CN110723063B - Magnetomotive car lamp self-adapting device and control method thereof - Google Patents

Magnetomotive car lamp self-adapting device and control method thereof Download PDF

Info

Publication number
CN110723063B
CN110723063B CN201911002803.XA CN201911002803A CN110723063B CN 110723063 B CN110723063 B CN 110723063B CN 201911002803 A CN201911002803 A CN 201911002803A CN 110723063 B CN110723063 B CN 110723063B
Authority
CN
China
Prior art keywords
bulb
rotation angle
controller
front wheel
support
Prior art date
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.)
Active
Application number
CN201911002803.XA
Other languages
Chinese (zh)
Other versions
CN110723063A (en
Inventor
姚江云
吴方圆
曹乃文
谢友慧
蔡洪炜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liuzhou Institute of Technology
Original Assignee
Liuzhou Institute of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liuzhou Institute of Technology filed Critical Liuzhou Institute of Technology
Priority to CN201911002803.XA priority Critical patent/CN110723063B/en
Publication of CN110723063A publication Critical patent/CN110723063A/en
Application granted granted Critical
Publication of CN110723063B publication Critical patent/CN110723063B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B60Q1/08—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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

The present invention aims to provide a magnetomotive vehicle lamp self-adapting device, comprising: bulb, lampshade, elastic piece, permanent magnet, magnetic field generator, connecting seat, support, front wheel steering angle sensor, controller U and power supply; the bulb is fixedly arranged in the lampshade, the support is cylindrical, the rear end of the support is closed, and the front end of the support is open; connecting seats are respectively arranged on the upper side and the lower side of the inner side wall of the front end of the support; the upper side and the lower side of the rear part of the outer side wall of the lampshade are arranged on the support through two rotating shafts, and the lampshade can swing in the left-right direction of the support based on the rotating shafts; elastic pieces are respectively arranged in the middle of the left side and the right side of the inner side wall of the support; a permanent magnet is arranged in the center of the top surface of the lampshade; the magnetic field generator is arranged on the middle part of the inner bottom surface of the support along the left and right sides of the support. The self-adaptive device overcomes the defects of the prior art and has the characteristics of reasonable structure, convenience in control and stable operation. The invention also provides a control method of the magnetomotive car lamp self-adapting device.

Description

Magnetomotive car lamp self-adapting device and control method thereof
Technical Field
The invention relates to the field of automobile lamp control devices, in particular to a magnetomotive automobile lamp self-adaptive device and a control method thereof.
Background
In the conventional automotive lighting device, there are many problems in the conventional headlamp system in actual use, and since the housing of the lamp is fixed to the vehicle body without a turning function, the irradiation direction of the headlamp is kept consistent with the vehicle body. When a vehicle turns, particularly when the vehicle turns on dangerous mountain roads on the road side or urban roads without street lamps at night, the illumination angle cannot be adjusted by the vehicle lamps, and the vehicle cannot irradiate the inner side of the curve; especially, when the vehicle is in rainy and foggy weather, the road condition illumination condition of the front curve is more fuzzy, and the vehicle lamp which can not rotate greatly threatens the night driving safety of a driver and has a plurality of potential threats.
Disclosure of Invention
The invention aims to provide a magnetic-driven car lamp self-adaptive device, which overcomes the defects of the prior art and has the characteristics of reasonable structure, convenience in control and stability in operation.
The technical scheme of the invention is as follows:
a magnetomotive vehicular lamp adaptive apparatus comprising: bulb, lampshade, elastic piece, permanent magnet, magnetic field generator, connecting seat, support, front wheel steering angle sensor, controller U1, power supply;
the bulb is fixedly arranged in the lampshade, the support is cylindrical, the rear end of the support is closed, and the front end of the support is open; the upper side and the lower side of the inner side wall of the front end of the support are respectively provided with a connecting seat, the tail end of the connecting seat extends inwards along the radial direction of the support, and a rotating shaft is arranged on the tail end; the upper side and the lower side of the rear part of the outer side wall of the lampshade are arranged on the support through two rotating shafts, and the lampshade can swing in the left-right direction of the support based on the rotating shafts; the middle parts of the left side and the right side of the inner side wall of the support are respectively provided with an elastic piece, the tail ends of the elastic pieces extend towards the lampshade along the radial direction and are fixedly connected with the outer side wall of the lampshade, and in a natural state, the two elastic pieces are in a stretching state to pull the lampshade so that the axial direction of the lampshade is overlapped with the axial direction of the support; the center of the top surface of the lampshade is provided with a permanent magnet, and the magnetic force line direction of the permanent magnet is the front-back direction of the support; the magnetic field generator is arranged on the middle part of the inner bottom surface of the support along the left and right sides of the support, when magnetic force is generated by the magnetic field generator, the direction of magnetic force lines of the magnetic field generator is the left and right direction of the support, and the direction of the magnetic force lines of the magnetic field generator can be switched from left to right or from right to left;
the front wheel steering angle sensor and the magnetic field generator are electrically connected with the controller U1, and the front wheel steering angle sensor is used for detecting a steering angle signal of a front wheel of the automobile and sending the steering signal to the controller U1; the controller U1 presets a corresponding data table among the rotation angle of the front wheel of the automobile, the rotation angle of the bulb and the control signals output by the controller U1, wherein the corresponding data table comprises a plurality of data setsThe corresponding principle of the corresponding data table is as follows: setting the maximum value theta of the rotation angle of the front wheel of the automobile m Maximum value omega of bulb rotation angle m For a group of corresponding automobile front wheel rotation angles theta and bulb rotation angles omega, a formula is establishedThe corresponding bulb rotation angle omega is calculated according to the rotation angle theta of the front wheels of the automobile, the corresponding set of rotation angles of the front wheels of the automobile and the directions of the bulb rotation angles are the same, and the bulb rotation angles and the directions are controlled by control signals output by the controller U1: the control signal output by the controller U1 is transmitted to the magnetic field generator to control the magnetic field direction and the magnetic force of the magnetic field generator, so that the permanent magnet and the lampshade are driven to deflect in the corresponding left-right direction through the interaction of the magnetic field and the permanent magnet;
the controller U1 sends corresponding control signals to the magnetic field generator according to parameters in the data table corresponding to the received steering signals, and the magnetic field generator is used for generating magnetic force with corresponding magnetic field direction and corresponding strength after receiving the control signals, and attracting the permanent magnet to drive the control lampshade to rotate to a corresponding angle left and right; the magnetic field generator and the controller U1 are electrically connected with a power supply and are powered by the power supply.
Preferably, the magnetic field generator comprises a core T, a spiral coil L, a field effect transistor MOS1, a field effect transistor MOS2, a diode D1, a diode D2, an amplifier A1, a resistor R2 and a resistor R3;
the spiral coil L is wound on the iron core T to form an electromagnet; the 1 st pin of the controller U1 is connected with the grid electrode of the field effect transistor MOS1, the source electrode of the field effect transistor MOS1 is connected with the anode of the diode D1 and the ground wire, and the drain electrode of the field effect transistor MOS1 is respectively connected with the cathode of the diode D1, the cathode of the diode D2 and the drain electrode of the field effect transistor MOS 2;
the grid electrode of the field effect transistor MOS2 is connected with the 2 nd pin of the controller U1, the source electrode of the field effect transistor MOS2 is connected with the anode of the diode D2 and one end of the spiral coil L, the other end of the spiral coil L is connected with one end of the resistor R3, and the other end of the resistor R3 is connected with the output end of the amplifier A1; the inverting terminal of the amplifier A1 is connected with the 4 th pin of the controller U1;
one end of the resistor R1 is connected with a +5V power supply, the other end of the resistor R1 is connected with the positive phase end of the amplifier A1 and one end of the resistor R2, and the other end of the resistor R2 is connected with a ground wire;
the resistance value of the resistor R1 is equal to that of the resistor R2, and the positive electrode of the amplifier A1 is connected with a +12V power supply and the negative electrode is connected with a-12V power supply;
the 3 rd pin of the controller U1 is connected with a data output end SIN of the front wheel steering angle sensor.
Preferably, the corresponding data table among the rotation angle of the front wheel of the automobile, the rotation angle of the bulb and the control signal output by the controller U1 is shown in table 1:
wherein the left turning angle is positive and the right turning angle is negative; θ m Is the maximum value omega of the rotation angle of the front wheel of the automobile m Is the maximum value of the rotation angle of the bulb, theta 1 The rotation angle of the left turn of the front wheel of the automobile is smaller than 0 DEG theta 1 ＜θ m ；θ 2 The rotation angle of the right turn of the front wheel of the automobile is 0 degrees larger than theta 2 ＞-θ m Delta is omega for controlling left turn of bulb m PWM duty cycle of the 1 st foot of the controller U1, and delta is also omega for controlling the right turn of the bulb m The PWM duty cycle of pin 2 of the controller U1.
Preferably, the bulb (1) is rotated in a range of + -20 DEG and the front wheel is rotated in a range of + -54 deg.
Preferably, the lampshade (2) is a truncated cone arranged along the front-back direction of the support (7), the top surface of the truncated cone is closed, and the bottom surface of the truncated cone is open and faces to the front.
Preferably, the model of the front wheel steering angle sensor is WYT-AT-1 contactless angle sensor.
Preferably, the controller U1 is of the type AT89C51, and the amplifier A1 is of the type LM324.
Preferably, the types of the field effect transistor MOS1 and the field effect transistor MOS2 are XP151A.
The invention also provides a control method of the vehicle lamp, which utilizes the magnetic driving type vehicle lamp self-adapting device and comprises the following steps:
A. in the running process of the automobile, a front wheel steering angle sensor detects a steering angle signal of an automobile front wheel;
B. the controller U1 is preset with a corresponding data table among the front wheel rotation angle of the automobile, the bulb rotation angle and the control signals output by the controller U1, and the principle of the corresponding data table is as follows: setting the maximum value of the rotation angle of the front wheel of the automobile to be 54 degrees, setting the maximum value of the rotation angle of the bulb to be 20 degrees, and for a corresponding group of rotation angles theta of the front wheel of the automobile and the rotation angle omega of the bulb,
the direction is controlled by a control signal output by the controller U1; namely, when the left rotation angle of the front wheel of the automobile is theta 1 When the bulb turns left, the turning angle is 20 degrees theta 1 54 °/; when the turning angle of the right turn of the front wheel of the automobile is theta 2 When the bulb turns right, the turning angle of the bulb is 20 degrees theta 2 54 °/; wherein: 0 DEG < theta 1 ＜54°，0°＞θ 2 ＞-54°；
The controller U1 is also preset with a corresponding relation between the bulb rotation angle and the control signal, and the principle of the corresponding relation is as follows: for a group of corresponding bulb rotating angles and control signals, the control signals can control the current passing through the spiral coil L so as to control the magnetic field generator to generate magnetic force to drive the bulb to rotate to the corresponding bulb rotating angle;
C. the controller U1 determines the rotation angle of the bulb corresponding to the rotation angle signal according to the rotation angle signal of the automobile front wheel, so as to determine a corresponding control signal, and sends the control signal to enable the magnetic field generator to generate magnetic force, thereby attracting the permanent magnet to move and driving the lampshade to rotate, and realizing the self-adaptive control of the lampshade.
Preferably, the corresponding relation among the rotation angle of the front wheel of the automobile, the rotation angle of the bulb and the control signals is shown in table 2:
setting the maximum rotation angle of the bulb to be +/-20 degrees, the maximum rotation angle of the front wheel to be +/-54 degrees, the left rotation angle to be positive and the right rotation angle to be negative; the PWM duty ratio of the 1 st pin of the controller U1 in the table is the duty ratio of a PWM control signal output by the 1 st pin of the controller U1 and is used for controlling the on-off of the MOS 1; the PWM duty ratio of the 2 nd pin of the controller U1 in the table is the duty ratio of the PWM control signal output by the 2 nd pin of the controller U1, and is used for controlling the on-off of the MOS 2.
The magnetic-driven car lamp self-adaptive device acquires the current steering state of the car by adopting the front wheel steering sensor, and the steering state of the car in operation corresponds to the steering angle of the bulb, so that the effect that the bulb follows the car steering is realized, each operating state corresponds to the control signal of the controller U1 respectively, the control signal and the magnetic field generator are combined to realize the control of the magnetic force, so that the rotating angle of the bulb is controlled, the calculation difficulty of a system is reduced, the real-time performance of the system is improved, and the timeliness and the follow-up effect of the car lamp follow-up are improved; the stable connection and flexible rotation of the lampshade are realized through the combined structure of the elastic piece and the connecting seat, and the stability and steering fluency of the lampshade in the running process are ensured; the combination of the controller, the amplifier and the field effect transistor is adopted in the controller U1, so that flexible control of the coil and the iron core is realized, the complexity of the system is reduced, and meanwhile, the convenience of maintenance is improved.
Drawings
Fig. 1 is a schematic structural view (top view) of a magnetomotive vehicle lamp adaptive device provided by the invention;
fig. 2 is a schematic structural view (side view) of the magnetomotive vehicle lamp adaptive device provided by the invention;
FIG. 3 is a circuit configuration diagram of a magnetic field generator and a controller U1 of the magnetomotive vehicle lamp adaptive device provided by the invention;
the names and serial numbers of the parts in the figure are as follows:
1 is a bulb, 2 is a lampshade, 3 is an elastic piece, 4 is a permanent magnet, 5 is a magnetic field generator, 6 is a connecting seat, 7 is a support, 8 is a rotating shaft, and SIN is a data output end of a front wheel steering angle sensor.
Detailed Description
The invention is described in detail below with reference to the drawings and examples.
Example 1
As shown in fig. 1-2, the magnetically driven vehicle lamp adaptive device provided in this embodiment includes: bulb 1, lamp shade 2, elastic piece 3, permanent magnet 4, magnetic field generator 5, connecting seat 6, support 7, front wheel steering angle sensor, controller U1, power;
the bulb 1 is fixedly arranged in the lampshade 2, the support 7 is cylindrical, the rear end of the support is closed, and the front end of the support is open; the upper side and the lower side of the inner side wall of the front end of the support 7 are respectively provided with a connecting seat 6, the tail end of the connecting seat 6 extends inwards along the radial direction of the support 7, and a rotating shaft 8 is arranged on the tail end; the upper side and the lower side of the rear part of the outer side wall of the lampshade 2 are arranged on the support 7 through two rotating shafts 8, and the lampshade 2 can swing in the left-right direction of the support 7 based on the rotating shafts 8; the middle parts of the left side and the right side of the inner side wall of the support 7 are respectively provided with an elastic piece 3, the tail ends of the elastic pieces 3 extend towards the lampshade 2 along the radial direction and are fixedly connected with the outer side wall of the lampshade 2, and in a natural state, the two elastic pieces 3 are in a stretching state to pull the lampshade 2 so that the axial direction of the lampshade 2 coincides with the axial direction of the support 7; the center of the top surface of the lampshade 2 is provided with a permanent magnet 4, and the magnetic force line direction of the permanent magnet 4 is the front-back direction of the support 7; the magnetic field generator 5 is arranged on the middle part of the inner bottom surface of the support 7 along the left and right sides of the support 7, and when the magnetic force is generated by the magnetic field generator 5, the magnetic force line direction is the left and right direction of the support 7 and can be switched from left to right or from right to left;
the front wheel steering angle sensor and the magnetic field generator 5 are electrically connected with the controller U1The front wheel steering angle sensor is used for detecting a steering angle signal of an automobile front wheel and sending the steering signal to the controller U1; the controller U1 presets a corresponding data table among the rotation angle of the front wheel of the automobile, the rotation angle of the bulb and the control signals output by the controller U1, and the corresponding principle of the corresponding data table is as follows: setting the maximum value theta of the rotation angle of the front wheel of the automobile m Maximum value omega of bulb rotation angle m For a group of corresponding automobile front wheel rotation angles theta and bulb rotation angles omega, a formula is establishedThe corresponding bulb rotation angle omega is calculated according to the rotation angle theta of the front wheels of the automobile, the corresponding set of rotation angles of the front wheels of the automobile and the directions of the bulb rotation angles are the same, and the bulb rotation angles and the directions are controlled by control signals output by the controller U1: the control signal output by the controller U1 is transmitted to the magnetic field generator 5 to control the magnetic field direction and the magnetic force of the magnetic field generator 5, so that the permanent magnet 4 and the lampshade 2 are driven to correspondingly deflect in the left-right direction through the interaction of the magnetic field and the permanent magnet 4;
the controller U1 sends corresponding control signals to the magnetic field generator 5 according to parameters in a data table corresponding to the received steering signals, and the magnetic field generator 5 is used for generating magnetic force with corresponding magnetic field directions and corresponding intensities after receiving the control signals, and attracting the permanent magnet 4 to drive the control lampshade 2 to rotate left and right to corresponding angles; the magnetic field generator 5 and the controller U1 are electrically connected with a power supply and are powered by the power supply;
as shown in fig. 3, the magnetic field generator includes a core T, a spiral coil L, a field effect transistor MOS1, a field effect transistor MOS2, a diode D1, a diode D2, an amplifier A1, a resistor R2 and a resistor R3,
the spiral coil L is wound on the iron core T, the 1 st pin of the controller U1 is connected with the grid electrode of the field effect transistor MOS1, the source electrode of the field effect transistor MOS1 is connected with the anode of the diode D1 and the ground wire, and the drain electrode of the field effect transistor MOS1 is respectively connected with the cathode of the diode D1, the cathode of the diode D2 and the drain electrode of the field effect transistor MOS 2;
the grid electrode of the field effect transistor MOS2 is connected with the 2 nd pin of the controller U1, the source electrode of the field effect transistor MOS2 is connected with the anode of the diode D2 and one end of the spiral coil L, the other end of the spiral coil L is connected with one end of the resistor R3, and the other end of the resistor R3 is connected with the output end of the amplifier A1; the inverting terminal of the amplifier A1 is connected with the 4 th pin of the controller U1;
one end of the resistor R1 is connected with a +5V power supply, the other end of the resistor R1 is connected with the positive phase end of the amplifier A1 and one end of the resistor R2, and the other end of the resistor R2 is connected with a ground wire;
the resistance value of the resistor R1 is equal to that of the resistor R2, and the positive electrode of the amplifier A1 is connected with a +12V power supply and the negative electrode is connected with a-12V power supply;
the 3 rd pin of the controller U1 is connected with a data output end SIN of the front wheel steering angle sensor;
the lampshade 2 is a truncated cone arranged along the front-back direction of the support 7, the top surface of the truncated cone is closed, and the bottom surface of the truncated cone is open and faces to the front;
the model of the front wheel steering angle sensor is a WYT-AT-1 contactless angle sensor;
the model of the controller U1 is AT89C51, and the model of the amplifier A1 is LM324;
the model of the field effect transistor MOS1 and the field effect transistor MOS2 is XP151A.
The control method for the vehicle lamp provided by the embodiment utilizes the magnetomotive vehicle lamp self-adaptive device, and comprises the following steps:
A. in the running process of the automobile, a front wheel steering angle sensor detects a steering angle signal of an automobile front wheel;
B. the controller U1 is preset with a corresponding data table among the front wheel rotation angle, the bulb rotation angle and the control signals output by the controller, and the principle of the corresponding data table is as follows: setting the maximum value of the rotation angle of the front wheel of the automobile to be 54 degrees, setting the maximum value of the rotation angle of the bulb to be 20 degrees, and setting a corresponding group of rotation angle theta of the front wheel of the automobile and rotation angle omega of the bulb to beThe corresponding group of automobile front wheel rotation angles and the bulb rotation angles are the same in direction, and the direction of the bulb rotation angles is controlled by a control signal output by the controller U1; namely, when the left rotation angle of the front wheel of the automobile is theta 1 When the bulb turns left, the turning angle is 20 degrees theta 1 54 °/; when the turning angle of the right turn of the front wheel of the automobile is theta 2 When the bulb turns right, the turning angle of the bulb is 20 degrees theta 2 54 °/; wherein: 0 DEG < theta 1 ＜54°，0°＞θ 2 ＞-54°；
The controller U1 is also preset with a corresponding relation between the bulb rotation angle and the control signal, and the principle of the corresponding relation is as follows: for a group of corresponding bulb rotating angles and control signals, the control signals can control the current passing through the spiral coil L so as to control the magnetic field generator to generate magnetic force to drive the bulb to rotate to the corresponding bulb rotating angle;
C. the controller U1 determines the rotation angle of the bulb corresponding to the rotation angle signal according to the rotation angle signal of the automobile front wheel, so as to determine a corresponding control signal, and sends the control signal to enable the magnetic field generator to generate magnetic force, thereby attracting the permanent magnet to move and driving the lampshade to rotate, and realizing the self-adaptive control of the lampshade;
the corresponding relation among the rotation angle of the front wheel of the automobile, the rotation angle of the bulb and the control signal is shown in table 2:
wherein the maximum rotation angle of the bulb 1 is set to be +/-20 degrees, the maximum rotation angle of the front wheel is set to be +/-54 degrees, the left rotation angle is set to be positive, and the right rotation angle is set to be negative; the PWM duty ratio (1 st foot) in the table is the duty ratio of a PWM control signal output by the 1 st foot of the controller U1 and is used for controlling the on-off of the MOS 1; the PWM duty ratio (the 2 nd pin) in the table is the duty ratio of a PWM control signal output by the 2 nd pin of the controller U1 and is used for controlling the on-off of the MOS 2; delta in the present embodiment is a PWM duty value at the maximum rotation angle of the bulb 1, and is set to 0.8 in the present embodiment.
The specific control procedure is exemplified as follows:
when the rotation angle data detected by the front wheel rotation angle sensor is positive, the front wheel rotates left, the 4 th pin of the controller U1 outputs low level 0V, the positive phase end voltage of the amplifier A1 is larger than the negative phase end voltage, the output end of the amplifier A1 outputs +12V voltage, the diode D2 and the field effect tube MOS1 are conducted, the field effect tube MOS2 is turned off, current flows through the resistor R3, the spiral coil L, the diode D2 and the field effect tube MOS1, therefore, the magnetic field direction of the spiral coil L of the magnetic field generator is N pole on the left side and S pole on the right side (as shown in figure 1), one side of the permanent magnet 4 close to the magnetic field generator is N pole, therefore, the lamp shade 2 rotates anticlockwise (leftwards) under the action of magnetic force, the lamp shade 2 rotates leftwards, the controller U1 converts the magnitude of the rotation angle of the front wheel of the automobile into PWM duty ratio, the conduction time of the field effect tube MOS1 is controlled by the 1 st pin outputting PWM control signals, the current magnitude in the spiral coil L and the magnetic field intensity generated by the spiral coil L are indirectly controlled, the magnetic field force generated by the spiral coil L is fixed on the lamp shade 2, the magnetic force generated by the spiral coil L4 is balanced with the elastic force of the magnetic force generated by the magnetic force of the magnetic field generator, and the elastic force is driven by the elastic force of the lamp shade 2 under the action of the elastic force 1, and the elastic force is controlled to realize the effect of the magnetic force balance of the magnetic force of the lamp shade 2;
when the data detected by the front wheel steering angle sensor is negative, the front wheel turns right, the 4 th pin of the controller U1 outputs low level +5V, the voltage of the reverse phase end of the amplifier A1 is larger than that of the positive phase end, the output end of the amplifier A1 outputs-12V voltage, the diode D1 and the field effect tube MOS2 are conducted, the field effect tube MOS1 is turned off, current flows through the diode D1, the field effect tube MOS2, the spiral coil L and the resistor R3 from the ground wire to the amplifier A1, therefore, the left side of the magnetic field direction of the spiral coil L is S pole and the right side N pole, one side of the permanent magnet 4 close to the magnetic field generator is N pole, the lamp shade 2 rotates clockwise (rightward) under the action of magnetic force (as shown in figure 1), the lamp shade 1 rotates rightward under the action of the lamp shade 2, the controller U1 converts the magnitude of the rotation angle of the front wheel of an automobile into PWM duty ratio, the conducting time of the field effect tube MOS2 is controlled by the 2 nd pin outputting PWM control signals, the current magnitude in the spiral coil L and the strength generated by the spiral coil L are indirectly controlled, the magnetic field force is fixed on the lamp shade 2, the side 4 is fixed on the lamp shade 2, the magnetic force is driven by the elastic force generated by the spiral coil, and the elastic force is balanced with the magnetic force of the magnetic force 2, and the elastic force is driven by the elastic force of the lamp shade 1, and the elastic force is driven by the magnetic force and the magnetic force is driven to rotate.

Claims (8)

1. A magnetomotive vehicular lamp adaptive device, comprising: the bulb comprises a bulb (1), a lampshade (2), an elastic piece (3), a permanent magnet (4), a magnetic field generator (5), a connecting seat (6), a support (7), a front wheel steering angle sensor, a controller U1 and a power supply;
the bulb (1) is fixedly arranged in the lampshade (2), the support (7) is cylindrical, the rear end of the support is closed, and the front end of the support is open; the upper side and the lower side of the inner side wall of the front end of the support (7) are respectively provided with a connecting seat (6), the tail end of the connecting seat (6) extends inwards along the radial direction of the support (7), and a rotating shaft (8) is arranged on the tail end; the upper side and the lower side of the rear part of the outer side wall of the lampshade (2) are arranged on the support (7) through two rotating shafts (8), and the lampshade (2) can swing in the left-right direction of the support (7) based on the rotating shafts (8); the middle parts of the left side and the right side of the inner side wall of the support (7) are respectively provided with an elastic piece (3), the tail ends of the elastic pieces (3) extend towards the lampshade (2) along the radial direction and are fixedly connected with the outer side wall of the lampshade (2), and in a natural state, the two elastic pieces (3) are in a stretching state to pull the lampshade (2) so that the axial direction of the lampshade (2) is overlapped with the axial direction of the support (7); the center of the top surface of the lampshade (2) is provided with a permanent magnet (4), and the magnetic force line direction of the permanent magnet (4) is the front-back direction of the support (7); the magnetic field generator (5) is arranged on the middle part of the inner bottom surface of the support (7) along the left and right sides of the support (7), and when the magnetic field generator (5) generates magnetic force, the magnetic force line direction is the left and right direction of the support (7) and can be switched from left to right or from right to left;
the front wheel steering angle sensor and the magnetic field generator (5) are electrically connected with the controller U1, and the front wheel steering angle sensor is used for detecting a steering angle signal of a front wheel of the automobile and sending the steering signal to the controller U1; the controller U1 presets a corresponding data table among the rotation angle of the front wheel of the automobile, the rotation angle of the bulb and the control signals output by the controller U1, and the corresponding principle of the corresponding data table is as follows: setting the maximum value theta of the rotation angle of the front wheel of the automobile m Maximum value omega of bulb rotation angle m For a group of corresponding automobile front wheel rotation angles theta and bulb rotation angles omega, a formula is establishedThe corresponding bulb rotation angle omega is calculated according to the rotation angle theta of the front wheels of the automobile, the corresponding set of rotation angles of the front wheels of the automobile and the directions of the bulb rotation angles are the same, and the bulb rotation angles and the directions are controlled by control signals output by the controller U1: the control signal output by the controller U1 is transmitted to the magnetic field generator (5) to control the magnetic field direction and the magnetic force of the magnetic field generator (5), so that the permanent magnet (4) and the lampshade (2) are driven to correspondingly deflect in the left-right direction through the interaction of the magnetic field and the permanent magnet (4);
the controller U1 sends corresponding control signals to the magnetic field generator (5) according to parameters in a data table corresponding to the received steering signals, and the magnetic field generator (5) is used for generating magnetic force with corresponding magnetic field direction and corresponding strength after receiving the control signals, and attracting the permanent magnet (4) to drive the control lampshade (2) to rotate left and right to a corresponding angle; the magnetic field generator (5) and the controller U1 are electrically connected with a power supply and are powered by the power supply;
the magnetic field generator comprises an iron core T, a spiral coil L, a field effect transistor MOS1, a field effect transistor MOS2, a diode D1, a diode D2, an amplifier A1, a resistor R2 and a resistor R3;
the spiral coil L is wound on the iron core T to form an electromagnet; the 1 st pin of the controller U1 is connected with the grid electrode of the field effect transistor MOS1, the source electrode of the field effect transistor MOS1 is connected with the anode of the diode D1 and the ground wire, and the drain electrode of the field effect transistor MOS1 is respectively connected with the cathode of the diode D1, the cathode of the diode D2 and the drain electrode of the field effect transistor MOS 2;
the grid electrode of the field effect transistor MOS2 is connected with the 2 nd pin of the controller U1, the source electrode of the field effect transistor MOS2 is connected with the anode of the diode D2 and one end of the spiral coil L, the other end of the spiral coil L is connected with one end of the resistor R3, and the other end of the resistor R3 is connected with the output end of the amplifier A1; the inverting terminal of the amplifier A1 is connected with the 4 th pin of the controller U1;
one end of the resistor R1 is connected with a +5V power supply, the other end of the resistor R1 is connected with the positive phase end of the amplifier A1 and one end of the resistor R2, and the other end of the resistor R2 is connected with a ground wire;
the resistance value of the resistor R1 is equal to that of the resistor R2, and the positive electrode of the amplifier A1 is connected with a +12V power supply and the negative electrode is connected with a-12V power supply;
the 3 rd pin of the controller U1 is connected with a data output end SIN of the front wheel steering angle sensor;
the corresponding data table among the automobile front wheel rotation angle, the bulb rotation angle and the control signal output by the controller U1 is shown in the table 1:
wherein the left turning angle is positive and the right turning angle is negative; θ m Is the maximum value omega of the rotation angle of the front wheel of the automobile m Is the maximum value of the rotation angle of the bulb, theta 1 The rotation angle of the left turn of the front wheel of the automobile is smaller than 0 DEG theta 1 ＜θ m ；θ 2 The rotation angle of the right turn of the front wheel of the automobile is 0 degrees larger than theta 2 ＞-θ m Delta is omega for controlling left turn of bulb m PWM duty cycle of the 1 st foot of the controller U1, and delta is also omega for controlling the right turn of the bulb m The PWM duty cycle of pin 2 of the controller U1.
2. The magnetomotive vehicular lamp adaptive apparatus according to claim 1, wherein:
the rotation angle of the bulb (1) is within a range of +/-20 degrees, and the maximum rotation angle of the front wheel is within a range of +/-54 degrees.
3. The magnetomotive vehicular lamp adaptive apparatus according to claim 1, wherein:
the lampshade (2) is a truncated cone arranged along the front-back direction of the support (7), the top surface of the truncated cone is closed, and the bottom surface of the truncated cone is open and faces to the front.
4. The magnetomotive vehicular lamp adaptive apparatus according to claim 1, wherein:
the model of the front wheel steering angle sensor is WYT-AT-1 contactless angle sensor.
5. The magnetomotive vehicular lamp adaptive apparatus according to claim 1, wherein:
the model of the controller U1 is AT89C51, and the model of the amplifier A1 is LM324.
6. The magnetomotive vehicular lamp adaptive apparatus according to claim 1, wherein:
the model of the field effect transistor MOS1 and the field effect transistor MOS2 is XP151A.
7. A control method of a vehicle lamp using the magnetomotive vehicle lamp adaptive device according to claim 1, characterized by comprising the steps of:
A. in the running process of the automobile, a front wheel steering angle sensor detects a steering angle signal of an automobile front wheel;
B. the controller U1 is preset with a corresponding data table among the front wheel rotation angle of the automobile, the bulb rotation angle and the control signals output by the controller U1, and the principle of the corresponding data table is as follows: setting the maximum value of the rotation angle of the front wheel of the automobile to be 54 degrees, setting the maximum value of the rotation angle of the bulb to be 20 degrees, and setting a corresponding group of rotation angle theta of the front wheel of the automobile and rotation angle omega of the bulb to beThe corresponding group of automobile front wheel rotation angles and the bulb rotation angles are the same in direction, and the direction of the bulb rotation angles is controlled by a control signal output by the controller U1; namely, when the left rotation angle of the front wheel of the automobile is theta 1 When the bulb turns left, the turning angle is 20 degrees theta 1 54 °/; when the turning angle of the right turn of the front wheel of the automobile is theta 2 When the bulb turns right, the turning angle of the bulb is 20 degrees theta 2 54 °/; wherein: 0 DEG < theta 1 ＜54°，0°＞θ 2 ＞-54°；
The controller U1 is also preset with a corresponding relation between the bulb rotation angle and the control signal, and the principle of the corresponding relation is as follows: for a group of corresponding bulb rotating angles and control signals, the control signals can control the current passing through the spiral coil L so as to control the magnetic field generator to generate magnetic force to drive the bulb to rotate to the corresponding bulb rotating angle;
C. the controller U1 determines the rotation angle of the bulb corresponding to the rotation angle signal according to the rotation angle signal of the automobile front wheel, so as to determine a corresponding control signal, and sends the control signal to enable the magnetic field generator to generate magnetic force, thereby attracting the permanent magnet to move and driving the lampshade to rotate, and realizing the self-adaptive control of the lampshade.
8. The control method of a vehicle lamp according to claim 7, wherein:
the corresponding relation among the rotation angle of the front wheel of the automobile, the rotation angle of the bulb and the control signal is shown in table 2:
wherein the maximum rotation angle of the bulb (1) is set to be +/-20 degrees, the maximum rotation angle of the front wheel is set to be +/-54 degrees, the left rotation angle is set to be positive, and the right rotation angle is set to be negative; the PWM duty ratio of the 1 st pin of the controller U1 in the table is the duty ratio of a PWM control signal output by the 1 st pin of the controller U1 and is used for controlling the on-off of the MOS 1; the PWM duty ratio of the 2 nd pin of the controller U1 in the table is the duty ratio of the PWM control signal output by the 2 nd pin of the controller U1, and is used for controlling the on-off of the MOS 2.
CN201911002803.XA 2019-10-22 2019-10-22 Magnetomotive car lamp self-adapting device and control method thereof Active CN110723063B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911002803.XA CN110723063B (en) 2019-10-22 2019-10-22 Magnetomotive car lamp self-adapting device and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911002803.XA CN110723063B (en) 2019-10-22 2019-10-22 Magnetomotive car lamp self-adapting device and control method thereof

Publications (2)

Publication Number Publication Date
CN110723063A CN110723063A (en) 2020-01-24
CN110723063B true CN110723063B (en) 2023-08-11

Family

ID=69220585

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911002803.XA Active CN110723063B (en) 2019-10-22 2019-10-22 Magnetomotive car lamp self-adapting device and control method thereof

Country Status (1)

Country Link
CN (1) CN110723063B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024120987A1 (en) * 2022-12-08 2024-06-13 HELLA GmbH & Co. KGaA A vehicle headlamp assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08132955A (en) * 1994-11-09 1996-05-28 Ichikoh Ind Ltd Headlamp irradiating direction automatic control mechanism for automobile
CN2367504Y (en) * 1999-03-30 2000-03-08 王达水 Steering-type headlight of automobile
CN1843806A (en) * 2006-04-27 2006-10-11 杨慧 A safety control device for automobile
CN101249814A (en) * 2008-03-26 2008-08-27 张承青 Automobile headlamp position follower control method and multi-stage stepping position follower headlamp system
CN102275541A (en) * 2011-05-31 2011-12-14 江苏文光车辆附件有限公司 Electromagnetic induction follow-up steering mechanism for automobile
CN104691403A (en) * 2015-01-09 2015-06-10 重庆蓝岸通讯技术有限公司 Curve self-adaption control system for automotive headlamps and control method of curve self-adaption control system
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08132955A (en) * 1994-11-09 1996-05-28 Ichikoh Ind Ltd Headlamp irradiating direction automatic control mechanism for automobile
CN2367504Y (en) * 1999-03-30 2000-03-08 王达水 Steering-type headlight of automobile
CN1843806A (en) * 2006-04-27 2006-10-11 杨慧 A safety control device for automobile
CN101249814A (en) * 2008-03-26 2008-08-27 张承青 Automobile headlamp position follower control method and multi-stage stepping position follower headlamp system
CN102275541A (en) * 2011-05-31 2011-12-14 江苏文光车辆附件有限公司 Electromagnetic induction follow-up steering mechanism for automobile
CN104691403A (en) * 2015-01-09 2015-06-10 重庆蓝岸通讯技术有限公司 Curve self-adaption control system for automotive headlamps and control method of curve self-adaption control system
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

Also Published As

Publication number Publication date
CN110723063A (en) 2020-01-24

Similar Documents

Publication Publication Date Title
US8104557B2 (en) Linear drive travel system and automobile
US6634773B2 (en) Vehicle lighting apparatus
JP4326553B2 (en) Bicycle generator
CN110723063B (en) Magnetomotive car lamp self-adapting device and control method thereof
CN105882536B (en) Rearview mirror steering assistance illuminator
CN105711482A (en) Automatic horizontal dimming system for automotive headlamps and dimming method
CN211032350U (en) Magnetic driving type vehicle lamp control device
CN202806533U (en) Automobile automatic accompanying veer headlamp device
CN212386400U (en) High beam and low beam adjusting device and vehicle
CN204623290U (en) A kind of LED lamp for vehicles distance-light becomes the device of light
KR20170116786A (en) The tire wheel which lighting LED lamp by self-generate electric
CN208484606U (en) A kind of follow-up steering dipped headlight
CN108045300B (en) Lighting angle adjusting device of automobile headlamp and control method thereof
JP2607074B2 (en) Lamp device for bicycle
CN202879340U (en) Automobile front lighting combination headlight capable of indicating direction of turning by laser
CN205292267U (en) Directly drive electric automobile
CN110126910A (en) A kind of steering system and the electric vehicle with this steering system
KR200351483Y1 (en) Head lamp turning device of vehicles
KR101063662B1 (en) Leveling control device for vehicle headlamps
CN101094546A (en) Hand held automatic light sensed large lamp
JPH0717322A (en) Illuminating angle positioning device of headlamp for vehicle
JPH0577774A (en) Automatic lighting and illuminating device for bicycle
CN1235854A (en) Direction control device for remote control car
CN209290270U (en) A kind of efficient autonomous driving vehicle intelligent automotive light
CN206155285U (en) Headlight light control device changing along with automobile steering

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant