, which comprises the rear steering height limiting device, the specific structure of the rear steering height limiting device refers to the embodiments, and the vehicle adopts all technical schemes of all the embodiments, so that the vehicle at least has all beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated herein.
Wherein the vehicle may for example be a patrol off-road vehicle.
While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a turn to high stop device after, which characterized in that includes:
the height sensor is arranged on the main reducer frame, a rocker arm is arranged on the height sensor, and the rocker arm is connected with a control arm on the rear wheel; and
a rear steering controller for receiving suspension travel information transmitted by the height sensor;
when the suspension stroke information monitored by the height sensor is in a preset interval, the rear steering controller controls the power element to start, and the power element pushes the steering rod system to drive the rear wheel to rotate, so that the steering of the whole vehicle is realized.
2. The rear steering height limiter of claim 1, wherein the height sensor is configured to monitor the swing arm angle information of the upper control arm, and convert the swing arm angle information into suspension travel information to be transmitted to the rear steering controller.
3. The rear steering height limiting device according to claim 2, wherein the suspension stroke comprises a suspension up-jump stroke and a suspension down-jump stroke, the upper limit value of the suspension up-jump stroke is A, the lower limit value of the suspension down-jump stroke is B, and the interval value of the preset interval is (a, B); wherein a is less than A; b is less than B.
4. The rear steering height limiting device of claim 1, wherein the rear steering control is electrically connected to a switching element for controlling the operation of the rear steering control.
5. The rear steering height limiting device of claim 4, wherein the switch element comprises a rear steering switch, a rear steering right switch and a rear steering left switch.
6. A rear steering height limiting device according to claim 5,
when the rear steering controller receives starting signals of the rear steering switch and the rear steering right-turn switch and suspension travel information transmitted by the height sensor is in a preset interval, the rear steering controller controls a power element to start so as to realize the right turn of the whole vehicle;
and when the rear steering controller receives starting signals of the rear steering switch and the rear steering left-turn switch and suspension travel information transmitted by the height sensor is within a preset interval, the rear steering controller controls a power element to start so as to realize the left turn of the whole vehicle.
7. The rear steering height limiting device of claim 5, wherein when a straight driving condition is met, the rear steering controller controls the centering element to be started, so that the centering element pushes the steering rod system to drive the rear wheel to be aligned.
8. The rear steering height limiting device according to claim 7, wherein the rear steering controller satisfies a straight-line driving condition when receiving the starting signal of the rear steering switch and not receiving the starting signals of the rear steering left switch and the rear steering right switch.
9. The rear steering height limiting device of claim 1 wherein the powered member is a powered cylinder and the centering member is a centering cylinder, the powered cylinder and the centering cylinder being configured to push the steering linkage to control rotation of the rear wheels.
10. A vehicle comprising a rear steering height limiting device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210637431.3A CN114789751A (en) | 2022-06-07 | 2022-06-07 | Rear steering height limiting device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210637431.3A CN114789751A (en) | 2022-06-07 | 2022-06-07 | Rear steering height limiting device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114789751A true CN114789751A (en) | 2022-07-26 |
Family
ID=82463593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210637431.3A Pending CN114789751A (en) | 2022-06-07 | 2022-06-07 | Rear steering height limiting device and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN114789751A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6588770B1 (en) * | 1999-07-14 | 2003-07-08 | Hyundai Motor Company | Automotive minimal-turning radius control system |
| US20030236603A1 (en) * | 2002-06-19 | 2003-12-25 | Jianbo Lu | System for sensing vehicle global and relative attitudes using suspension height sensors |
| JP2006062454A (en) * | 2004-08-25 | 2006-03-09 | Nissan Motor Co Ltd | Suspension device for vehicle |
| KR101399220B1 (en) * | 2012-12-18 | 2014-06-27 | 주식회사 만도 | Method and apparatus for controling automatic steering and parking using vehicle height sensors |
| CN206756130U (en) * | 2017-03-30 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Chassis height detection means, chassis attitude testing agency and vehicle |
| CN111094112A (en) * | 2017-09-27 | 2020-05-01 | 日立汽车***株式会社 | Vehicle control device |
| CN111942468A (en) * | 2020-07-22 | 2020-11-17 | 中联重科股份有限公司 | Steering system with adjustable corner limit and engineering machinery |
| CN112158190A (en) * | 2020-09-02 | 2021-01-01 | 中国第一汽车股份有限公司 | Vehicle stability control method based on rear wheel steering |
| CN112829826A (en) * | 2021-04-06 | 2021-05-25 | 北京汽车集团越野车有限公司 | Turn to locking structure, rear steering system and vehicle behind vehicle |
| CN113650466A (en) * | 2021-08-31 | 2021-11-16 | 郑州日产汽车有限公司 | Automatic vehicle height adjusting device |
-
2022
- 2022-06-07 CN CN202210637431.3A patent/CN114789751A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6588770B1 (en) * | 1999-07-14 | 2003-07-08 | Hyundai Motor Company | Automotive minimal-turning radius control system |
| US20030236603A1 (en) * | 2002-06-19 | 2003-12-25 | Jianbo Lu | System for sensing vehicle global and relative attitudes using suspension height sensors |
| JP2006062454A (en) * | 2004-08-25 | 2006-03-09 | Nissan Motor Co Ltd | Suspension device for vehicle |
| KR101399220B1 (en) * | 2012-12-18 | 2014-06-27 | 주식회사 만도 | Method and apparatus for controling automatic steering and parking using vehicle height sensors |
| CN206756130U (en) * | 2017-03-30 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Chassis height detection means, chassis attitude testing agency and vehicle |
| CN111094112A (en) * | 2017-09-27 | 2020-05-01 | 日立汽车***株式会社 | Vehicle control device |
| CN111942468A (en) * | 2020-07-22 | 2020-11-17 | 中联重科股份有限公司 | Steering system with adjustable corner limit and engineering machinery |
| CN112158190A (en) * | 2020-09-02 | 2021-01-01 | 中国第一汽车股份有限公司 | Vehicle stability control method based on rear wheel steering |
| CN112829826A (en) * | 2021-04-06 | 2021-05-25 | 北京汽车集团越野车有限公司 | Turn to locking structure, rear steering system and vehicle behind vehicle |
| CN113650466A (en) * | 2021-08-31 | 2021-11-16 | 郑州日产汽车有限公司 | Automatic vehicle height adjusting device |
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