CN118306302A - High beam and low beam integrated lamp control system - Google Patents
High beam and low beam integrated lamp control system Download PDFInfo
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- CN118306302A CN118306302A CN202410563005.9A CN202410563005A CN118306302A CN 118306302 A CN118306302 A CN 118306302A CN 202410563005 A CN202410563005 A CN 202410563005A CN 118306302 A CN118306302 A CN 118306302A
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- 238000005286 illumination Methods 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- 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
- B60Q1/14—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 having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
- B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
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- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention relates to the technical field of car lamps, in particular to a high beam and low beam integrated lamp control system which is applied to a vehicle and comprises a main control module, a speed sensing module, a radar module, a positioning module and a brightness sensing module, wherein the speed sensing module, the radar module, the positioning module and the brightness sensing module are all connected with the main control module in a signal mode, and the control system further comprises the following steps: A. the method comprises the steps that the position of a vehicle is obtained through a positioning module, and the lighting mode of a lamp of the vehicle is controlled according to the position of the vehicle; B. the method comprises the steps of obtaining ambient brightness around a vehicle through a brightness sensing module, and adjusting the illumination brightness L of a vehicle lamp of the vehicle according to the ambient brightness; C. acquiring the running speed of the vehicle through a speed sensing module, and acquiring the front road condition of the vehicle through a radar module; D. and adjusting the irradiation angle of the vehicle lamp according to the running speed and the front road condition. According to a plurality of factors such as vehicle speed, vehicle position, surrounding brightness, road condition and the like, the vehicle lamp is controlled to emit light in a proper illumination mode, illumination brightness and illumination angle.
Description
Technical Field
The invention relates to the technical field of car lamps, in particular to a high beam and low beam integrated lamp control system.
Background
Vehicle lamps generally have two modes: the low beam mode and the high beam mode are mainly used in a high-luminance area, while the high beam mode is used in a low-luminance area with a small number of vehicles. For existing vehicle lights, there are two structures: one is provided with a low beam light source and a high beam light source at the same time, and the other is switched by one light source to realize two modes of low beam and high beam.
However, either mode has the following disadvantages: the mode is comparatively single, and the car light can only have two kinds of fixed angles of emission and luminance promptly, can't adjust suitable angles of emission and luminance according to the practical application occasion, leads to some vehicles to adopt the far-reaching headlamp in occasions such as urban area, often can cause very bad influence to preceding car or to the car, serious even can cause the traffic accident.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a high beam and low beam integrated lamp control system which can adjust the irradiation angle of a lamp according to actual needs.
In order to solve the technical problems, the invention adopts the following technical scheme:
The invention provides a high beam and low beam integrated lamp control system which is applied to a vehicle and comprises a main control module, a speed sensing module, a radar module, a positioning module and a brightness sensing module which are all connected with the main control module through signals,
The control system further comprises the steps of:
A. The method comprises the steps that the position of a vehicle is obtained through a positioning module, and the lighting mode of a lamp of the vehicle is controlled according to the position of the vehicle;
B. the method comprises the steps of obtaining ambient brightness around a vehicle through a brightness sensing module, and adjusting the illumination brightness L of a vehicle lamp of the vehicle according to the ambient brightness;
C. Acquiring the running speed of the vehicle through a speed sensing module, and acquiring the front road condition of the vehicle through a radar module;
D. and adjusting the irradiation angle of the vehicle lamp according to the running speed and the front road condition.
Further, the positioning module is a Beidou device, and the step A specifically comprises:
The method comprises the steps of obtaining specific geographic information of a vehicle through a positioning module;
judging the environment of the vehicle according to the running path of the vehicle, wherein the environment comprises urban areas and expressways;
when the vehicle is on a slow road, controlling the lighting mode of the vehicle lamp to lock the low beam mode;
When the vehicle is on the expressway, the lighting mode of the vehicle lamp is adjusted according to the road condition of the expressway.
Further, the adjusting the lighting mode of the vehicle lamp specifically includes:
judging whether the current expressway is in a first state or not, wherein the first state comprises the following steps:
(1) The local real time is 0 to 6 points;
(2) The number of motor vehicles per hundred meters on the current expressway is less than 1;
Judging whether the current expressway is in a second state or not, wherein the second state comprises the following steps:
(3) The current expressway has no street lamp or the street lamp is not started yet;
(4) The local weather is bad weather;
and (3) when (1) or (2) is met and (3) or (4) is simultaneously met, controlling the car lamp to switch to the intelligent dimming mode and executing the steps C and D, otherwise, controlling the car lamp to switch to the low beam mode.
Further, a car lamp is provided, which comprises a lamp body, lenses, a light-emitting module and an angle modulation module, wherein the lenses, the light-emitting module and the angle modulation module are all arranged on the lamp body, the light-emitting module is used for emitting light to the lamp body, and the angle modulation module is used for adjusting the angle of the light emitted by the light-emitting module;
The step D specifically comprises the following steps:
D1. The main control module acquires the actual running speed v of the vehicle, if the actual running speed v is less than 60km/h, the step D2 is executed, and if the actual running speed v is more than or equal to 60km/h and the actual running speed v is kept exceeding the time t, the step D3 is executed;
D2. controlling the irradiation angle theta of the car lamp to be kept as a reference angle theta 0; wherein the reference angle theta 0 is 50-55 degrees;
D3. calculating a car lamp irradiation angle theta according to the formula theta = theta 0 + k (v-60), then adjusting the angle of the light emitted by the light-emitting module through the action of the angle adjusting module, and simultaneously improving the illumination brightness of the light-emitting module to L';
wherein, theta 0 is less than or equal to theta and less than or equal to 90 degrees, k is a constant and k is more than or equal to 0.3 and less than or equal to 0.8,5 and t is less than or equal to 10.
Furthermore, when the actual running speed v is greater than 120km/h and the actual running speed v is longer than the time t, the main control module controls the light emitting module to flash, and meanwhile, the angle adjusting module acts to enable the car lamp irradiation angle theta=theta 0.
Further, the main control module stores a pairing table between the irradiation angle theta of the car lamp and the car distance S in advance; when the actual running speed v is more than or equal to 60km/h, the method further comprises the following steps:
D31. the main control module acquires whether a target exists in front of the vehicle, if so, the step D32 is executed, otherwise, the step D34 is executed;
D32. acquiring a relative distance S ' between the vehicle and the target, and matching a vehicle lamp irradiation angle theta ' according to the relative distance S ';
D33. When the lamp irradiation angle θ=θ', the lamp irradiation angle θ does not become large with the increase of the actual running speed v;
D34. step D3 is performed.
Further, in step D33, when the value of the relative distance S ' is changed by more than (1±n) S ', step D32 is re-performed to obtain a new lamp irradiation angle θ ';
Wherein n is a constant and n is more than or equal to 0.1 and less than or equal to 0.2.
Further, the step of increasing the illumination brightness of the light emitting module to L' specifically includes:
Calculating the value of illumination brightness L 'according to the formula L' =l;
Comparing the size of L max between the maximum brightness of the L ' and the maximum brightness of the light-emitting module, and if the L ' is smaller than L max, illuminating the car lamp with the L '; if L'. Gtoreq.L max, the light-emitting module group is illuminated by L max;
When the lighting module is lighted by the L max for more than the preset time t', the main control module sends a warning signal to inform a driver.
Furthermore, the car lamp also comprises a light condensing mechanism, and the light condensing mechanism is electrically connected with the main control module;
in step (4), severe weather includes fog days, rain days, and snow days;
When the light source is in bad weather, the main control module controls the light condensing mechanism to extend out, so that the light emitted by the lens is converged to the front side so as to improve the lighting effect.
Further, the main control module is connected with a measuring module,
The main control module obtains the visibility around the vehicle through the measuring module, and controls the light condensing mechanism to extend out and controls the light emitting module to improve the illumination brightness according to the visibility.
The invention has the beneficial effects that: according to the vehicle speed, the vehicle position, the surrounding brightness, the road condition and other factors, the vehicle lamp is controlled to emit light in a proper illumination mode, illumination brightness and illumination angle, so that the vehicle lamp has reliable illumination effect and no excessive driving hidden trouble is caused to surrounding vehicles.
Drawings
Fig. 1 is a functional block diagram of the present invention.
Fig. 2 is a schematic structural view of a vehicle lamp to which the present invention is applied.
Reference numerals: 1-lamp body, 2-lens, 3-light-emitting module, 4-angle modulation module, 5-light-gathering mechanism, 31-light source, 32-side refractor, 33-top refractor, 41-angle modulation motor, 42-rotating shaft, 43-refractor, 51-linear driving module and 52-light-gathering sleeve.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention. The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the high beam and low beam integrated lamp control system provided by the invention is applied to a vehicle and comprises a main control module, a speed sensing module, a radar module, a positioning module and a brightness sensing module which are all connected with the main control module through signals,
The control system further comprises the steps of:
A. The method comprises the steps that the position of a vehicle is obtained through a positioning module, and the lighting mode of a lamp of the vehicle is controlled according to the position of the vehicle;
B. the method comprises the steps of obtaining ambient brightness around a vehicle through a brightness sensing module, and adjusting the illumination brightness L of a vehicle lamp of the vehicle according to the ambient brightness;
C. Acquiring the running speed of the vehicle through a speed sensing module, and acquiring the front road condition of the vehicle through a radar module;
D. and adjusting the irradiation angle of the vehicle lamp according to the running speed and the front road condition.
Namely, the invention is applied to the vehicle and mainly realizes the connection with the main control and the lamp of the vehicle. When the vehicle is in a running state, the positioning module acquires the position of the vehicle so as to judge which mode the vehicle lamp works in; the illumination brightness of the car lamp is determined by the brightness sensed by the brightness sensing module, and then the illumination angle of the car lamp is adjusted according to the running speed of the car and the road condition of the road, so that the illumination of the car lamp meets the current situation and the requirements of drivers, the flexibility is improved, and the interference to the front car or the sight of the car caused by the too high brightness of the car lamp can be avoided.
In this embodiment, the positioning module is a Beidou device, and step A specifically includes:
The method comprises the steps of obtaining specific geographic information of a vehicle through a positioning module;
judging the environment of the vehicle according to the running path of the vehicle, wherein the environment comprises urban areas and expressways;
when the vehicle is on a slow road, controlling the lighting mode of the vehicle lamp to lock the low beam mode;
When the vehicle is on the expressway, the lighting mode of the vehicle lamp is adjusted according to the road condition of the expressway.
The invention divides the position of the vehicle into a slow road and a fast road, wherein the slow road is mainly a road which needs the vehicle to run at a lower speed, such as a city area road, a suburban uneven road and the like; and expressways comprise expressways, urban expressways and other roads with flat pavements and no traffic lights. In a slow road, the vehicle can only illuminate in a low beam mode, i.e. the illumination angle of the lamp is limited to 50-55 °; in a highway, the speed is adjusted according to the current state of the vehicle
In this embodiment, the adjusting the lighting mode of the vehicle lamp specifically includes:
judging whether the current expressway is in a first state or not, wherein the first state comprises the following steps:
(1) The local real time is 0 to 6 points;
(2) The number of motor vehicles per hundred meters on the current expressway is less than 1;
Judging whether the current expressway is in a second state or not, wherein the second state comprises the following steps:
(3) The current expressway has no street lamp or the street lamp is not started yet;
(4) The local weather is bad weather;
and (3) when (1) or (2) is met and (3) or (4) is simultaneously met, controlling the car lamp to switch to the intelligent dimming mode and executing the steps C and D, otherwise, controlling the car lamp to switch to the low beam mode.
In actual operation, the expressway has various situations, such as expressway vehicle congestion, bad weather, expressway street-free lamps and the like. Therefore, the invention carries out collection analysis on the condition that the irradiation angle of the car lamp needs to be adjusted on the expressway, takes the vehicle density and time of the current expressway as a reference factor, takes the low visibility caused by illumination of the no-road lamp or bad weather as another reference factor, and can carry out intelligent dimming when two factors are met, thereby changing the brightness and irradiation angle of the car lamp; if one of the factors is not satisfied, the lamp can be irradiated only in the low beam mode.
To facilitate understanding, the present invention provides several scenarios to aid in explaining this feature:
Scenario one: the vehicle is few on the expressway and no street lamp is arranged on the expressway at two and a half early morning. The visibility of the expressway is low but the vehicle can be started to 120km/h under the situation, so that in order to enable a driver to have enough response time, the vehicle lamp is adjusted to be in an intelligent dimming mode, the vehicle lamp can illuminate farther and has more enough brightness, and the driver can perceive the front vehicle faster and decelerate and even brake in time, so that accidents are avoided.
Scenario two: at present, the street lamp is arranged on the expressway with few vehicles at two and a half early morning. The brightness of the expressway is very high under the situation, and the driver cannot influence the vision too much even if the car light is turned off, so that the car light can only be switched into the low beam mode under the situation, the situation is ensured that the bad influence on the implementation of the car driver caused by the high beam is avoided when the car passes, and the safety accident is avoided; meanwhile, the low beam mode can irradiate the rearview mirror of the front vehicle with softer light, so that a driver of the front vehicle can perceive the vehicle, and dangerous driving behaviors are avoided.
Scenario three: the vehicle density on expressways is improved due to bad local weather, and the vehicles run slowly at the moment, and even if the visibility of the street lamps is low. Therefore, the invention can switch the car lamp to the intelligent dimming mode, and at the moment, the car lamp can still adopt a large irradiation angle for illumination, so as to improve the visibility and enable the front car to know the rear car more easily.
In summary, the intelligent dimming mode mainly aims at the situation that high beam is required to be used under a expressway, mainly plays roles of illumination, warning and the like, and can also avoid sight interference to other vehicles.
Specifically, as shown in fig. 2, the present embodiment provides a vehicle lamp, which includes a lamp body 1, a lens 2, a light emitting module 3 and an angle adjusting module 4 all disposed on the lamp body 1, wherein the light emitting module 3 is used for emitting light to the lamp body 1, and the angle adjusting module 4 is used for adjusting the angle of the light emitted by the light emitting module 3; the lamp is used for carrying out the invention.
The light emitting module 3 comprises a light source 31, a side refracting mirror 32 and a top refracting mirror 33, wherein the light source 31 is used for emitting light, and the specific light emitting brightness of the light source 31 is controlled by the main control module; the side refractor 32 is used for refracting the light emitted from the light source 31 to the side to the top refractor 33, and the top refractor 33 is used for refracting the light to the lens 2 through the angle modulation module 4 after the angle modulation module 4 is refracted, and the light is emitted to the outside through the lens 2, so as to achieve the lighting effect.
The angle adjusting module 4 includes an angle adjusting motor 41, a transmission mechanism (not shown), a rotating shaft 42 and a refraction mirror 43, the angle adjusting motor 41 drives the rotating shaft 42 to rotate through the transmission mechanism, the refraction mirror 43 is mounted on the rotating shaft 42, so that the position and the posture of the refraction mirror 43 are changed, the angle of the light refracted to the lens 2 by the refraction mirror 43 is changed, and the effect of adjusting the irradiation angle is achieved.
The step D specifically comprises the following steps:
D1. The main control module acquires the actual running speed v of the vehicle, if the actual running speed v is less than 60km/h, the step D2 is executed, and if the actual running speed v is more than or equal to 60km/h and the actual running speed v is kept exceeding the time t, the step D3 is executed;
D2. controlling the irradiation angle theta of the car lamp to be kept as a reference angle theta 0; wherein the reference angle theta 0 is 50-55 degrees;
D3. Calculating a car light irradiation angle theta according to the formula theta = theta 0 + k (v-60), then adjusting the angle of the light emitted by the light emitting module 3 through the action of the angle adjusting module 4, and simultaneously improving the illumination brightness of the light emitting module 3 to L';
wherein, theta 0 is less than or equal to theta and less than or equal to 90 degrees, k is a constant and k is more than or equal to 0.3 and less than or equal to 0.8,5 and t is less than or equal to 10.
When the intelligent dimming mode is used, if the running speed v of the vehicle is kept below 60km/h, the vehicle speed is not high, and the driver is determined to have enough time to react to the road conditions, so that the irradiation angle of the vehicle lamp does not need to be adjusted; however, when the vehicle speed exceeds 60km/h, the vehicle is in a high-speed running state, and at the moment, the irradiation angle of the vehicle lamp is increased along with the increase of the running speed of the vehicle, so that the irradiation distance of the vehicle lamp can be adapted to the running speed of the vehicle, and the driver can obtain a visual field range matched with the driving speed.
Specifically, when the actual running speed v is greater than 120km/h and the actual running speed is kept exceeding the time t, the main control module controls the light emitting module 3 to flash, and meanwhile, the angle adjusting module 4 acts to enable the vehicle lamp irradiation angle θ=θ 0.
When the vehicle runs, if the actual running speed exceeds 120km/h due to carelessness of the driver, the vehicle is in overdrive, and when the vehicle lamp is in the intelligent dimming mode, the vehicle can flash to warn the driver, and meanwhile, the irradiation angle of the vehicle lamp is adjusted to be maximum.
After the vehicle lamp enters the flicker mode for more than 15 seconds, if the vehicle speed is still not reduced, the driver is proved to be in a state of waking up and knowing that the driver is in overdrive, and the vehicle lamp does not flicker any more and keeps the maximum vehicle lamp irradiation angle; if the vehicle speed is reduced within 15 seconds when the vehicle lamp enters the flicker mode, the vehicle lamp is proved to flicker to remind a driver of reducing the speed, and then the vehicle lamp stops flickering and adjusts the brightness and the irradiation angle according to the vehicle speed. Thereby ensuring the safety of the driver.
Specifically, the main control module stores a pairing table between the irradiation angle theta of the car lamp and the car distance S in advance; when the actual running speed v is more than or equal to 60km/h, the method further comprises the following steps:
D31. the main control module acquires whether a target exists in front of the vehicle, if so, the step D32 is executed, otherwise, the step D34 is executed;
D32. acquiring a relative distance S ' between the vehicle and the target, and matching a vehicle lamp irradiation angle theta ' according to the relative distance S ';
D33. When the lamp irradiation angle θ=θ', the lamp irradiation angle θ does not become large with the increase of the actual running speed v;
D34. step D3 is performed.
That is, when the lamp irradiation angle varies with the vehicle running speed, there is also a case where there is another vehicle (i.e., a target) in front of the vehicle, which can be acquired in advance by the radar module of the present invention. When the front part is provided with a target, the irradiation angle change of the car lamp is preferably adjusted according to the distance between the target and the car, in particular to ensure that the light emitted by the car lamp falls on the rear license plate of the target and below the rear license plate, and the car lamp of the car viewed by a driver of the target from the rearview mirror can not be too dazzled at the moment so as to achieve the effect of ensuring safe driving.
In addition, if the target is in the adjacent lane, there is the possibility that the target is to the car, and the distance change value between the target and the car that the radar module sensed is very big necessarily this moment, so the main control module can control the irradiation angle of car light to resume to the dipped beam mode, and after the radar module no longer sensed the target, resumes original intelligent light modulation mode to the effect that avoids influencing to car safety of traveling has been reached.
Specifically, in step D33, when the value of the relative distance S ' is changed by more than (1±n) S ', step D32 is re-performed to obtain a new lamp irradiation angle θ ';
Wherein n is a constant and n is more than or equal to 0.1 and less than or equal to 0.2.
For example, when the relative distance S 'is 100m, the lamp is illuminated by the angle θ' 1, and when the relative distance S 'is changed to 110m or 90m, the main control module calculates and acquires a new lamp illumination angle θ' 2 again, so as to avoid the influence of frequent lamp illumination angle change on the driving effect.
The invention adjusts the irradiation angle of the car lamp by the relative distance with higher priority than the irradiation angle of the car lamp by the running speed of the car.
Since the illumination brightness of the light emitting module 3 and the lamp illumination angle are related to each other in the smart dimming mode, the illumination brightness of the light emitting module 3 is related to the surrounding environment brightness. There is thus a situation: if the surrounding brightness is low and the lamp irradiation angle is large, the lamp may be lighted at the maximum brightness for a long time, and in this case, the service life of the light emitting module 3 may be reduced, and damage may be easily caused by overload.
In order to solve this problem, in the present embodiment, the step of increasing the illumination brightness of the light emitting module 3 to L' specifically includes:
Calculating the value of illumination brightness L 'according to the formula L' =l;
Comparing the size of L max between the maximum brightness of the L ' and the maximum brightness of the light-emitting module 3, and if L ' is smaller than L max, illuminating the car lamp with L '; if L'. Gtoreq.L max, the light-emitting module 3 illuminates with L max;
When the lighting time of the lighting module 3 by the L max exceeds the preset time t', the main control module sends an alarm signal to inform a driver.
The t' can be set according to the specific characteristics and model of the light emitting module 3, namely, when the light emitting module 3 keeps the maximum brightness for long-time illumination, the vehicle is proved to have higher form speed under low brightness or low visibility, and the potential safety hazard is higher at the moment, so that the main control module can warn the driver, for example, send a text signal to the vehicle-mounted central control for display and the like, thereby enabling the driver to reduce the vehicle speed to ensure the safety.
In this embodiment, the vehicle lamp further includes a light-condensing mechanism 5, where the light-condensing mechanism 5 is electrically connected with the main control module;
in step (4), severe weather includes fog days, rain days, and snow days;
when the device is in bad weather, the main control module controls the light condensing mechanism 5 to extend out, so that the light emitted by the lens 2 is condensed to the front direction to improve the lighting effect.
When in bad weather, the visibility of driver is very low, and the main control module control spotlight mechanism 5 stretches out this moment, and laser mechanism wraps lens 2 promptly, lets the light that jets out through lens 2 only can go forward to jet out, has promoted the penetrability of light, lets the driver more easily find preceding car, lets the driver of preceding car more easily see the host vehicle.
Specifically, the main control module is connected with a measuring module,
The main control module obtains the visibility around the vehicle through the measuring module, and controls the light condensing mechanism 5 to extend out and controls the light emitting module 3 to improve the illumination brightness according to the visibility.
The measurement module is preferably a common visibility measurement device such as an atmospheric transmission device and a laser measurement device, the visibility is low in severe weather, and the main control module is adapted to adjust the illumination brightness of the module according to the visibility measured by the measurement module, so that the illumination effect is ensured.
And preferably, in the occasion of low visibility, if in the expressway, because the intelligent dimming mode is started, the irradiation angle of the car lamp can be improved along with the reduction of the visibility, so as to ensure the irradiation effect.
Specifically, the number of the condensing mechanisms 5 is two, the condensing mechanisms 5 comprise a linear driving module 51 and a condensing sleeve 52, the condensing sleeve 52 is provided with an arc condensing surface, and the linear driving module 51 drives the condensing sleeve 52 so that the condensing sleeve 52 is close to or far from the lens 2, and the condensing or condensing releasing effect is achieved.
The present invention is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a high beam and low beam integrated lamp control system, is applied to the vehicle, its characterized in that: comprises a main control module, a speed sensing module, a radar module, a positioning module and a brightness sensing module which are all connected with the main control module through signals,
The control system further comprises the steps of:
A. The method comprises the steps that the position of a vehicle is obtained through a positioning module, and the lighting mode of a lamp of the vehicle is controlled according to the position of the vehicle;
B. the method comprises the steps of obtaining ambient brightness around a vehicle through a brightness sensing module, and adjusting the illumination brightness L of a vehicle lamp of the vehicle according to the ambient brightness;
C. Acquiring the running speed of the vehicle through a speed sensing module, and acquiring the front road condition of the vehicle through a radar module;
D. and adjusting the irradiation angle of the vehicle lamp according to the running speed and the front road condition.
2. The high beam and low beam integrated lamp control system according to claim 1, wherein: the positioning module is a Beidou device, and the step A specifically comprises:
The method comprises the steps of obtaining specific geographic information of a vehicle through a positioning module;
judging the environment of the vehicle according to the running path of the vehicle, wherein the environment comprises urban areas and expressways;
when the vehicle is on a slow road, controlling the lighting mode of the vehicle lamp to lock the low beam mode;
When the vehicle is on the expressway, the lighting mode of the vehicle lamp is adjusted according to the road condition of the expressway.
3. The high beam and low beam integrated lamp control system according to claim 2, wherein: the adjusting car light illumination mode specifically comprises the following steps:
judging whether the current expressway is in a first state or not, wherein the first state comprises the following steps:
(1) The local real time is 0 to 6 points;
(2) The number of motor vehicles per hundred meters on the current expressway is less than 1;
Judging whether the current expressway is in a second state or not, wherein the second state comprises the following steps:
(3) The current expressway has no street lamp or the street lamp is not started yet;
(4) The local weather is bad weather;
and (3) when (1) or (2) is met and (3) or (4) is simultaneously met, controlling the car lamp to switch to the intelligent dimming mode and executing the steps C and D, otherwise, controlling the car lamp to switch to the low beam mode.
4. A high beam and low beam integrated lamp control system according to claim 3, wherein: providing a car lamp, which comprises a lamp body, lenses, a light-emitting module and an angle modulation module, wherein the lenses, the light-emitting module and the angle modulation module are all arranged on the lamp body, the light-emitting module is used for emitting light to the lamp body, and the angle modulation module is used for adjusting the angle of the light emitted by the light-emitting module;
The step D specifically comprises the following steps:
D1. The main control module acquires the actual running speed v of the vehicle, if the actual running speed v is less than 60km/h, the step D2 is executed, and if the actual running speed v is more than or equal to 60km/h and the actual running speed v is kept exceeding the time t, the step D3 is executed;
D2. controlling the irradiation angle theta of the car lamp to be kept as a reference angle theta 0; wherein the reference angle theta 0 is 50-55 degrees;
D3. calculating a car lamp irradiation angle theta according to the formula theta = theta 0 + k (v-60), then adjusting the angle of the light emitted by the light-emitting module through the action of the angle adjusting module, and simultaneously improving the illumination brightness of the light-emitting module to L';
wherein, theta 0 is less than or equal to theta and less than or equal to 90 degrees, k is a constant and k is more than or equal to 0.3 and less than or equal to 0.8,5 and t is less than or equal to 10.
5. The high beam and low beam integrated lamp control system according to claim 4, wherein: when the actual running speed v is more than 120km/h and the actual running speed is kept exceeding the time t, the main control module controls the light emitting module to flash, and meanwhile, the angle adjusting module acts to enable the car lamp irradiation angle theta=theta 0.
6. The high beam and low beam integrated lamp control system according to claim 4, wherein: the main control module is pre-stored with a pairing table between the irradiation angle theta of the car lamp and the car distance S; when the actual running speed v is more than or equal to 60km/h, the method further comprises the following steps:
D31. the main control module acquires whether a target exists in front of the vehicle, if so, the step D32 is executed, otherwise, the step D34 is executed;
D32. acquiring a relative distance S ' between the vehicle and the target, and matching a vehicle lamp irradiation angle theta ' according to the relative distance S ';
D33. When the lamp irradiation angle θ=θ', the lamp irradiation angle θ does not become large with the increase of the actual running speed v;
D34. step D3 is performed.
7. The high beam and low beam integrated lamp control system according to claim 6, wherein: in step D33, when the value of the relative distance S ' is changed by more than (1±n) S ', step D32 is re-performed to obtain a new lamp irradiation angle θ ';
Wherein n is a constant and n is more than or equal to 0.1 and less than or equal to 0.2.
8. The high beam and low beam integrated lamp control system according to claim 6, wherein: the step of improving the illumination brightness of the light emitting module to L' specifically comprises the following steps:
Calculating the value of illumination brightness L 'according to the formula L' =l;
Comparing the size of L max between the maximum brightness of the L ' and the maximum brightness of the light-emitting module, and if the L ' is smaller than L max, illuminating the car lamp with the L '; if L'. Gtoreq.L max, the light-emitting module group is illuminated by L max;
When the lighting module is lighted by the L max for more than the preset time t', the main control module sends a warning signal to inform a driver.
9. The high beam and low beam integrated lamp control system according to claim 4, wherein: the car light also comprises a light condensing mechanism, and the light condensing mechanism is electrically connected with the main control module;
in step (4), severe weather includes fog days, rain days, and snow days;
When the light source is in bad weather, the main control module controls the light condensing mechanism to extend out, so that the light emitted by the lens is converged to the front side so as to improve the lighting effect.
10. The high beam and low beam integrated lamp control system according to claim 9, wherein: the main control module is connected with a measuring module,
The main control module obtains the visibility around the vehicle through the measuring module, and controls the light condensing mechanism to extend out and controls the light emitting module to improve the illumination brightness according to the visibility.
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