CN107804216B - Control method of intelligent lighting system for automobile driving at night - Google Patents
Control method of intelligent lighting system for automobile driving at night Download PDFInfo
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- CN107804216B CN107804216B CN201711046414.8A CN201711046414A CN107804216B CN 107804216 B CN107804216 B CN 107804216B CN 201711046414 A CN201711046414 A CN 201711046414A CN 107804216 B CN107804216 B CN 107804216B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 6
- 238000005286 illumination Methods 0.000 claims description 15
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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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
- B60Q1/06—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention provides a control method of an intelligent lighting system for automobile driving at night, wherein the lighting system comprises an electronic control unit, a light sensor and side lighting units, the side lighting units are respectively arranged at two sides of an automobile body, and the control method comprises the following steps: s1: acquiring steering information of a steering wheel, wherein the steering information comprises a steering direction and a steering angle; s2: judging whether the steering angle exceeds a first threshold value A, if so, entering step S3, and if not, entering step S1; s3: acquiring real-time light intensity of the outside through the optical sensor, judging whether the light intensity is lower than a second threshold value B, if so, entering a step S4, otherwise, entering a step S1; s4: and turning on the side lighting unit on the side corresponding to the turning direction according to the turning direction, and lighting the side of the vehicle body within a preset range, so that objects within the preset range are presented to a driver through a rearview mirror.
Description
Technical Field
The invention relates to a motor vehicle lighting system, in particular to a control method of an intelligent lighting system for driving an automobile at night.
Background
Referring to fig. 1, in the prior art, when a car runs at night, the front headlamp is used for illuminating, and after the front headlamp is turned on, only the road surface right in front of the car can be illuminated, so that when the car runs at night and turns, especially when a crossing with dark light turns, pedestrians or bicycles and the like positioned in a certain range (a vision blind area D) on one side of the car body are difficult to be shown to a driver through a rearview mirror due to insufficient illumination on one side of the car body, and if the pedestrians or the bicycles pass through the crossing at a relatively high speed, the pedestrians or the bicycles are easy to collide with the turning car.
Disclosure of Invention
The invention provides a control method of an intelligent lighting system for automobile driving at night, and aims to solve the problem that the road condition in a preset range of a turning road surface is not clear when the automobile is driven at night.
A control method of an intelligent lighting system for driving an automobile at night comprises an electronic control unit, a light sensor and two side lighting units, wherein the two side lighting units are respectively arranged on two sides of an automobile body, and the control method comprises the following steps:
s1: acquiring steering information of a steering wheel, wherein the steering information comprises a steering direction and a steering angle;
s2: judging whether the steering angle exceeds a first threshold value A, if so, entering step S3, and if not, entering step S1;
s3: acquiring real-time light intensity of the outside through the optical sensor, judging whether the light intensity is lower than a second threshold value B, if so, entering a step S4, otherwise, entering a step S1;
s4: and turning on the side lighting unit on the side corresponding to the turning direction according to the turning direction, and lighting the side of the vehicle body within a preset range, so that objects within the preset range are presented to a driver through a rearview mirror.
As a further improvement, in step S4, the method further includes controlling the rearview mirror to rotate by a corresponding angle θ 3 in the vehicle head direction according to the magnitude of the steering angle, where θ 3 is a.
As a further improvement, the first threshold A and the second threshold B can be adjusted according to the use habits of different users.
As a further improvement, the first threshold value A ranges from 10 to 15 DEG, and the second threshold value B ranges from 13LX to 16 LX.
As a further improvement, in step S2, the step of determining whether the steering angle exceeds the first threshold a includes:
it is determined whether the steering angle per unit time T exceeds a first threshold value a, where 0.5s > T > 0.
As a further improvement, the light intensity of the side illumination unit is 8 to 15 times the second threshold value B.
As a further improvement, two side lighting units are respectively arranged in the middle of two sides of the vehicle body.
As a further improvement, the side lighting unit comprises a first baffle, a second baffle and a lighting lamp, the lighting lamp is arranged between the first baffle and the second baffle, the first baffle is close to the automobile head, and the second baffle is far away from the automobile head.
As a further improvement, a distance from the side lighting unit to the automobile rearview mirror in the horizontal direction is defined as d, a length of the automobile rearview mirror is defined as n, wherein an included angle formed by the first baffle and the extending direction of the head of the automobile is defined as θ 1, and θ 1 satisfies:
as a further improvement, the light irradiation direction of the side lighting unit is inclined towards the ground and forms an inclination angle alpha with the vertical direction of the automobile body.
Compared with the prior art, the invention has the following advantages:
the invention provides a control method of an intelligent lighting system for automobile driving at night, which comprises the steps of acquiring external real-time light intensity by arranging an optical sensor, acquiring the steering direction and the steering angle of a steering wheel by an electronic control unit, starting a side lighting unit corresponding to the steering direction according to light intensity information and the steering direction and the steering angle of the steering wheel, and lighting within a certain range from an automobile body, so that objects within the preset range are presented to a driver through a rearview mirror, the driver can conveniently see information of a turning road surface clearly, and accidents are prevented.
Drawings
FIG. 1 is a schematic view of a prior art automotive lighting system turning a vehicle;
FIG. 2 is a flow chart of a control method of the intelligent lighting system for driving a vehicle at night according to the invention;
FIG. 3 is a connection diagram of units of the control method of the intelligent lighting system for driving the automobile at night;
FIG. 4 is a schematic view of turning of a car according to a control method of an intelligent lighting system for driving the car at night
FIG. 5 is a schematic structural diagram of an automobile of a control method of an intelligent lighting system for automobile driving at night;
FIG. 6 is a schematic structural diagram of an illuminating lamp of a control method of an intelligent illumination system for automobile driving at night;
fig. 7 is a partial structural diagram of an automobile in which a method for controlling an intelligent lighting system for driving the automobile at night.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 2 to 4, a control method of an intelligent lighting system for driving a car at night, the lighting system including an electronic control unit, a light sensor and two side lighting units 1, the two side lighting units 1 being respectively disposed at two sides of the car body, the control method including the steps of:
s1: acquiring steering information of a steering wheel, wherein the steering information comprises a steering direction and a steering angle;
s2: judging whether the steering angle exceeds a first threshold value A, if so, entering step S3, and if not, entering step S1;
s3: acquiring real-time light intensity of the outside through the optical sensor, judging whether the light intensity is lower than a second threshold value B, if so, entering a step S4, otherwise, entering a step S1;
s4: and turning on the side lighting unit 1 on the side corresponding to the turning direction according to the turning direction, lighting the side of the vehicle body within a preset range, and displaying the object within the preset range to a driver through a rearview mirror.
Referring to fig. 3, the light sensor is arranged to obtain the real-time light intensity of the outside, and the real-time light intensity information of the outside is sent to the electronic control unit, the electronic control unit obtains the steering direction and the steering angle of the steering wheel, and controls to turn on the side lighting unit corresponding to the steering direction according to the light intensity information and the steering direction and the steering angle of the steering wheel, so as to illuminate the side lighting unit within a certain range from the vehicle body, and thus, objects within the preset range are presented to the driver through the rearview mirror, the driver can see the information of the turning road clearly, and accidents are prevented.
In step S1, the electronic control unit includes a direction sensor, and the steering direction and the steering angle of the automobile are acquired by the direction sensor.
In step S2, more specifically, it is necessary to determine whether or not the steering angle in the unit time T exceeds the first threshold value a. The first threshold a may be adjusted according to the driving habits of the driver. Preferably, the first threshold value a is in the range of 10 ° to 15 °. Generally speaking, when the vehicle runs on a road section with weak light, the speed per hour is controlled to be between 15km/h and 30km/h, namely between 5.6m/s and 8.3m/s, and the time for passing through a turning road section is generally between 2 and 3 seconds. Thus, in an initial turn, a turn of typically 10-15 can be completed in 0.3 seconds. Therefore, it is preferable that the unit time T satisfies: 0.3s > T > 0.
In step S3, obtaining real-time light intensity of the outside environment through the optical sensor, obtaining the current outside light brightness, and determining whether the light intensity is lower than a second threshold B, where the second threshold B is 13LX to 16LX, and if the light intensity is higher than the second threshold, it indicates that the outside light is sufficient for the running automobile; if the light intensity is lower than the second threshold value, the external light brightness is low, the light is insufficient for the running automobile, the automobile is dim, and the headlamp of the automobile needs to be turned on to ensure that a driver can clearly see the running road surface and normally run. Preferably, the light intensity of the side illumination unit 1 is 8 to 15 times the second threshold value B, and more preferably, the light intensity of the side illumination unit 1 is 10B-12B. If the light intensity of the side lighting unit 1 is too low, it is not beneficial for the driver to clearly view the road condition information within the predetermined range, and if the light intensity of the side lighting unit 1 is too high, the brightness is too strong, which may affect the view field of the driver of the rear vehicle and cause discomfort to the eyes of the rear driver.
In step S4, the method further includes controlling the rearview mirror to rotate in the front direction by a corresponding angle θ 3 according to the magnitude of the steering angle, where θ 3 is a. When the automobile turns, the rearview mirror rotates by a corresponding angle theta 3 along the direction of the automobile head, so that a driver can clearly see pedestrians or bicycles on a turning road surface in the rearview mirror, and accidents are prevented.
Referring to fig. 5, in the present embodiment, two side illumination units 1 are preferably disposed in the middle of two sides of a vehicle body, and when a vehicle travels to a turning road surface, the side illumination unit 1 corresponding to the turning direction is turned on, so that the illumination range of the side illumination unit 1 can be maximized, and a driver can see pedestrians or motorcycles on the turning road surface clearly.
Referring to fig. 6, in other embodiments, the side lighting unit 1 may further include a first baffle 11, a second baffle 12 and an illuminating lamp 13, the illuminating lamp 13 is disposed between the first baffle 11 and the second baffle 12, the first baffle 11 is disposed near a head of the vehicle, and the second baffle 12 is disposed far away from the head of the vehicle. The irradiation range of the illuminating lamp 13 can be limited by arranging the first baffle 11 and the second baffle 12, so that the irradiation range of the illuminating lamp 13 is most appropriate, the normal running of other vehicles is prevented from being influenced by the overlarge irradiation angle, and meanwhile, the influence on the visual field of a driver is prevented from being influenced by the fact that the illuminating lamp 13 irradiates on a rearview mirror of the automobile.
Referring to fig. 5 to 6, specifically, a distance from the side lighting unit 1 to the rearview mirror in a horizontal direction is defined as d, a length of the rearview mirror is defined as n, wherein an inclined angle formed by the first baffle 11 and a vehicle head extending direction is θ 1, and θ 1 satisfies:
through limiting and setting an inclined included angle theta 1 formed by the first baffle plate 11 and the extending direction of the vehicle head, the irradiation range of the illuminating lamp 13 can be limited, and if the inclined included angle theta 1 is smaller than or equal to
The lighting lamp 13 can irradiate the rearview mirror to influence the field of vision of the driver; if the included angle θ 1 is too large, the illumination range of the illumination lamp 13 is too small, and the road condition on the turning road cannot be seen clearly and comprehensively. Preferably, the first and second liquid crystal materials are,
in the present embodiment, the first and second electrodes are,
on the other hand, by limiting the inclination angle θ 2 of the second baffle 12, the situation that when the automobile turns, the light rays irradiated out through the second baffle 12 become light rays parallel to the driving direction of the rear automobile, and further influence on the form of the rear automobile can be avoided. Preferably, the inclined included angle formed by the second baffle 12 and the extending direction of the vehicle head is θ 2, and θ 2 satisfies the following conditions: (180 ° -a) > θ 2>150 °, preferably θ 2 is 160 °. If the inclined included angle theta 2 is too large, the automobile can irradiate the rear vehicle when turning, and the view range of a driver of the rear vehicle is influenced; if the tilt angle θ 2 is too small, the illumination range of the illumination lamp 13 is too small, and the road condition on the turning road cannot be seen clearly and comprehensively.
Referring to fig. 7, in the present embodiment, further, the illumination direction of the side lighting unit 1 may be inclined toward the ground and form an inclined angle α with the vehicle body, so that the side lighting unit 1 illuminates in a predetermined range, so that the driver can clearly see the road condition in the predetermined range of the turning road surface, and avoid illuminating too far to affect the driving of other vehicles, the height of the side lighting unit 1 from the ground is defined as H, and the farthest distance of the side lighting unit 1 from the ground is defined as L, then
Preferably, H is 0.7m to 0.8m and L is 4m to 5m, in this example, H is 0.7m and L is 5m, then α is 82 °.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (1)
1. A control method of an intelligent lighting system for automobile driving at night is characterized in that: the lighting system comprises an electronic control unit, a light sensor and two side lighting units, wherein the two side lighting units are respectively arranged in the middle parts of two sides of a vehicle body, each side lighting unit comprises a first baffle, a second baffle and a lighting lamp, the lighting lamps are arranged between the first baffle and the second baffle, the first baffles are arranged close to the head of the vehicle, and the second baffles are arranged far away from the head of the vehicle; the second baffle is used for avoiding influence of overlarge irradiation angle on normal running of a rear vehicle; the first baffle is used for avoiding the illuminating lamp from irradiating the automobile rearview mirror, and the control method comprises the following steps:
s1: acquiring steering information of a steering wheel, wherein the steering information comprises a steering direction and a steering angle;
s2: determining whether the steering angle exceeds a first threshold a, if so, proceeding to step S3, and if not, proceeding to step S1, where the determining whether the steering angle exceeds the first threshold a includes: judging whether the steering angle in unit time T exceeds a first threshold value A, wherein 0.3s > T > 0;
s3: acquiring real-time light intensity of the outside through the optical sensor, judging whether the light intensity is lower than a second threshold value B, if so, entering a step S4, otherwise, entering a step S1;
s4: turning on a side lighting unit on one side corresponding to the turning direction according to the turning direction, lighting the side lighting unit within a preset range away from one side of the vehicle body, and enabling objects within the preset range to be presented to a driver through a rearview mirror; in step S4, the method further includes controlling the rearview mirror to rotate by a corresponding angle θ 3 in the vehicle head direction according to the magnitude of the steering angle, where θ 3 ═ a;
the first threshold value A and the second threshold value B can be adjusted according to the use habits of different users, the range of the first threshold value A is 10 degrees to 15 degrees, the range of the second threshold value B is 13LX to 16LX, the light intensity of the side lighting unit is 8 times to 15 times of that of the second threshold value B, the illumination direction of the side lighting unit is obliquely arranged towards the ground and forms an inclination angle α with the vertical direction of an automobile body, the distance from the side lighting unit to the automobile rearview mirror in the horizontal direction is defined as d, the length of the automobile rearview mirror is n, the included angle formed by the first baffle plate and the extending direction of the automobile head is theta 1, and the theta 1 meets the following requirements:
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711046414.8A CN107804216B (en) | 2017-10-31 | 2017-10-31 | Control method of intelligent lighting system for automobile driving at night |
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| CN107804216B true CN107804216B (en) | 2020-08-14 |
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| CN2078710U (en) * | 1991-01-10 | 1991-06-12 | 崔海明 | Auxiliary lighting device of automotive vehicle |
| KR101962727B1 (en) * | 2012-12-24 | 2019-03-27 | 현대모비스 주식회사 | Lighting System Coupled With Navigator for Vehicle |
| CN105711483A (en) * | 2016-04-20 | 2016-06-29 | 高碑店市博伟汽车配件有限公司 | Auxiliary lighting system for curves |
| CN106926772B (en) * | 2017-03-22 | 2020-05-08 | 奇瑞汽车股份有限公司 | Automobile lighting system |
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Effective date of registration: 20231211 Address after: Unit 703, No. 199-1 Fengqi Road, Software Park Phase III, Xiamen City, Fujian Province, 361000 Patentee after: XIAMEN CHENGXIN ZHICHUANG TECHNOLOGY SERVICE CO.,LTD. Address before: 350400 No. 20 station C, No. 31, Taiwan Pioneer Park, Jin Jing two road, Pingtan comprehensive experimentation area, Fuzhou, Fujian. Patentee before: PINGTAN CHENGXIN ZHICHUANG TECHNOLOGY Co.,Ltd. |
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