CN207725482U - A kind of allterrain vehicle back-wheel Follow-up steering mechanism - Google Patents
A kind of allterrain vehicle back-wheel Follow-up steering mechanism Download PDFInfo
- Publication number
- CN207725482U CN207725482U CN201721809262.8U CN201721809262U CN207725482U CN 207725482 U CN207725482 U CN 207725482U CN 201721809262 U CN201721809262 U CN 201721809262U CN 207725482 U CN207725482 U CN 207725482U
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- China
- Prior art keywords
- steering
- wheel
- trailing wheel
- vehicle
- executing agency
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- 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.)
- Expired - Fee Related
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- Steering Control In Accordance With Driving Conditions (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The utility model is related to a kind of control systems in automotive engineering technology field, and in particular to a kind of allterrain vehicle back-wheel Follow-up steering mechanism, the mechanism include：Wheel steering sensor on the steering wheel is set, the vehicle speed sensor on all-terrain vehicle chassis is set, the rear-axle steering executing agency on all-terrain vehicle chassis being arranged above trailing wheel, trailing wheel active steering control system, rear-axle steering executing agency includes：Motor inside housings, the output shaft that motor stretches out, the gear being arranged on motor output shaft is respectively set in shell, the rack engaged with gear, rod end joint spindle nose at rack both ends is set, the steering linkage being connect with rod end joint spindle nose, the utility model has the advantages that：Improve driver's driving performance, enhances the control stability of vehicle.According to the operating parameter of all-terrain vehicle, rear-axle steering executing agency is made to change rear-axle steering angle in real time, realizes the follow-up steering of precision controlling trailing wheel.
Description
Technical field
The utility model is related to a kind of control systems in automotive engineering technology field, and in particular to a kind of allterrain vehicle back-wheel
Follow-up steering mechanism.
Background technology
People Chang Huiyong is accurate, it is light evaluate the steering of a vehicle, and steering is directly concerning vehicle
Driving safety and handling.In Traditional Thinking, the only thing of front-wheel is turned to perhaps, with the development of science and technology, can be promoted
Sharp weapon --- trailing wheel follow-up steering occurs for steering behaviour and safe, and so-called trailing wheel follow-up steering refers to automobile excessively curved
When, other than front-wheel can provide steering force and steering direction, trailing wheel can also generate a degree of steering angle.Although angle
Very little, but the mobility of automobile can be improved to a certain extent.Although the rear-axle steering angle small in this way when low speed is exercised
Degree seems to play the role of much, but when running at high speed, steering angle small in this way can play vital work
With.
Currently, existing trailing wheel slave steering system is all to arrange some rubber mounts between suspension and vehicle body, pass through
Rubber is flexibly connected suspension and vehicle body, since rubber has certain elasticity, and has quite high intensity in elastic limit,
So in automobile turning, a degree of elastic shape can occur under the action of cross force for the rear rubber mount for hanging tie point
Become.To do the toe-in angle variation of certain angle with motor car wheel.So trailing wheel can do a very little with the steering of front-wheel
The steering of angle.This steering angle depends on the hardness of rubber mount.Rubber pad is softer, and trailing wheel variable steering angle is got over
Greatly, but suspension stiffness reduction stability is poor；Rubber mount is harder, and rear wheel steering angle is smaller, but suspension stiffness is big, stability
It is high in this way, the steering of trailing wheel follow-up steering can not to be precisely controlled, and the hardness of rubber mount also can not be good
It grasps.
Utility model content
The purpose of this utility model is to provide a kind of allterrain vehicle back-wheel Follow-up steering mechanism, for allterrain vehicle back-wheel
Servo antrol overcomes above-mentioned the deficiencies in the prior art.
The utility model includes：Wheel steering sensor on the steering wheel is set, is arranged on all-terrain vehicle chassis
Vehicle speed sensor, the rear-axle steering executing agency on all-terrain vehicle chassis being arranged above trailing wheel, control direction disk turn to
The trailing wheel active steering control system of sensor, vehicle speed sensor and rear-axle steering executing agency, the trailing wheel active steering control
System access vehicle circuitry processed, wherein the rear-axle steering executing agency includes：Electricity inside housings is respectively set in shell
The output shaft of mechanical, electrical machine stretching, the gear being arranged on motor output shaft, the rack engaged with gear are arranged at rack both ends
Rod end joint spindle nose, the steering linkage being connect with rod end joint spindle nose, be arranged on rear wheel rear turn of the steering linkage
To on section, steering linkage is provided with brake pad for pulling wheel steering between the rack and shell.
The advantages of the utility model and good effect are：
1, the utility model, which has, improves driver's driving performance, enhances the control stability of vehicle.According to all-terrain vehicle
Operating parameter, so that rear-axle steering executing agency is changed rear-axle steering angle in real time, realize the follow-up steering of precision controlling trailing wheel.
2, the utility model has simple in structure, precise control, using the mechanical system of rear-axle steering executing agency to rear
It rotates to being controlled in the accuracy for being subject to intelligent control raising rear-axle steering, solves traditional for the servo-actuated of raising trailing wheel
It turns to accuracy and suspension stiffness is made to reduce the shortcomings that stability reduces.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the rear-axle steering executing agency schematic diagram of the utility model.
Fig. 3 is the trailing wheel corner control method flow chart of the utility model.
Reference numeral:Wheel steering sensor 1, vehicle speed sensor 2, rear-axle steering executing agency 3, trailing wheel actively turn
To control system 4, shell 5, motor 6, output shaft 7, gear 8, rack 9, rod end joint spindle nose 10, steering linkage 11, brake pad
12, rear steering section 13.
Specific implementation mode
Refering to fig. 1, Fig. 2, the utility model include：Wheel steering sensor 1 on the steering wheel is set, is arranged complete
Vehicle speed sensor 2 on landform chassis, the rear-axle steering executing agency 3 on all-terrain vehicle chassis being arranged above trailing wheel,
Control direction disk rotation direction sensor 1, vehicle speed sensor 2 and the trailing wheel active steering control system 4 of rear-axle steering executing agency 3,
The trailing wheel active steering control system 4 accesses vehicle circuitry, wherein the rear-axle steering executing agency 3 includes：Shell 5 divides
Motor 6 inside shell 5, the output shaft 7 that motor 6 stretches out, the gear 8 being arranged on motor output shaft 7 are not set, with gear
The rack 9 of 8 engagements, is arranged the rod end joint spindle nose 10 at 9 both ends of rack, the steering linkage being connect with rod end joint spindle nose 10
11, the steering linkage 11 is arranged in rear wheel（It does not show）On rear steering section 13 on, steering linkage 11 is for pulling wheel
It turns to, brake pad 12 is provided between the rack 9 and shell 5.
Refering to Fig. 3, the trailing wheel corner of trailing wheel Follow-up steering mechanism controls, and includes the following steps：Step S10：Steering wheel turns
Front-drive angle δ sw and the speed u of all-terrain vehicle are detected respectively to sensor 1 and vehicle speed sensor 2；
Step S20：What the reception steering wheel of trailing wheel active steering control system 4 rotation direction sensor 1 and vehicle speed sensor 2 received
The front-drive angle δ sw and speed u of all-terrain vehicle controls rear-axle steering executing agency 3 by following five kinds of situations,
Rear-axle steering executing agency 3 controls rear wheel positive 5 degree or trailing wheel not servo-actuated or minus 5 degree of rear wheel, wherein left-hand rotation is negative angle
Degree, turns right as positive-angle；
Situation 1：When steering wheel rotational angle δ sw, which are less than minus 20 degree and speed u, is less than 40km/h, trailing wheel active steering
Control system 4 controls rear-axle steering executing agency 3, and trailing wheel is with positive 5 degree of front-wheel direction rotation；Rear-axle steering and front-wheel steer phase
Together, to reduce the roll force of vehicle tempo turn, riding stability is improved.
Situation 2：When steering wheel rotational angle δ sw, which are more than 20 degree and speed u, is more than 40km/h, trailing wheel active steering control
System 4 processed controls rear-axle steering executing agency, and trailing wheel is with positive 5 degree of front-wheel direction rotation；
Rear-axle steering is identical as front-wheel steer, to reduce the roll force of vehicle tempo turn, improves riding stability.
Situation 3：When steering wheel rotational angle δ sw, which are less than minus 20 degree and speed u, is more than 40km/h, trailing wheel actively turns
Rear-axle steering executing agency 3 is controlled to control system 4, trailing wheel is with minus 5 degree of front-wheel direction rotation；
Make rear-axle steering with front-wheel steer on the contrary, to realize the reduction of turning radius.
Situation 4：When steering wheel rotational angle δ sw, which are more than 20 degree and speed u, is less than 40km/h, trailing wheel active steering
Control system 4 controls rear-axle steering executing agency 3, and trailing wheel is with minus 5 degree of front-wheel direction rotation；Rear-axle steering and front-wheel steer phase
Instead, to realize the reduction of turning radius.
Situation 5：When steering wheel rotational angle δ sw are less than 20 degree or less than minus 20 degree, trailing wheel active steering control system
4 control rear-axle steering executing agency 3 of system, trailing wheel is not with front-drive, all-terrain vehicle normal direction of rotation.
Claims (2)
1. allterrain vehicle back-wheel Follow-up steering mechanism, characterized in that including：Wheel steering sensing on the steering wheel is set
The vehicle speed sensor on all-terrain vehicle chassis is arranged in device, the rear-axle steering on all-terrain vehicle chassis being arranged above trailing wheel
Executing agency, control direction disk rotation direction sensor, vehicle speed sensor and the control of the trailing wheel active steering of rear-axle steering executing agency
System, the trailing wheel active steering control system accesses vehicle circuitry, wherein the rear-axle steering executing agency includes：Shell,
Motor inside housings, the output shaft that motor stretches out, the gear being arranged on motor output shaft is respectively set, is engaged with gear
Rack, the rod end joint spindle nose at rack both ends, the steering linkage being connect with rod end joint spindle nose, the steering linkage are set
On the rear steering section being arranged on rear wheel, steering linkage is provided with for pulling wheel steering between the rack and shell
Brake pad.
2. allterrain vehicle back-wheel Follow-up steering mechanism according to claim 1, it is characterized in that：The trailing wheel active steering control
System processed includes：Main control module turns to sensing module, speed sensing module, driving motor module, power module, the master
Control module is electrically connected with steering sensing module, speed sensing module, driving motor module, power module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721809262.8U CN207725482U (en) | 2017-12-22 | 2017-12-22 | A kind of allterrain vehicle back-wheel Follow-up steering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721809262.8U CN207725482U (en) | 2017-12-22 | 2017-12-22 | A kind of allterrain vehicle back-wheel Follow-up steering mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207725482U true CN207725482U (en) | 2018-08-14 |
Family
ID=63086136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721809262.8U Expired - Fee Related CN207725482U (en) | 2017-12-22 | 2017-12-22 | A kind of allterrain vehicle back-wheel Follow-up steering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207725482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972733A (en) * | 2017-12-22 | 2018-05-01 | 长春天火汽车制造有限公司 | A kind of allterrain vehicle back-wheel Follow-up steering mechanism |
-
2017
- 2017-12-22 CN CN201721809262.8U patent/CN207725482U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972733A (en) * | 2017-12-22 | 2018-05-01 | 长春天火汽车制造有限公司 | A kind of allterrain vehicle back-wheel Follow-up steering mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180814 Termination date: 20191222 |