CN204055964U - A kind of erecting device for rotating of steering wheel angle and rotational angular velocity detecting device - Google Patents
A kind of erecting device for rotating of steering wheel angle and rotational angular velocity detecting device Download PDFInfo
- Publication number
- CN204055964U CN204055964U CN201420486492.5U CN201420486492U CN204055964U CN 204055964 U CN204055964 U CN 204055964U CN 201420486492 U CN201420486492 U CN 201420486492U CN 204055964 U CN204055964 U CN 204055964U
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- China
- Prior art keywords
- bearing circle
- anchor ear
- bowden cable
- linear transducer
- steering wheel
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- Withdrawn - After Issue
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Abstract
The utility model provides a kind of erecting device for rotating of steering wheel angle and rotational angular velocity detecting device, comprise for fixed test rotating of steering wheel angle, the photoisolator of speed and the fixed support of linear transducer, described fixed support is fastened in the periphery of the transmission shaft of bearing circle; Described linear transducer is connected with flexible bowden cable, the other end of described flexible bowden cable be installed on bearing circle bottom and be connected with the anchor ear of bearing circle coaxial rotation, the flexible bowden cable overcoat between linear transducer and anchor ear has leading line cover; The below of described anchor ear is provided with the fixed stop pin for bearing circle initial position fix, and makes the photoisolator described in fixed stop pin aligning.The flexible bowden cable of linear transducer is transformed to the rotational angle of bearing circle through anchor ear, leading line cover, fixed support the collapsing length of bracing wire, collapsing length is by calculating the real-time rotational angle rotational angular velocity of bearing circle accordingly, thus make detection have real-time, accuracy of detection is high.
Description
Technical field
The utility model relates to motor vehicle control state automatic monitoring technical field, is specifically related to a kind of erecting device for rotating of steering wheel angle and rotational angular velocity detecting device.
Background technology
Self-propelled vehicle travels on road, and the manipulation of its travel direction plays an important role to safe driving, and bearing circle controls the travel direction of self-propelled vehicle.At present in order to realize the accurate detection to steering wheel operation, play an important role in automatic driving of motor vehicle technical field, steerman driving quality automatic examination evaluation technology field and steerman monitoring safety status technical field in transit.
In automatic driving of motor vehicle technical field, the detection of rotating motor vehicle steering wheel installs photoelectric encoder on bearing circle transmission shaft, photoelectric encoder movable axis rotates together with bearing circle, realizes the detection to bearing circle rotational angle and rotational angular velocity by photoelectric encoder output count pulse.This method needs to carry out very large transformation to self-propelled vehicle, and installation period is long, and funds use many; In addition in the plant maintenance in the later stage, need again to disassemble vehicle, time-consumingly to take a lot of work; In long-time use procedure, due to the accumulation of error, the deterioration in accuracy causing rotating of steering wheel angle and rotational angular velocity to detect, affects the manipulation effect of bearing circle.
In steerman driving quality automatic examination evaluation technology field, because of traditional rotating of steering wheel angle and rotational angular velocity detecting device use cost high, difficult in maintenance, adopt indirect mode to detect bearing circle manipulation state, namely adopt machine vision technique to pass judgment on tested self-propelled vehicle and whether other target of periphery keeps suitable safety distance.This method belongs to qualitative detection afterwards, does not detect anticipation motor-driven vehicle going direction, thus initiatively avoid possible potential safety hazard by bearing circle.In addition, this method metrical error is large, cannot carry out accurate description, also just cannot realize the auto judge of steerman to steering wheel operation correctness to the serviceability of bearing circle.
In steerman monitoring safety status technical field in transit, do not concentrate according to bearing circle steer mode during steerman waking state and driver attention, fatigue state time there is notable difference identify that whether steerman in a safe condition.It adopts gear cluster that the rotating manner of bearing circle is sent out usually, and is amplified, then gathers rotational angle and the cireular frequency of bearing circle by Hall element or opto-electronic pickup.There is detecting device and install trouble in this mode, the motion along with automobile is jolted and easily damaged, and the shortcoming such as accuracy of detection is low.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of erecting device for rotating of steering wheel angle and rotational angular velocity detecting device, can when not affecting self-propelled vehicle normal running, detection when carrying out high-precision real to the rotational angle of Multiple Type motor vehicle steering wheel and cireular frequency, drives the bearing circle manipulation state-detection in automatic detection field for use in automatic driving of motor vehicle field, steerman driving quality automatic examination field and driver fatigue.
The technical solution of the utility model is:
A kind of erecting device for rotating of steering wheel angle and rotational angular velocity detecting device, comprise for fixed test rotating of steering wheel angle, the photoisolator of speed and the fixed support of linear transducer, described fixed support is fastened in the periphery of the transmission shaft of bearing circle; Described linear transducer is connected with flexible bowden cable, the other end of described flexible bowden cable be installed on bearing circle bottom and be connected with the anchor ear of bearing circle coaxial rotation, the flexible bowden cable overcoat between linear transducer and anchor ear has leading line cover; The below of described anchor ear is provided with the fixed stop pin for bearing circle initial position fix, and makes the photoisolator described in fixed stop pin aligning.
Further, described anchor ear coil to pressing from both sides by a left side half dish and right half that Hafu-type is fastening to be formed, and the bottom edge of anchor ear is provided with a ring recess dish, and described flexible bowden cable winding is arranged in described slotted disk; The inwall of described slotted disk offers the screw for installing fixed stop pin.
Further, by clip and clip support, to pressing from both sides, Hafu-type is fastening to be formed described fixed support, described clip is installed with photoisolator, clip support is installed with linear transducer.
In the utility model, the fastening middle Hough of Hafu-type is the transliteration of English " half ", is exactly the meaning of half, with regard to refer to be divided into two semicircle splits and.
The principle of work of linear transducer and photoisolator is prior art, and the utility model only provides the erecting device installed it.Be specially: the flexible bowden cable that linear transducer connects is through leading line cover, anchor ear, fixed support, the rotational angle of bearing circle is transformed to the collapsing length of leading line cover, collapsing length is by calculating the real-time rotational angle rotational angular velocity of bearing circle accordingly.Anchor ear snugly fits into the bearing circle lower end of self-propelled vehicle, and it rotates with rotating of steering wheel, and the flexible bowden cable other end of linear transducer mouth is fixed on anchor ear, and unnecessary flexible bowden cable is wrapped in the slotted disk of anchor ear; The input and output direction of the flexible bowden cable in anchor ear slotted disk is different from the input and output direction of the flexible bowden cable of linear transducer end, that is overlapped by leading line is seamlessly transitted, when realizing rotating of steering wheel, flexible bowden cable steadily stretches between anchor ear slotted disk and linear transducer, and cotton rope length variations is proportional to rotating of steering wheel angle.When rotating of steering wheel, flexible bowden cable occurs flexible by the effect of elastic force, and namely bearing circle rotates clockwise, and flexible bowden cable is drawn out from linear transducer, is wrapped in anchor ear slotted disk; Bearing circle rotates counterclockwise, and flexible bowden cable is released from anchor ear slotted disk, is regained by linear transducer.
Photoisolator is the detection to outgoing level, can the reference position of calibrating direction dish, eliminates the accumulated error in rotating of steering wheel angle testing process.The attachment face of photoisolator is parallel with anchor ear, during rotating of steering wheel, if gear pin just can produce a position correction signal through photoisolator, for confirming the initial position of bearing circle, to eliminate cumulative measurement error.Fixed stop pin is installed below anchor ear, for bearing circle initial position fix, when namely bearing circle is in initial position (rotational angle is 0), fixed stop pin is positioned in the middle of the photoisolator on fixed support, shelter from the light of photoisolator, then Opto Isolator circuit exports high level; And when fixed stop pin does not block, then its output low level.
Advantage of the present utility model:
(1) erecting device of the present utility model is transformed to the rotary motion of bearing circle the straight-line displacement campaign of linear transducer, and adopt soft bracing wire to transmit straight-line motion, soft bracing wire can folding and unfolding in the slotted disk of anchor ear, simplify the structure, easy for installation during use.
(2) the utility model adopts hooping structure to follow the tracks of, gather the rotary state of bearing circle, can according to the installation dimension of the actual size adjustment anchor ear of bearing circle installation position, the rotating of steering wheel of multiple motor vehicle model can be measured, there is when applying very strong comformability.
(3) linear transducer that the utility model uses adopts normalized current output mode, can reduce extraneous electromagnetic interference in motor-driven vehicle going process, makes detecting device stablize, reliably run.
(4) this detecting device takes up room little, makes full use of the operation that finite space does not affect bearing circle, achieves the line stretcher displacement in good time corner of bearing circle being changed into flexible bowden cable, and calibrates angle in good time, improves accuracy of detection; There is cost low, simple installation simultaneously, debug advantage efficiently, in existing real road examination, the in good time efficient detection of steering wheel angle provides an optimal selection.
Accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present utility model.
Fig. 2 is hooping structure schematic diagram of the present utility model.
Fig. 3 is fixing rack structure schematic diagram of the present utility model.
Detailed description of the invention
As shown in Figure 1, a kind of erecting device for rotating of steering wheel angle and rotational angular velocity detecting device, comprise the fixed support 4 of the photoisolator 5 for fixed test rotating of steering wheel angle, speed and linear transducer 8, described fixed support 4 is fastened in the periphery of the transmission shaft 9 of bearing circle; Described linear transducer 8 is connected with flexible bowden cable 7, the other end of described flexible bowden cable 7 be installed on bearing circle 1 bottom and be connected with the anchor ear 2 of bearing circle 1 coaxial rotation, flexible bowden cable 7 overcoat between linear transducer 8 and anchor ear 2 has leading line to overlap 6; The below of described anchor ear 2 is provided with the fixed stop pin 3 for bearing circle 1 initial position fix, and makes fixed stop pin 3 aim at described photoisolator 5.
As shown in Figure 2, anchor ear 2 coils 2-2 by a left side half dish 2-1 and right half Hafu-type is fastening to be formed to pressing from both sides, and the bottom edge of anchor ear 2 is provided with a ring recess dish 2-4, and unnecessary flexible bowden cable is then wound around and is arranged in slotted disk 2-4; The inwall of described slotted disk 2-4 offers the screw 2-3 for installing fixed stop pin 3.
As shown in Figure 3, by clip 4-1 and clip support 4-2, to pressing from both sides, Hafu-type is fastening to be formed fixed support 4, clip 4-1 is installed with photoisolator 5, clip support 4-2 is installed with linear transducer 8.
Linear transducer 8 is fixed on fixed support 4, the flexible bowden cable 7 of linear transducer 8 is fixed on anchor ear 2 through leading line cover 6, and the flexible bowden cable 7 about pulling out half is wrapped in the slotted disk of anchor ear 2, the elastic force effect that flexible bowden cable 7 is subject to linear transducer 8 can be tightened up by nature.During rotating of steering wheel, flexible bowden cable 7 correspondingly stretches, and obtains the real-time rotational angle rotational angular velocity of bearing circle according to its collapsing length by calculating.
Above embodiment is not limited only to protection domain of the present utility model, all modify based on basic thought of the present utility model or change all belong to protection domain of the present utility model.
Claims (3)
1. the erecting device for rotating of steering wheel angle and rotational angular velocity detecting device, it is characterized in that: the fixed support (4) comprising photoisolator (5) for fixed test rotating of steering wheel angle, speed and linear transducer (8), described fixed support (4) is fastened in the periphery of the transmission shaft (9) of bearing circle; Described linear transducer (8) is connected with flexible bowden cable (7), the other end of described flexible bowden cable (7) be installed on bearing circle (1) bottom and be connected with the anchor ear (2) of bearing circle (1) coaxial rotation, flexible bowden cable (7) overcoat be positioned between linear transducer (8) and anchor ear (2) has leading line cover (6); The below of described anchor ear (2) is provided with the fixed stop pin (3) for bearing circle (1) initial position fix, and makes the photoisolator (5) described in fixed stop pin (3) aligning.
2. erecting device according to claim 1, it is characterized in that: described anchor ear (2) coils (2-2) by Zuo Banpan (2-1) and right half Hafu-type is fastening to be formed to pressing from both sides, the bottom edge of anchor ear (2) is provided with a ring recess dish (2-4), and described flexible bowden cable (7) is wound around and is arranged in described slotted disk (2-4); The inwall of described slotted disk (2-4) offers the screw (2-3) for installing fixed stop pin (3).
3. erecting device according to claim 1, it is characterized in that: by clip (4-1), to pressing from both sides, Hafu-type is fastening to be formed described fixed support (4) with clip support (4-2), described clip (4-1) is installed with photoisolator (5), clip support (4-2) is installed with linear transducer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486492.5U CN204055964U (en) | 2014-08-27 | 2014-08-27 | A kind of erecting device for rotating of steering wheel angle and rotational angular velocity detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486492.5U CN204055964U (en) | 2014-08-27 | 2014-08-27 | A kind of erecting device for rotating of steering wheel angle and rotational angular velocity detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204055964U true CN204055964U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420486492.5U Withdrawn - After Issue CN204055964U (en) | 2014-08-27 | 2014-08-27 | A kind of erecting device for rotating of steering wheel angle and rotational angular velocity detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204055964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176125A (en) * | 2014-08-27 | 2014-12-03 | 安徽三联交通应用技术股份有限公司 | Real-time high-precision detecting device for rotation angle and rotation angular velocity of steering wheel |
-
2014
- 2014-08-27 CN CN201420486492.5U patent/CN204055964U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176125A (en) * | 2014-08-27 | 2014-12-03 | 安徽三联交通应用技术股份有限公司 | Real-time high-precision detecting device for rotation angle and rotation angular velocity of steering wheel |
| CN104176125B (en) * | 2014-08-27 | 2016-08-03 | 安徽三联交通应用技术股份有限公司 | A kind of real-time high-precision detection device of steering wheel rotational angle and rotational angular velocity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20160803 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |