CN103692957A - Auto headlamp two-degree-of-freedom turning arc direct drive system - Google Patents
Auto headlamp two-degree-of-freedom turning arc direct drive system Download PDFInfo
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- CN103692957A CN103692957A CN201310689916.8A CN201310689916A CN103692957A CN 103692957 A CN103692957 A CN 103692957A CN 201310689916 A CN201310689916 A CN 201310689916A CN 103692957 A CN103692957 A CN 103692957A
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Abstract
The invention discloses an auto headlamp two-degree-of-freedom turning arc direct drive system which comprises a lamp body, a first support, a two-degree-of-freedom arc motor, a microcontroller, a position sensor, a cardan, a second support and a third support, and is characterized in that the lamp body is arranged on the first support, the cardan is arranged on the first support and is located on the circle center of the two-degree-of-freedom arc motor, and the microcontroller is connected with the two-degree-of-freedom arc motor and the position sensor by wires. According to the system, the microcontroller controls the two-degree-of-freedom arc motor to move so as to drive the lamp body to rotate left and right in a horizontal surface and rotate in a pitching way in a vertical surface; angle adjustment of the two degree of freedom of the lamp body in the horizontal surface and the vertical surface is realized, the turning rapidity and the rotation angle accuracy of the lamp body are ensured, and a dead zone is enabled to be illuminated.
Description
Technical field
The present invention relates to the control apparatus of automobile front illumination direction, angle and width, be specifically related to automobile front two-freedom driving and steering system.
Background technology
Conventional truck head light direction is fixed, large lamp wiring because of and vehicle heading be consistent, in the bad visibility situation causing in night or climate reasons, unavoidably during turning there is illumination " blind area "; Axle load when various variations such as load-carryings, acceleration, deceleration, upward slope, descending causes headlight change of pitch angle in addition, can cause cannot effective lighting vehicle heading road surface.In these cases, if there is obstacle on road, may cause traffic accident.
Automobile front two-freedom steering technique (AFS) is mainly to improve the bad visibility problem that night and climatic factor cause.Head light two-freedom steering swivel system can regulate automatically according to the factors such as variation of road speed, vehicle body steering angle, between centers load the horizontal steering angle and the vertical elevation angle of head light, to illuminate in time the region of " not arriving ", omnibearing safety lighting is provided, guarantees the safety of night travel.
Application number is 201220083167.5 the asynchronous control follow-up steering headlight system of patent < < > >, application number is 201220399526.8 the automatic follow-up steering head light of patent < < automobile device > >, and the head light two-freedom steering swivel system in existing automobile is mainly by light fixture, support, controller, servomotor or stepping motor and Positioning Gear form.Its principle is by using an electric machine control rotating shaft to rotate up and down in the vertical direction the adjusting that reaches the lamp body elevation angle, using an electric machine control gear that lamp body horizontal direction is rotated.This system architecture is complicated, and manufacturing cost is high and easily break down.Because lamp body turns to by motor-driven gear, complete in addition, exist and to turn to that hysteresis, steering sensitivity are poor, steering angle deviation, the problem such as creep, can not reflect driver's true intention.
Summary of the invention
In order to solve problems of the prior art, the object of the present invention is to provide a kind of without gear transmission, simple in structure, reliability is high, with low cost, and what can meet head light horizontal direction and vertical direction two-freedom turns to that clever lightness is high, steering angle requirement accurately, meets driver's the automobile front two-freedom driving and steering system that turns to intention.
In order to achieve the above object, the present invention is by the following technical solutions: a kind of automobile front two-freedom turns to the straight drive system of camber line, comprise lamp body, the first support, two-freedom arc electric motor, microcontroller, position transduser, universal-joint, the second support and the 3rd support, it is characterized in that: described lamp body is arranged on the first support, on the first described support, universal-joint is installed, described universal-joint is positioned at the center of circle of two-freedom arc electric motor, and described microcontroller is connected with position transduser with two-freedom arc electric motor by wire.
Described two-freedom arc electric motor comprises stator, the first mover and the second mover, and described stator and the first mover have magnetic links back to Surface Mount in the one side of stator, and the first described mover regards on the one side of stator and the second mover respectively a set of winding; Or described magnetic links Surface Mount is on stator and the second mover, and the first described mover tow sides respectively have a set of winding; Or described stator and the first mover respectively have a set of winding in the one side of stator, the first described mover regards to Surface Mount on the one side of stator and the second mover magnetic links; Or on described stator and the second mover, respectively have a set of winding, on the first described mover tow sides, Surface Mount has magnetic links.The first described mover is not only as the mover of stator but also as the stator of the second mover, the shape of the first described mover is that criss cross and every limit are arcs.
The first described support is connected by universal-joint with the second support, and the second described support is vertical with stator place plane; Described lamp body afterbody is connected with the second mover center-point by the 3rd support.
Described position transduser is absolute type camber line coder, and described absolute type camber line coder is grating or magnetic grid.
Described lamp body rotation direction and two-freedom arc electric motor the first mover rotation direction on horizontal surface on horizontal surface are that consistent, the described lamp body rotation direction on vertical surface is consistent with the rotation direction of two-freedom arc electric motor the second mover on vertical surface on circumference on circumference.
Described microcontroller adopts vector control strategy to control two-freedom arc electric motor according to wheel steering signal and height sensor signal, thus drive lamp body in the horizontal direction, vertical direction two-freedom rotates.
Adopt technique scheme, the present invention has following beneficial effect: microprocessor control two-freedom arc electric motor motion of the present invention, thus drive lamp body left-right rotation on horizontal surface; Pitch rotation on vertical surface.Microcontroller is according to the steering angle signal of bearing circle, the speed of a motor vehicle, front and back height sensor calculated signals go out lamp body expectation deflection angle (horizontal surface and vertical surface), according to this corner instruction, use three closed loops (corner ring, speed ring, electric current loop) vector control strategy, control two-freedom arc electric motor mover and move to assigned address, adjust the corner on lamp body horizontal surface and vertical surface.Realized the angular adjustment of horizontal surface and vertical surface two-freedom, guaranteed the rapidity that lamp body turns to, the particularity of corner, guaranteed to illuminate " blind area ".
Accompanying drawing explanation
Fig. 1 is the first integral structure schematic diagram of the present invention.
Fig. 2 is the lateral plan of Fig. 1.
Fig. 3 is the first two-freedom arc electric motor structural representation of the present invention.
Fig. 4 is the second integral structure schematic diagram of the present invention.
Fig. 5 is the lateral plan of Fig. 4.
Fig. 6 is the second two-freedom arc electric motor structural representation of the present invention.
Fig. 7 is that two-freedom arc electric motor of the present invention drives control structure schematic diagram.
In figure: 1, lamp body 2, the first support 3, two-freedom arc electric motor 3-1, stator 3-2, the first mover 3-3, the second mover 3-4, magnetic links 3-5, winding 4, microcontroller 5, position transduser 6, universal-joint 7, the second support 8, the 3rd support.
The specific embodiment
According to Figure of description and specific embodiment, the present invention is further explained below.
As shown in Figure 1 and Figure 4, a kind of automobile front two-freedom turns to the straight drive system of camber line, comprise lamp body 1, the first support 2, two-freedom arc electric motor 3, microcontroller 4, position transduser 5, universal-joint 6, the second support 7 and the 3rd support 8, described lamp body 1 is arranged on the first support 2, on the first described support 2, universal-joint 6 is installed, described universal-joint 6 is positioned at the center of circle of two-freedom arc electric motor 3, and described microcontroller 4 is connected with position transduser 5 with two-freedom arc electric motor 3 by wire.
As shown in Figure 3, described two-freedom arc electric motor 3 comprises stator 3-1, the first mover 3-2 and the second mover 3-3, described stator 3-1 and the first mover 3-2 have magnetic links 3-4 back to Surface Mount in the one side of stator 3-1, and the first described mover 3-2 regards on the one side of stator 3-1 and the second mover 3-3 respectively a set of winding 3-5; Or as shown in Figure 6, described magnetic links 3-4 Surface Mount is upper in stator 3-1 and the second mover 3-3, and the first described mover 3-2 tow sides respectively have a set of winding 3-5; Or described stator 3-1 and the first mover 3-2 respectively have a set of winding 3-5 in the one side of stator 3-1, one side and the upper Surface Mount of the second mover 3-3 that the first described mover 3-2 regards to stator 3-1 have magnetic links 3-4; Or respectively there is a set of winding 3-5 on described stator 3-1 and the second mover 3-3, on the first described mover 3-2 tow sides, Surface Mount has magnetic links 3-4, the first described mover 3-2 is not only as the mover of stator 3-1 but also as the stator 3-1 of the second mover 3-3, the shape of the first described mover 3-2 is that criss cross and every limit are arcs, as shown in Figure 3 and Figure 6.
The first described support 2 is connected by universal-joint 6 with the second support 7, and the second described support 7 is vertical with stator 3-1 place plane; Described lamp body 1 afterbody is connected with the second mover 3-3 center-point by the 3rd support 8.
Described position transduser 5 is absolute type camber line coders, and described absolute type camber line coder is grating or magnetic grid.
Described lamp body 1 rotation direction and two-freedom arc electric motor 3 first mover 3-2 rotation direction on horizontal surface on horizontal surface are that consistent, described lamp body 1 rotation direction on vertical surface is consistent with the rotation direction of two-freedom arc electric motor 3 second mover 3-3 on vertical surface on circumference on circumference.
As shown in Figure 7, described microcontroller 4 is according to wheel steering signal and height sensor signal, adopt vector control strategy control two-freedom arc electric motor 3 drive lamp bodies 1 in the horizontal direction, vertical direction two-freedom rotates.
During use, microcontroller 4 is accepted bearing circle turn sign, according to speed meter, calculates lamp body 1 expectation steering angle.When turning indicator starts, microcontroller 4 thinks that wheel steering signal is effective, controls two-freedom arc electric motor 3 first mover 3-2 and directly drives lamp body 1 on horizontal surface, to turn to expected angle; When turning indicator is closed, microcontroller 4 does not respond bearing circle turn sign, only controls two-freedom arc electric motor 3 first mover 3-2 and drives lamp body 1 to be returned to original zero-bit.Microcontroller 4, according to front and back height sensor signal, is controlled two-freedom arc electric motor 3 second mover 3-3 mobile elevation angle of adjusting in time lamp body 1 on the first mover 3-2 simultaneously, guarantees that lamp body central axis is parallel with road surface.
Claims (10)
1. an automobile front two-freedom turns to the straight drive system of camber line, comprise lamp body, the first support, two-freedom arc electric motor, microcontroller, position transduser, universal-joint, the second support and the 3rd support, it is characterized in that: described lamp body is arranged on the first support, on the first described support, universal-joint is installed, described universal-joint is positioned at the center of circle of two-freedom arc electric motor, and described microcontroller is connected with position transduser with two-freedom arc electric motor by wire.
2. a kind of automobile front two-freedom according to claim 1 turns to the straight drive system of camber line, it is characterized in that described two-freedom arc electric motor comprises stator, the first mover and the second mover, described stator and the first mover have magnetic links back to Surface Mount in the one side of stator, and the first described mover regards on the one side of stator and the second mover respectively a set of winding.
3. a kind of automobile front two-freedom according to claim 1 turns to the straight drive system of camber line, it is characterized in that on described stator and the second mover, Surface Mount has magnetic links, and the first described mover tow sides respectively have a set of winding.
4. a kind of automobile front two-freedom according to claim 1 turns to the straight drive system of camber line, it is characterized in that described stator and the first mover respectively have a set of winding in the one side of stator, the first described mover regards to Surface Mount on the one side of stator and the second mover magnetic links.
5. a kind of automobile front two-freedom according to claim 1 turns to the straight drive system of camber line, and it is characterized in that respectively has a set of winding on described stator and the second mover, and on the first described mover tow sides, Surface Mount has magnetic links.
6. a kind of automobile front two-freedom according to claim 1 turns to the straight drive system of camber line, it is characterized in that the first described mover is not only as the mover of stator but also as the stator of the second mover, the shape of the first described mover is that criss cross and every limit are arcs.
7. a kind of automobile front two-freedom according to claim 1 turns to the straight drive system of camber line, it is characterized in that the first described support is connected by universal-joint with the second support, and the second described support is vertical with stator place plane; Described lamp body afterbody is connected with the second mover center-point by the 3rd support.
8. a kind of automobile front two-freedom according to claim 1 turns to the straight drive system of camber line, it is characterized in that described position transduser is absolute type camber line coder, and described absolute type camber line coder is grating or magnetic grid.
9. a kind of automobile front two-freedom according to claim 1 turns to the straight drive system of camber line, it is characterized in that described lamp body rotation direction and two-freedom arc electric motor the first mover rotation direction on horizontal surface on horizontal surface are that consistent, the described lamp body rotation direction on vertical surface is consistent with the rotation direction of two-freedom arc electric motor the second mover on vertical surface on circumference on circumference.
10. according to a kind of automobile front two-freedom described in claim 1-9, turn to the straight drive system of camber line, it is characterized in that described microcontroller adopts vector control strategy to control two-freedom arc electric motor according to wheel steering signal and front and back height sensor signal, thus drive lamp body in the horizontal direction, vertical direction two-freedom rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310689916.8A CN103692957B (en) | 2013-12-16 | 2013-12-16 | A kind of automobile front two-freedom turns to the straight drive system of camber line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310689916.8A CN103692957B (en) | 2013-12-16 | 2013-12-16 | A kind of automobile front two-freedom turns to the straight drive system of camber line |
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| CN103692957A true CN103692957A (en) | 2014-04-02 |
| CN103692957B CN103692957B (en) | 2015-12-09 |
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| CN201310689916.8A Expired - Fee Related CN103692957B (en) | 2013-12-16 | 2013-12-16 | A kind of automobile front two-freedom turns to the straight drive system of camber line |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163200A (en) * | 2014-08-30 | 2014-11-26 | 长城汽车股份有限公司 | Auxiliary semitrailer steering safety system |
| CN104670073A (en) * | 2015-02-28 | 2015-06-03 | 姚永平 | Suction type vehicle position beam indicator |
| CN108099760A (en) * | 2017-12-13 | 2018-06-01 | 芜湖润蓝生物科技有限公司 | A kind of headlight for vehicles convenient for adjusting angle |
| CN109703447A (en) * | 2017-10-26 | 2019-05-03 | 郑州宇通客车股份有限公司 | Vehicle and its head lamp system |
| CN109703446A (en) * | 2017-10-26 | 2019-05-03 | 郑州宇通客车股份有限公司 | Vehicle and its head lamp system, headlamp steering mechanism |
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| JPS6381207A (en) * | 1986-09-26 | 1988-04-12 | Koito Mfg Co Ltd | Method for deciding center position of body of rotation |
| CN2245010Y (en) * | 1995-10-15 | 1997-01-15 | 方小荣 | Automatic adjustable lamp for car |
| DE102004007958A1 (en) * | 2004-02-18 | 2005-09-22 | Hella Kgaa Hueck & Co. | System for controlling the horizontal pivoting angle of a vehicle lighting device comprises using a variable pivoting angle ratio between the pivoting angle of an outer headlamp unit and the pivoting angle of an inner headlamp unit |
| CN102182972A (en) * | 2011-03-28 | 2011-09-14 | 江苏洪昌科技股份有限公司 | Distributed light emitting diode (LED) optical fibre coupling lighting car lamp |
| CN203666496U (en) * | 2013-12-16 | 2014-06-25 | 江苏大学 | Two-degree-of-freedom steering arc direct drive system of automobile headlamp |
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2013
- 2013-12-16 CN CN201310689916.8A patent/CN103692957B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6381207A (en) * | 1986-09-26 | 1988-04-12 | Koito Mfg Co Ltd | Method for deciding center position of body of rotation |
| CN2245010Y (en) * | 1995-10-15 | 1997-01-15 | 方小荣 | Automatic adjustable lamp for car |
| DE102004007958A1 (en) * | 2004-02-18 | 2005-09-22 | Hella Kgaa Hueck & Co. | System for controlling the horizontal pivoting angle of a vehicle lighting device comprises using a variable pivoting angle ratio between the pivoting angle of an outer headlamp unit and the pivoting angle of an inner headlamp unit |
| CN102182972A (en) * | 2011-03-28 | 2011-09-14 | 江苏洪昌科技股份有限公司 | Distributed light emitting diode (LED) optical fibre coupling lighting car lamp |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163200A (en) * | 2014-08-30 | 2014-11-26 | 长城汽车股份有限公司 | Auxiliary semitrailer steering safety system |
| CN104163200B (en) * | 2014-08-30 | 2016-06-29 | 长城汽车股份有限公司 | A kind of semi-trailer direction changing supplementary security system |
| CN104670073A (en) * | 2015-02-28 | 2015-06-03 | 姚永平 | Suction type vehicle position beam indicator |
| CN109703447A (en) * | 2017-10-26 | 2019-05-03 | 郑州宇通客车股份有限公司 | Vehicle and its head lamp system |
| CN109703446A (en) * | 2017-10-26 | 2019-05-03 | 郑州宇通客车股份有限公司 | Vehicle and its head lamp system, headlamp steering mechanism |
| CN109703447B (en) * | 2017-10-26 | 2021-06-04 | 郑州宇通客车股份有限公司 | Vehicle and headlamp system thereof |
| CN108099760A (en) * | 2017-12-13 | 2018-06-01 | 芜湖润蓝生物科技有限公司 | A kind of headlight for vehicles convenient for adjusting angle |
| CN108099760B (en) * | 2017-12-13 | 2021-07-02 | 芜湖市创源新材料有限公司 | Automobile headlamp convenient for angle adjustment |
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| CN103692957B (en) | 2015-12-09 |
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