CN110395172A - A kind of car light steering device and control method - Google Patents
A kind of car light steering device and control method Download PDFInfo
- Publication number
- CN110395172A CN110395172A CN201910583891.0A CN201910583891A CN110395172A CN 110395172 A CN110395172 A CN 110395172A CN 201910583891 A CN201910583891 A CN 201910583891A CN 110395172 A CN110395172 A CN 110395172A
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- China
- Prior art keywords
- cam
- stepper motor
- angle
- lamp module
- connecting rod
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/076—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by electrical means including means to transmit the movements, e.g. shafts or joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
- B60Q1/10—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to vehicle inclination, e.g. due to load distribution
- B60Q1/115—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to vehicle inclination, e.g. due to load distribution by electric means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
- B60Q1/12—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to steering position
- B60Q1/122—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to steering position with electrical actuating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
Abstract
The present invention relates to automobile lamp lighting technical fields, more particularly to a kind of car light steering device and control method, for controlling the steering of car headlamp, including LED lamp module, pedestal, cam, connecting rod, two stepper motors, controller, driver, pressure sensor and obliquity sensor.Wherein, a stepper motor is fixedly installed on pedestal, and cam is connected with the output shaft of the motor, and stepper motor band moving cam rotates, and then connecting rod is driven to move up and down, and rotates upwardly and downwardly LED lamp module；The bottom of pedestal is connected with another stepper motor output shaft simultaneously, the stepper motor carries out left-right rotation with moving base and all components being installed on pedestal, the apparatus structure is simple, it is compact, car headlamp lamp module may be implemented using the device to control with the turning and fluctuating of vehicle body, it rotates upwardly and downwardly, to reach optimal illuminating effect.
Description
Technical field
The present invention relates to automobile lamp lighting technical field, more particularly to a kind of car light steering device and control method,
It is mainly used for the steering of automobile lamp.
Background technique
With the continuous development of automotive lighting, the technology of automobile lamp is being constantly progressive, and car light steering device has been at present
As a kind of trend, it is widely used on the automobile of high-end series.
The incidence of accident can be effectively reduced in the automobile for possessing steerable automobile lamp, for example, night, when automobile turning,
Car light steering device will make car light turn to certain angle, clear away driver's field of vision blind area, allow the operator to see front clearly
Road.When body sway, transfer will rotate upwardly and downwardly certain angle, so that light is irradiated along normal direction.
However, since car light steering device price is more high, currently, only using more on high-end series automobiles.And
High performance car light steering device structure is complex, increases the volume and manufacture difficulty of car light.
Summary of the invention
The technical problems to be solved by the present invention are: in order to overcome the shortcomings in the prior art, the present invention provides a kind of vehicle
Lamp transfer and control method can make lamp module one on left and right, up and down direction by the device and control method
Determine arbitrarily to rotate in angle, meets the lighting demand of complex road condition.
The present invention solves its technical problem technical solution to be taken: a kind of car light steering device and control method,
Including pedestal, LED lamp module and for realizing LED lamp module turn to steering mechanism, the steering mechanism include cam,
Connecting rod, the first stepper motor, second stepper motor, pressure sensor, obliquity sensor, controller and driver, wherein LED
On the base, and LED lamp module side and connecting rod one end are hinged for lamp module movable hanging, and the connecting rod other end is connected to cam
Crank slot in, and the left and right sides inside crank slot is equipped with pressure sensor, the tie-bar support structure on the middle part and pedestal of connecting rod
It is slidably connected, and tie-bar support structure limiting rod can only move in the vertical direction；The shaft of first stepper motor is connected to
In the rotation center hold of cam, driving cam rotation；The output shaft of second stepper motor is connected with the bottom of pedestal, passes through
The output shaft of two stepping motor is rotated together with all components on moving base and pedestal；The obliquity sensor is placed in automobile
Chassis on, for measuring the tilt angle of automobile；First stepper motor is connected with second stepper motor by driver
To controller, controller controls starting, stopping and the steering of the first stepper motor and second stepper motor.
Specifically, the cam is sector structure, and crank slot is arranged at the top of cam body, and rotation center hold is arranged convex
Take turns body bottom portion.
Further, the pedestal includes tie-bar support structure, bracket and chassis, and the bracket is fixed on chassis
Side, including two side plates and a support shaft, the support shaft both ends are connect with side plate top respectively, the tie-bar support structure
It is fixed above the chassis of bracket front end, including cantilever mast and the sliding sleeve that cantilever mast end is arranged in, the connecting rod is from cunning
It is passed through in set.
LED lamp module is made into the fluted structure of top tape, and is mounted on the bracket of pedestal, so that LED lamp
It can be slided on bracket, under the drive for the connecting rod that its trailing hinge structure is connected, certain angle can be rotated upwardly and downwardly.
Cam is sector structure, and fan-shaped central angle is 60 °, and the initial position of cam is located at 30 ° of corners, at this point, the lamp
Tool mould group be it is horizontal positioned, irradiation light be best direction of illumination, can be designed so that by this, automobile in the process of moving,
It either leans forward or hypsokinesis certain angle, cam can be by turning left or right-hand rotation certain angle makes lamp module always
Keep horizontal direction.
The device is designed to 1 ° of tilting of automobile, and motor band moving cam rotates 3 °, and car light mould group rotates 1 °, the step pitch of motor
Angle is 0.9 °, this is rotating upwardly and downwardly for accurate control lamp module, i.e., under this kind of control mode, the smallest rotation of car light
Angle is 0.3 °.The design can also control lamps and lanterns rotational angle and more refine, such as select the smaller motor of step angle, or
Person is designed to 1 ° of tilting of automobile, and motor rotates more than 4 ° or bigger of degree with moving cam, but this mode can sacrifice on car light
The range of lower angle rotatable can be avoided by increasing the central angle of sector.
The base radius of the cam is set as R0, cam is connected with connecting rod by roller, the rotating shaft and connecting rod of the roller
The distance between roller rotating shaft of top hinge mechanism is set as L0, set when the corner of cam is 0 °, i.e., connecting rod is located at most
When lower, the roller rotating shaft of connecting rod top hinge mechanism and the line of base seat support rotating shaft and the angle of horizontal direction are a,
And two rotating shaft distances in the horizontal direction are L1, the bottom surface of cam concave slot structure is at a distance from the cam base circle center of circle
For R1, then R1=L1(tana-tan(a-θ/3))+R0, θ ∈ (0 °~60 °) θ is the angle that cam is turned over from 0 ° of corner.If the dress
It sets and is designed to, once, cam rotates n ° to tilting of automobile, which is then R1=L1(tana-tan(a-θ/n))+R0, the formula
The as design curve formula of cam can make cam often turn over n ° using the formula, lamp module will up or down under
1 ° of rotation.
The fixed structure for the connecting rod drawn from pedestal, the structure can only move in the vertical direction for limiting rod.
First stepper motor is fixedly mounted on the base, and second stepper motor is mounted below pedestal, this kind of mounting means can make
It is non-interference to obtain rotation of the lamp module on left and right, up and down direction.Lamps and lanterns can be freely rotated.
The tilt angle of automobile obtains and sends to controller by the obliquity sensor measurement for being mounted on automobile chassis, control
Device controls the first stepper motor and turns an angle, and keeps lamp module horizontal.And in turning, lamp module answers gyration can
By acceleration transducer, velocity sensor, value measured by steering wheel angle sensor etc. is calculated by controller, and is controlled
Second stepper motor band moving base unitary rotation certain angle processed, allows lamp module to be irradiated to blind area.
A kind of car light rotating direction control method, comprising the following steps:
Step 101: the initial position of sector is located at 30 ° of corners, at this point, car light module is horizontally oriented.
Step 102: vehicle front needs to turn, and controller passes through measured by the acceleration transducer on automotive suspension
Acceleration value a1, velocity amplitude v and the steering wheel angle on the steering column below steering wheel measured by velocity sensor
The rotation of left and right directions needed for lamp module is calculated by formula θ 2=f (a1, v, θ 1) in angle value θ 1 measured by sensor
Angle, and control stepper motor and rotate corresponding angle.
Step 103: body of a motor car leans forward a certain angle beta for some reason, and the angle is by being installed on automobile chassis
Obliquity sensor measure and send to controller, controller controls motor 5 and turns left 3 β, drive of the cam in the first stepper motor
Under also turn left 3 β, LED lamp module rotates down β under the drive of connecting rod, guarantees that lamp module is horizontally situated.After vehicle body
Incline similarly.
Step 104: pressure sensor be used for the transfer insurance, such as occur certain surprisingly make cam turn left or
It turns right more than 30 °, then can trigger pressure sensor, controller can close stepper motor after receiving this signal, and invert electricity
The steering of machine.
The beneficial effects of the present invention are: a kind of car light steering device provided by the invention and control method, utilize the device
Car headlamp lamp module not only may be implemented to control with the turning and fluctuating of vehicle body, rotate upwardly and downwardly, to reach most
Good illuminating effect, and the left-right rotation of device lamp module with rotate upwardly and downwardly non-interference, any road conditions can be coped with
Challenge, has the characteristics that structure is simple, compact, cheap, precision is higher.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the schematic perspective view of preferred embodiment.
Fig. 2 is the structural schematic diagram of cam.
Fig. 3 is the structural schematic diagram of pedestal.
In figure: 1, LED lamp module, 2, pedestal, 21, support shaft, 22, tie-bar support structure, 23, chassis, 24, side plate,
3, cam, 31, crank slot, 32, rotation center hold, 33, ontology, 4, connecting rod, the 5, first stepper motor, 6, second stepper motor, 7,
Controller, 8, driver, 9, pressure sensor.
Specific embodiment
Presently in connection with attached drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way
Basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figure 1, a kind of car light steering device of the invention and control method, including pedestal 2,1 and of LED lamp module
For realizing LED lamp module 1 turn to steering mechanism, the steering mechanism include cam 3, connecting rod 4, the first stepper motor 5,
Second stepper motor 6, pressure sensor 9, obliquity sensor, controller 7 and driver 8, wherein 1 movable suspension of LED lamp module
It hangs on the base 2, and 1 side of LED lamp module and 4 one end of connecting rod are hinged, 4 other end of connecting rod is connected to the crank slot 31 of cam 3
It is interior, and the left and right sides inside crank slot 31 is equipped with pressure sensor 9, the middle part of connecting rod 4 and the tie-bar support structure 22 on pedestal 2
It is slidably connected, and 22 limiting rod 4 of tie-bar support structure can only move in the vertical direction；The shaft of first stepper motor 5 connects
It connects in the rotation center hold 32 of cam 3, driving cam 3 rotates；The bottom phase of the output shaft of second stepper motor 6 and pedestal 2
Connection, is rotated together by the output shaft of second stepper motor 6 with all components on moving base 2 and pedestal 2；The inclination angle
Sensor is placed on the chassis 23 of automobile, for measuring the tilt angle of automobile；First stepper motor 5 and the second stepping electricity
Machine 6 is connected to controller 7 by driver 8, and controller 7 controls the starting of the first stepper motor 5 and second stepper motor 6, stops
Only and turn to.
In the present embodiment, the model thunder of stepper motor matches 42CM06 two-phase stepping motor, which has noise
Small, small in size, precision is high, the big feature of torque, and driver 8 is that thunder matches DM422, and controller 7 is STM32F103 single-chip microcontroller, should
Single-chip microcontroller is cheap, is suitble to simple control.Pressure sensor 9 is ocean DAYSENSOR micro pressure sensor 9, volume
It is small, it is mountable to inside 3 crank slot 31 of cam, obliquity sensor is SST810 dynamic inclination sensor, has precision high, performance is excellent
Good, at low cost feature.Acceleration transducer is PCB 3-axis acceleration sensor 356B18, velocity sensor SKTOO
98AB9E731AG sensor, steering wheel angle sensor are FCA7300 rotary angle transmitter.
As shown in Fig. 2, cam 3 is sector structure, including ontology 33, crank slot 31 and rotation center hold 32, and crank slot 31 is set
It sets at 3 ontology of cam, 33 top, rotation center hold 32 is arranged in 3 ontology of cam, 33 bottom.Crank slot 31 is for limiting and 4 phase of connecting rod
The movement of roller even, pressure sensor 9 are installed on the left and right sides of 3 crank slot 31 of cam.Rotation center hold 32 is used for and first
The output shaft of stepper motor 5 is connected.Fan-shaped central angle is 60 °, and the initial position of cam 3 is located at 30 ° of corners, at this point, should
Lamps and lanterns mould group be it is horizontal positioned, irradiation light be best direction of illumination, can be designed so that by this, automobile is in driving process
In, it either leans forward or hypsokinesis certain angle, cam 3 can be by turning left or right-hand rotation certain angle makes lamp module
Remain horizontal direction.
It is illustrated in figure 3 the structural schematic diagram of pedestal 2, the pedestal 2 includes tie-bar support structure 22, bracket and chassis
23, bracket is used to support LED lamp module 1, and tie-bar support structure 22 can only move in the vertical direction for limiting rod 4,
Chassis 23 with the output shaft of second stepper motor 6 for being connected.The bracket is fixed at 23 top of chassis, including two sides
Plate 24 and a support shaft 21,21 both ends of support shaft are connected at the top of side plate 24 respectively, and the tie-bar support structure 22 is solid
The top of chassis 23 of bracket front end is set calmly, and including cantilever mast and the sliding sleeve that cantilever mast end is arranged in, the connecting rod 4 is from cunning
It is passed through in set.
The device is designed to 1 ° of tilting of automobile, and the first stepper motor 5 rotates 3 °, 1 turn of LED lamp module with moving cam 3
1 ° dynamic, the step angle of the first stepper motor 5 is 0.9 °, this is rotating upwardly and downwardly for accurate control lamp module, i.e., in this kind
Under control mode, the smallest rotational angle of car light is 0.3 °.The design can also control lamps and lanterns rotational angle and more refine, example
The smaller motor of step angle is such as selected, or is designed to 1 ° of tilting of automobile, motor rotates more than 4 ° or bigger of degree with moving cam 3
Number, but this mode can sacrifice the range of car light or more angle rotatable, can be kept away by increasing the central angle of sector 3
Exempt from.
The base radius of the cam 3 is set as R0, cam 3 is connected with connecting rod 4 by roller, the rotating shaft of the roller and company
The distance between the roller rotating shaft of 4 top hinge mechanism of bar is set as L0, set when the corner of cam 3 is 0 °, i.e. 4, connecting rod
When lowest part, the roller rotating shaft and the line of 2 bracket rotating shaft of pedestal and the folder of horizontal direction of 4 top hinge mechanism of connecting rod
Angle is a, and two rotating shaft distances in the horizontal direction are L1, bottom surface and 3 basic circle of the cam circle of 3 concave slot structure of cam
The distance of the heart is R1, then R1=L1(tana-tan(a-θ/3))+R0, θ ∈ (0 °~60 °) θ is cam 3 from the angle that 0 ° of corner turns over
Degree.If the device is designed to, once, cam 3 rotates n ° to tilting of automobile, which is then R1=L1(tana-tan(a-θ/n))
+R0, which is the design curve formula of cam 3, cam 3 can be made often to turn over n ° using the formula, lamp module is just
It can lower 1 ° of rotation up or down.
The tie-bar support structure 22 drawn from pedestal 2, the structure can only move in the vertical direction for limiting rod 4
It is dynamic.First stepper motor 5 is fixedly mounted on the base 2, and second stepper motor 6 is mounted on 2 lower section of pedestal, this kind of mounting means
Rotation of the lamp module on left and right, up and down direction can be made non-interference.Lamps and lanterns can be freely rotated.
The tilt angle of automobile is obtained by the obliquity sensor measurement for being mounted on automobile chassis 23 and is sent to controller 7,
Controller 7 controls the first stepper motor 5 and turns an angle, and keeps lamp module horizontal.And in turning, lamp module should turn
Angle can be by acceleration transducer, velocity sensor, and value measured by steering wheel angle sensor etc. is calculated by controller 7
It arrives, and controls second stepper motor 6 with 2 unitary rotation certain angle of moving base, allow lamp module to be irradiated to the visual field blind
Area.
A kind of car light rotating direction control method, comprising the following steps:
Step 101: the initial position of sector 3 is located at 30 ° of corners, at this point, car light module is horizontally oriented.
Step 102: vehicle front needs to turn, and controller 7 is surveyed by the acceleration transducer being located on automotive suspension
Acceleration value a1, velocity amplitude v measured by velocity sensor and the steering wheel on the steering column below steering wheel turn
Angle value θ 1 measured by angle transducer is calculated left and right directions needed for lamp module by formula θ 2=f (a1, v, θ 1) and turns
Dynamic angle, and control stepper motor and rotate corresponding angle.
Step 103: body of a motor car leans forward a certain angle beta for some reason, and the angle is by being installed on automobile chassis 23
The obliquity sensor at place measures and sends to controller 7, and controller 7 controls 3 β of left-hand rotation of motor 5, and cam 3 is in the first stepper motor 5
Drive under also turn left 3 β, LED lamp module 1 rotates down β under the drive of connecting rod 4, guarantees that lamp module is located at horizontal position
It sets.Vehicle body hypsokinesis is similarly.
Step 104: pressure sensor 9 be used for the transfer insurance, such as occur certain surprisingly make cam 3 turn left or
Person turns right more than 30 °, then can trigger pressure sensor 9, and controller 7 can close stepper motor after receiving this signal, and anti-
The steering of rotating motor.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff
Various changes and amendments can be carried out without departing from the scope of the present invention completely.The technical scope of this invention is not
The content being confined on specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (8)
1. a kind of car light steering device, it is characterised in that: turn including pedestal, LED lamp module and for realizing LED lamp module
To steering mechanism, the steering mechanism include cam, connecting rod, the first stepper motor, second stepper motor, pressure sensor,
Obliquity sensor, controller and driver, wherein LED lamp module activities are hung on the base, and LED lamp module side
Hinged with connecting rod one end, the connecting rod other end is connected in the crank slot of cam, and the left and right sides inside crank slot is equipped with pressure sensing
Device, the tie-bar support structure on the middle part and pedestal of connecting rod is slidably connected, and tie-bar support structure limiting rod can only be vertical
It is moved on direction；The shaft of first stepper motor is connected in the rotation center hold of cam, driving cam rotation；Second stepping electricity
The output shaft of machine is connected with the bottom of pedestal, by the output shaft of second stepper motor with all on moving base and pedestal
Component rotates together；The obliquity sensor is placed on the chassis of automobile, for measuring the tilt angle of automobile；The first step
Controller is connected to by driver into motor and second stepper motor, controller controls the first stepper motor and the second stepping electricity
Starting, stopping and the steering of machine.
2. car light steering device as described in claim 1, it is characterised in that: the cam is sector structure, and crank slot is arranged
At the top of cam body, rotation center hold is arranged in cam body bottom.
3. car light steering device as claimed in claim 2, it is characterised in that: the central angle of the cam is 60 °.
4. car light steering device as described in claim 1, it is characterised in that: the pedestal includes tie-bar support structure, bracket
And chassis, the bracket is fixed above chassis, including two side plates and a support shaft, the support shaft both ends difference
It is connect with side plate top, the tie-bar support structure is fixed above the chassis of bracket front end, including cantilever mast and setting
Sliding sleeve in cantilever mast end, the connecting rod are passed through out of sliding sleeve.
5. car light steering device according to any one of claims 1-4, it is characterised in that: it is described convex for defining the corner of cam
The angle of straight line where taking turns the line and connecting rod in the leftmost side boundary in crank slot and the basic circle center of circle of the cam, with the cam
The basic circle circle center line connecting of leftmost side boundary in crank slot and the cam is 0 ° of corner, the rightmost side boundary in the cam crank slot with
The basic circle circle center line connecting of the cam is 60 ° of corners, i.e., the maximum angle rotatable of the cam is 60 °；The initial bit of the cam
Setting in 30 ° of corners, and when vehicle body does not tilt, which makes LED lamp module be located at level, and the irradiation side of lamps and lanterns
To for best direction of illumination.
6. car light steering device as claimed in claim 5, it is characterised in that: the pitch range of the LED lamp module be-
It is 10 °~+10 °, corresponding with the tilt angle of the body of a motor car；When the front-wheel of the automobile be higher than rear-wheel when, i.e., vehicle body updip when, should
Lamp module will have a down dip identical angle to keep lamps and lanterns to be horizontally situated, and vehicle body has a down dip similarly；And under the body of a motor car is every
Incline 1 °, cam will turn right 3 °, and 1 ° of the every updip of body of a motor car, cam will turn left 3 °.It is 0.9 ° in the step angle of the first stepper motor
In the case of, i.e., the smallest angle rotatable of car light module is 0.3 °.
7. car light steering device as claimed in claim 6, it is characterised in that: set the base radius of the cam as R0, cam with
Connecting rod is connected by roller, and the distance between the rotating shaft of the roller and the roller rotating shaft of connecting rod top hinge mechanism are set as
L0, it sets when the corner of cam is 0 °, i.e., when connecting rod is located at lowest part, the roller rotating shaft and base of connecting rod top hinge mechanism
The line of axis and the angle of horizontal direction of seat upper bracket are a, and two rotating shaft distances in the horizontal direction are L1, convex
The bottom surface for taking turns concave slot structure is R at a distance from the cam base circle center of circle1, then R1=L1(tana-tan(a-θ/3))+R0, θ ∈
(0 °~60 °), θ are the angle that cam turns over.
8. a kind of car light rotating direction control method, it is characterised in that: including car light steering device described in the claims 8, also
The following steps are included:
Step 101: under normal operation, LED lamp module is horizontally oriented, and cam is located at 30 ° of corners；
Step 102: vehicle front needs to turn, and controller measured by the acceleration transducer on automotive suspension by adding
Velocity amplitude v measured by velocity amplitude a1, velocity sensor and the sensing of the steering wheel angle on the steering column below steering wheel
The angle of the rotation of left and right directions needed for lamp module is calculated by formula θ 2=f (a1, v, θ 1) by angle value θ 1 measured by device
θ 2 is spent, and controls stepper motor and rotates corresponding angle；
Step 103: when vehicle body leans forward a certain angle beta, which is measured and is passed by the obliquity sensor for being installed on automobile chassis
Give controller, controller controls the first stepper motor and turns left 3 β, and cam also turns left 3 β under the drive of the first stepper motor,
LED lamp module rotates down β under the drive of connecting rod, guarantees that LED lamp module is horizontally situated；When body of a motor car hypsokinesis
When a certain angle а, controller controls the first stepper motor right-hand rotation 3a, and cam is also turned right 3a under the drive of the first stepper motor, protects
Card LED lamp module is horizontally situated.
Step 104: pressure sensor is used for the insurance of the transfer, surprisingly makes cam turn left or turn right when certain occurs
More than 30 °, then pressure sensor can be triggered, controller can close the first stepper motor after receiving this pressure signal, and make
The steering of first stepper motor is reversed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910583891.0A CN110395172A (en) | 2019-07-01 | 2019-07-01 | A kind of car light steering device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910583891.0A CN110395172A (en) | 2019-07-01 | 2019-07-01 | A kind of car light steering device and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110395172A true CN110395172A (en) | 2019-11-01 |
Family
ID=68323690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910583891.0A Pending CN110395172A (en) | 2019-07-01 | 2019-07-01 | A kind of car light steering device and control method |
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Cited By (1)
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| CN112268262A (en) * | 2020-11-12 | 2021-01-26 | 常州星宇车灯股份有限公司 | AFS headlamp and control method thereof |
| CN112268262B (en) * | 2020-11-12 | 2024-02-23 | 常州星宇车灯股份有限公司 | AFS headlamp and control method thereof |
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