CN207225465U - A kind of steering angle of wheel data acquisition device - Google Patents
A kind of steering angle of wheel data acquisition device Download PDFInfo
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- CN207225465U CN207225465U CN201721220655.5U CN201721220655U CN207225465U CN 207225465 U CN207225465 U CN 207225465U CN 201721220655 U CN201721220655 U CN 201721220655U CN 207225465 U CN207225465 U CN 207225465U
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- wheel
- turntable
- steering angle
- hall sensor
- data acquisition
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Abstract
The utility model discloses a kind of steering angle of wheel data acquisition device, including stent, Hall sensor, detection wheel and turntable, it is characterized in that：The Hall sensor is rack-mount, and stent is installed on vehicle frame, and the detection wheel is installed on the axis of Hall sensor, and turntable is fixedly mounted in rotation shaft of wheel and coaxial with wheel hub, and detection wheel shaft is parallel with turntable shaft, and detection wheel pushes against assembling with turntable.The utility model, by way of electromechanical combination, accurately measures steering angle of wheel, is conducive to the accurate operation of follow-up work personnel, its is simple and compact for structure, and collection result is accurate, and without human intervention, intelligence degree is high, and effect of low cost is good.
Description
Technical field
A kind of steering angle of wheel data acquisition device of construction work vehicle is the utility model is related to, belongs to construction work
Vehicle arrangement technical field.
Background technology
For the working truck of road surface, the steering angle of wheel reflects the operation intention of driver, so that shadow
Ring the driving safety to vehicle.The stability of vehicle traveling can be characterized by the cornering behavior of wheel, left and right sides wheel
Cornering behavior determine the cornering behavior of axle, antero posterior axis cornering behavior combines the steering characteristic for determining vehicle.Vehicle is steady
Qualitative control system needs the steering characteristic of identification automobile in real time, and passes through brake braking force or engine output torque tune
Section, to ensure that vehicle has the understeer characteristics of appropriateness.Therefore, Vehicular turn angle is accurately obtained to be of great significance.
The measurement to steering angle of wheel mainly has direct measuring method, indirect measurement method and based on dynamic in the prior art
The observation procedure of mechanical model.Direct measuring method is using wheel alignment meter, outer corner measurement disk or in steering angle testing stand
On directly tire is measured.This method can not only be suitable for automobile in the process of moving real-time to wheel static measurement
Measurement.Indirect measurement method is primarily based upon steering wheel angle to obtain the method for front wheel steering angle, small in vehicle travel process
The steering wheel angle of front wheel steering angle keeps linear relationship substantially during side acceleration, and indirect measurement method precision is higher, in side
To acceleration it is larger when, front wheel steering angle has also been superimposed Suspension Deformation steering angle and body roll steering angle, cause based on turn to
There are large error to obtain wheel turning angle for disk corner；Kinetic model observation procedure is mainly by establishing dynamics of vehicle
Model and AFS models are observed wheel turning angle, or are based on speed and acceleration to wheel steering by kinematics model
Angle is assessed, and kinetic model precision influences the accuracy of observation of wheel turning angle, and precision is not under big side acceleration operating mode
It can guarantee that.
Existing rod-pulling type steering angle of wheel data collecting system, its principle is as shown in Figure 7.Pass through 10 corner of wheel
The mapping relations of calibration sensor corner therewith.The action of steering cylinder 72 promotes vehicle wheel rotation certain angle, meanwhile, rod assembly
73 will also deflect therewith.The deflection of rod assembly drives link assembly 74 to move.The movement of link assembly pulls rotation direction sensor
71 end axis turns an angle.By the mapping relations between wheel steering angle and sensor, the corner of sensor is converted to
The steering angle of wheel is simultaneously shown.It is often not accurate enough in accuracy that the result measured and so is changed repeatedly.
Utility model content
Technical problem to be solved in the utility model, is to overcome defect existing in the prior art, there is provided a kind of wheel
Steering angle data acquisition device, the essence of vehicle steering angle is realized by the principle of Hall angular transducer and gearratio
Really measurement, overcomes the problems such as error of existing outer corner measurement mode is big, and accuracy is not good enough, helps driver accurately to control vehicle
Direction, so as to improve travel safety.
The utility model is a kind of steering angle of wheel data acquisition device, including stent, Hall sensor, detection wheel and
Turntable, the Hall sensor is rack-mount, and stent is installed on vehicle frame（Hall sensor can also be directly installed on
On vehicle frame, both belong to equivalent technologies）, for the detection wheel on the axis of Hall sensor, turntable is fixedly mounted on wheel
In shaft and coaxial with wheel hub, detection wheel shaft is parallel with turntable shaft, and detection wheel is pushed against with turntable and assembled.Turntable and wheel
Shaft is installed together, so that turntable is rotated synchronously with wheel, at the same time, is also occurred with the detection wheel of turntable joint
Rotate, and the information of deflection is passed to Hall sensor.
The steering angle of wheel data acquisition device, further includes cpu controller and display, the Hall sensor number
It is connected according to interface with cpu controller data-interface, cpu controller data output connection display.
Display device intuitively shows the angle of wheel steering, can also pass through other relevant actions of programming Control
Generation, so as to facilitate the in due course adjustment and operation of staff.
The utility model, the wheel disc and detection wheel can also use gear, intermeshing.
The utility model, by way of electromechanical combination, accurately measures steering angle of wheel, is conducive to follow-up
The accurate operation of staff, its is simple and compact for structure, and collection result is accurate, and without human intervention, intelligence degree is high, cost
Cheap effect is good.
Brief description of the drawings
Fig. 1 is the utility model steering angle of wheel data acquisition device structure diagram（Turntable is not drawn into）.
Fig. 2 is the utility model steering angle of wheel data acquisition device installation relation schematic diagram（It is local）.
Fig. 3 is the utility model steering angle of wheel data acquisition device installation relation schematic perspective view（It is local）.
Fig. 4 is the utility model steering angle of wheel data acquisition device installation relation schematic diagram.
Fig. 5 is the A-A profiles of Fig. 4.
Fig. 6 is detection wheel and wheel disc gearratio（D/d）Schematic diagram.
Fig. 7 is existing rod-pulling type steering angle of wheel data collecting system schematic diagram.
Embodiment
With reference to embodiment and attached drawing, the utility model is described in further detail.
The utility model steering angle of wheel data acquisition device, including adjustment bent plate 3, stent 6, Hall sensor 7, inspection
Measuring wheel 8.Hall sensor 7 is fixed on below stent 6 by two bolts, and elastic adjustment bent plate 3 passes through two spiral shells
Bolt is fixed on the left surface of stent 6, and detection wheel 8 is installed on the projecting shaft of 7 lower end of Hall sensor, adjusts the another of bent plate 3
End is assembled together by screw rod 1 with fixed frame 4, and the top of fixed frame 4 is welded with the installing plate 12 being fixed on vehicle frame,
And contact friction level of the detection wheel with turntable can be adjusted by the elongation of adjusting screw rod 1, last stent 6 passes through installation axle
5 and nut 2 be fixed on vehicle frame installing plate 12.
One wheel turntable assembly is installed, the turntable 9 in wheel turntable assembly is fixedly mounted on car in 10 shaft 11 of wheel
In wheel shaft 11 and coaxial with wheel hub, detection wheel shaft is parallel with turntable shaft, and detection wheel is pushed against with turntable and assembled.
When steering cylinder 13 promotes the rotation shaft of wheel when wheel turntable assembly starts to rotate, being installed together with turntable 9
11 also will be with deflecting, and under the drive of rotation shaft of wheel 11, wheel 10 has also just ensued the rotation of certain angle.With
This also rotates according to gearratio D/d with the detection wheel 8 that is in contact of turntable 9 in the case where the contact friction with turntable 9 drives at the same time.
Also, the degree of crook of elastic adjustment bent plate 3 can be controlled by the elongation of adjusting screw rod 1, so as to ensure detection wheel 8
The state of good contact is always at turntable 1.In this way, steering cylinder 13 promotes certain stroke, turntable assembly 9 just correspond to
Certain angle is deflected, belonging to one-to-one corresponding so as to result in deflection of the wheel 10 there occurs certain angle, between them closes
System, and the deflection of the rotational angle of detection wheel 8 and turntable 9 be also it is one-to-one, the diameter of turntable 9 and detection wheel 8 it is known that
Their gearratio determines that, in this way, 10 steering angle of wheel just reflects on turntable 9, can by gearratio
The angle of turntable 9 is converted into the angle of detection wheel 8, also just establishes one kind between 8 corner of 10 corner of wheel and detection wheel
Accurate relation, travels to the steering angle of wheel 9 on Hall sensor 7 by this relation, gets accurate steering
Angle would be even more beneficial to operate vehicle and reduce the generation of accident.The detection data of Hall sensor 7 are controlled by CPU
Device calculates and is conveyed to display and intuitively shows.
The utility model steering angle data acquisition device, the measurement suitable for vehicle steering angle data are obtained, adopted
Structure type simple and compact, electromechanics fusion, accuracy of measurement is high, and cost is low, easy for installation, and effect is good.
Claims (2)
1. a kind of steering angle of wheel data acquisition device, including stent, Hall sensor, detection wheel and turntable, it is characterized in that：
The Hall sensor is rack-mount, and stent is installed on vehicle frame, and the detection wheel is installed on the axis of Hall sensor,
Turntable is fixedly mounted in rotation shaft of wheel and coaxial with wheel hub, and detection wheel shaft is parallel with turntable shaft, and detection wheel is supported with turntable
It is closely assembled.
2. steering angle of wheel data acquisition device according to claim 1, it is characterized in that：Including cpu controller and show
Show device, the Hall sensor data-interface is connected with cpu controller data-interface, the output connection display of cpu controller data
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721220655.5U CN207225465U (en) | 2017-09-22 | 2017-09-22 | A kind of steering angle of wheel data acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721220655.5U CN207225465U (en) | 2017-09-22 | 2017-09-22 | A kind of steering angle of wheel data acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207225465U true CN207225465U (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721220655.5U Active CN207225465U (en) | 2017-09-22 | 2017-09-22 | A kind of steering angle of wheel data acquisition device |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234795A (en) * | 2021-12-17 | 2022-03-25 | 上海易咖智车科技有限公司 | Mechanical range detection device for corner of transport vehicle |
| DE102022210115A1 (en) | 2022-09-26 | 2024-03-28 | Zf Friedrichshafen Ag | Steering angle detection arrangement for a steerable travel drive of an industrial truck, travel drive for the industrial truck and industrial truck |
-
2017
- 2017-09-22 CN CN201721220655.5U patent/CN207225465U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234795A (en) * | 2021-12-17 | 2022-03-25 | 上海易咖智车科技有限公司 | Mechanical range detection device for corner of transport vehicle |
| CN114234795B (en) * | 2021-12-17 | 2024-02-13 | 上海易咖智车科技有限公司 | Transport vechicle corner mechanical range detection device |
| DE102022210115A1 (en) | 2022-09-26 | 2024-03-28 | Zf Friedrichshafen Ag | Steering angle detection arrangement for a steerable travel drive of an industrial truck, travel drive for the industrial truck and industrial truck |
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