CN113911236A

CN113911236A - Vehicle lamp control device

Info

Publication number: CN113911236A
Application number: CN202111195889.XA
Authority: CN
Inventors: 赵炎君; 叶孝; 肖冰
Original assignee: Jiangsu Aima Vehicle Industry Technology Co Ltd
Current assignee: Jiangsu Aima Vehicle Industry Technology Co Ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-01-11

Abstract

The embodiment of the application provides a car light control device, and relates to the field of vehicle illumination. The device includes: the system comprises a vehicle lamp, a vehicle lamp control module, a gyroscope and a rotating motor; the vehicle lamp control module is electrically connected with the gyroscope and the rotating motor respectively; the gyroscope and the steering column are relatively fixedly arranged; the car lamp is arranged on the car head through a rotating motor; the gyroscope is used for gathering steering column's rotation information to with rotation information transmission to car light control module, wherein, this rotation information includes: torsion angle and rate of change of angle; the car light control module is used for generating a first control signal according to the torsion direction of the torsion angle when the angle change rate is larger than a first preset threshold value, and sending the first control signal to the rotating motor; the rotating motor is used for driving the lamp to turn in the turning direction according to the first control signal, so that the lamp is controlled to illuminate a turning area in advance when the two-wheeled vehicle and/or the three-wheeled vehicle need to turn, and the driving safety is improved.

Description

Vehicle lamp control device

Technical Field

The application relates to the field of vehicle lighting, in particular to a vehicle lamp control device.

Background

With the year-by-year increase of the quantity of motor vehicles in China, the traffic pressure of people in daily travel is higher and higher, and the two-wheel vehicle and/or the three-wheel vehicle relieve the problem to a great extent. The two-wheeled and/or three-wheeled vehicle is a general name of two-wheeled and/or three-wheeled bicycles, electric motorcycles, and electric mopeds, and has become a preferred vehicle for many people to go on a journey by virtue of the advantages of small size and high speed.

In order to provide illumination for a driver when ambient light is dark, a lamp is generally arranged on a head of the two-wheeled and/or three-wheeled vehicle, and the illumination direction of the lamp is consistent with the direction of the head of the vehicle all the time, so that the driver is provided with a view field of a road ahead.

However, when the two-wheeled vehicle and/or the three-wheeled vehicle need to turn in a curve with dark ambient light, a blind area often appears on the inner side of the curve because of no illumination, and a safety hazard is caused.

Disclosure of Invention

The invention aims to provide a vehicle lamp control device, which is used for controlling a vehicle lamp to illuminate a turning area in advance when a two-wheeled vehicle and/or a three-wheeled vehicle need to turn, so as to improve the driving safety.

In order to achieve the above object, the present application provides a vehicle lamp control device, which is applied to a two-wheeled vehicle and/or a three-wheeled vehicle, the two-wheeled vehicle and/or the three-wheeled vehicle including a steering column and a vehicle head, the device including: the system comprises a vehicle lamp, a vehicle lamp control module, a gyroscope and a rotating motor;

the vehicle lamp control module is electrically connected with the gyroscope and the rotating motor respectively; the gyroscope and the steering column are relatively fixedly arranged; the car lamp is arranged on the car head through a rotating motor;

the gyroscope is used for gathering steering column's rotation information to with rotation information transmission to car light control module, wherein, this rotation information includes: torsion angle and rate of change of angle;

the car light control module is used for generating a first control signal according to the torsion direction of the torsion angle when the angle change rate is larger than a first preset threshold value, and sending the first control signal to the rotating motor;

the rotating motor is used for driving the vehicle lamp to turn in the twisting direction according to the first control signal.

Optionally, in a specific embodiment, the apparatus further comprises: a turn signal switch; the turn light switch is electrically connected with the car light control module;

the turn light switch is used for generating a turn signal and sending the turn signal to the car light control module;

the car light control module is also used for generating a second control signal according to the steering signal and sending the second control signal to the rotating motor;

the rotating motor is also used for driving the lamp to turn in the direction indicated by the turning signal according to the second control signal.

Optionally, in a specific embodiment, the apparatus further comprises: a micro control unit; the micro control unit is electrically connected with the vehicle lamp control module;

the micro control unit is used for acquiring speed information of the two-wheel vehicle and/or the three-wheel vehicle and sending the speed information to the vehicle lamp control module;

the car light control module is further used for generating a first control signal according to the direction of the torsion angle when the speed information is larger than a second preset threshold and the angle change rate is larger than a third preset threshold, wherein the third preset threshold is smaller than the first preset threshold.

Optionally, in a specific embodiment, the apparatus further comprises: a height motor; the car light is also arranged on the car head through a height motor;

the gyroscope is also used for acquiring a pitch angle of the steering column and sending the pitch angle to the car light control module;

the car light control module is also used for generating a third control signal according to the pitch angle and sending the third control signal to the height motor;

the height motor is used for adjusting the height of the vehicle lamp according to the third control signal.

Optionally, in a specific embodiment, the apparatus further comprises: a three-axis accelerometer; the three-axis accelerometer is relatively fixedly arranged with the steering column and electrically connected with the car lamp control module;

the three-axis accelerometer is used for acquiring acceleration information of the two-wheeled vehicle and/or the three-wheeled vehicle and sending the acceleration information to the vehicle lamp control module;

the vehicle lamp control module is specifically configured to generate a third control signal according to the acceleration information and the pitch angle.

Optionally, in a specific embodiment, the apparatus further comprises: a far and near light motor and a far and near light switch; the high beam and low beam switch is connected with the car lamp control module; the far and near photoelectric motor is respectively connected with the car lamp control module and the car lamp;

the high beam and low beam switch is used for generating a high beam and low beam adjusting signal and sending the high beam and low beam adjusting signal to the vehicle lamp control module;

the car light control module is also used for generating a fourth control signal according to the far and near light adjusting signal and sending the fourth control signal to the far and near photoelectric machine;

and the far and near light motor is used for controlling the vehicle lamp to turn on a high beam or turn on a low beam according to the fourth control signal.

Optionally, in a specific embodiment, the high beam and low beam switch includes: a high beam switch and a low beam switch; the high beam switch and the dipped headlight switch are both connected with the car light control module;

the high beam and low beam adjusting signals comprise high beam adjusting signals and low beam adjusting signals, the high beam adjusting signals are generated by a high beam switch, and the low beam adjusting signals are generated by a low beam switch;

the fourth control signal comprises a high beam turning-on signal and a low beam turning-on signal, the high beam turning-on signal is generated by the vehicle lamp control module according to the high beam adjusting signal, and the low beam signal is generated by the vehicle lamp control module according to the low beam adjusting signal;

the far and near light motor is used for controlling the vehicle lamp to turn on the high beam according to the high beam signal and turning on the dipped headlight according to the dipped headlight signal.

Optionally, in a specific embodiment, the apparatus further comprises: a light sensor; the light sensor is electrically connected with the car lamp control module; the car light control module is also electrically connected with the car light;

the light sensor is used for collecting the ambient light brightness and sending the ambient light brightness to the car light control module;

the car light control module is also used for adjusting the brightness of the car light according to the ambient light brightness.

Optionally, in a specific embodiment, the vehicle lamp control module is specifically configured to adjust the brightness of the vehicle lamp to a brightness threshold corresponding to the vehicle lamp when the ambient light brightness is less than a fourth preset threshold, and turn off the vehicle lamp when the ambient light brightness is greater than a fifth preset threshold, where the fifth preset threshold is greater than or equal to the fourth preset threshold.

Optionally, in a specific embodiment, the apparatus further comprises: a meter; the instrument is fixed on the steering column, and the gyroscope is fixed on the instrument;

the instrument is used for transmitting the rotation information to the car light control module based on an RS485 communication protocol.

The embodiment of the application provides a car light controlling means, at first gather steering column's rotation information through the gyroscope, and with rotation information transmission to car light control module, then when the angle rate of change through car light control module in the rotation information is greater than first preset threshold value, the direction of torsion according to the torsion angle in the rotation information generates first control signal, and with first control signal transmission to rotating electrical machines, turn to the direction of torsion according to first control signal drive car light through rotating electrical machines at last, thereby control the car light and illuminate the turn region in advance when two wheeler and/or tricycle need turn, improve the security of driving.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic view of a two-wheeled and/or three-wheeled vehicle according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a vehicle lamp control device according to an embodiment of the present application;

FIG. 3 is a schematic connection diagram of another vehicle lamp control device according to an embodiment of the present disclosure;

fig. 4 is a schematic connection diagram of another vehicle lamp control device according to an embodiment of the present application;

fig. 5 is a schematic connection diagram of another vehicle lamp control device according to an embodiment of the present application;

fig. 6 is a schematic connection diagram of another vehicle lamp control device according to an embodiment of the present application;

fig. 7 is a schematic connection diagram of another vehicle lamp control device according to an embodiment of the present application.

Icon: two-and/or three-wheeled vehicles 100; a vehicle head 101; a vehicle lamp 102; a steering column 103; a car light control module 201; a gyroscope 202; a rotating electrical machine 203; a turn signal switch 301; a micro control unit 401; a height motor 501; a six-axis sensor 701; a far and near photoelectric motor 702; a high beam and low beam switch 703; a light sensor 704.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which the present invention product is usually put into use, it is only for convenience of describing the present application and simplifying the description, but it is not intended to 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 application.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.

Before the present application is explained in detail, an application scenario of the present application will be described.

Referring to fig. 1, in order to provide illumination for a driver when ambient light is dark, a lamp 102 is usually disposed on a head 101 of a two-wheeled and/or three-wheeled vehicle 100, and an illumination direction of the lamp 102 is always consistent with an illumination direction of the head 101, that is, an illumination direction of the lamp 102 is always changed synchronously with the head 101, so that the lamp 102 can only provide a driver with a constant view of a road ahead.

However, when the two-wheeled and/or three-wheeled vehicle 100 needs to turn around a curve with dark ambient light, since the orientation of the lamp 102 and the head 101, that is, the steering column 103, are changed synchronously, the lamp 102 cannot provide illumination to the area inside the curve before the head 101 turns, and the driver cannot observe the area inside the curve in advance before turning, so that the inner area of the curve has a blind field of view, which causes a safety hazard.

In order to solve the problem, the embodiment of the present application provides a lamp control device, which can control the lamp 102 to illuminate the turning area in advance when the two-wheeled vehicle and/or three-wheeled vehicle needs to turn, thereby improving the driving safety.

It should be noted that the lamp control device or lamp control logic of the prior art four-wheel vehicle cannot be directly applied to the two-wheel electric vehicle. Firstly, the four-wheel vehicle usually steers based on the steering wheel, so the steering angle of the vehicle needs to be calculated through the steering angle of the steering wheel, the calculation process has high requirements on precision and accuracy, and the controller or the lamp control module in the two-wheel electric vehicle cannot meet the calculation requirements. Secondly, the irradiation range of the four-wheel vehicle lamp is wider and the brightness is higher, the requirement on the adjusting speed of the lamp is not high during turning, the inner side of the curve can be illuminated only by finely adjusting the irradiation angle, and the sensitivity requirement of the four-wheel vehicle on the adjustment of the lamp is not high. And because the irradiation range of the car light is narrow, the two-wheeled electric vehicle can illuminate the inner side of the curve by adjusting the irradiation angle of the car light in time before turning.

The lamp 102 mentioned in the embodiment of the present application specifically refers to a headlight of a two-wheeled vehicle and/or a three-wheeled vehicle, for example, a headlight of the two-wheeled vehicle and/or the three-wheeled vehicle, and will not be described in detail later.

Referring to fig. 2, the vehicle lamp control device provided in the embodiment of the present application is applied to a two-wheeled vehicle and/or a three-wheeled vehicle, the two-wheeled vehicle and/or the three-wheeled vehicle includes a steering column 103 and a vehicle head, the device includes: the vehicle lamp 102, the vehicle lamp control module 201, the gyroscope 202, and the rotating electrical machine 203.

First, a connection relationship between respective components in the vehicle lamp control device provided in the embodiment of the present application will be described. The car light control module 201 is electrically connected with the gyroscope 202 and the rotating motor 203 respectively; the gyroscope 202 and the steering column 103 are relatively fixedly arranged; the lamp 102 is mounted to the vehicle head by the rotating electric machine 203.

The steering column 103 of the two-wheeled and/or three-wheeled vehicle is mainly used for transmitting the force of a user rotating a handle to the wheel so as to control the wheel and the two-wheeled and/or three-wheeled vehicle to realize steering integrally.

The gyroscope 202 can be a three-axis gyroscope, and the gyroscope 202 and the steering column 103 are relatively fixedly arranged, so that the gyroscope 202 can detect the pitch angle, the roll angle and the course angle of the two-wheeled electric vehicle in real time. If the direction of the head of the two-wheeled electric vehicle is taken as the right and the right of the direction of the head as the x axis, the direction of the head as the y axis, and the direction of the head as the z axis, a three-dimensional coordinate system is established, the pitch angle in the embodiment of the application refers to an angle rotating around the x axis, the roll angle refers to an angle rotating around the y axis, and the heading angle refers to an angle rotating around the z axis.

The rotating motor 203 is a rotating electromagnetic machine which runs by means of an electromagnetic induction principle, the lamp 102 is installed behind the vehicle head through the rotating motor 203, so that the rotating motor 203 can turn through driving the lamp 102, the lighting orientation of the lamp 102 can change relative to the orientation of the vehicle head, and therefore the electric vehicle can be conveniently turned to a corresponding angle by driving the lamp 102 through the rotating motor 203 in advance when needing to turn, so that a turning area can be illuminated in advance, and the driving safety is improved.

It should be noted that in the embodiment of the present application, the rotation axis of the rotating motor 203 may be parallel to the rotation axis of the lamp 102, so that the rotating motor 203 drives the lamp 102 to rotate by rotation.

In addition, in the embodiment of the present application, the functions of the lamp control module 201 may be integrated into a controller of a two-wheel vehicle and/or a three-wheel vehicle, or may be independent of the controller, the lamp control module 201 may be located at a vehicle head, a vehicle seat, or other locations, fig. 2 only shows a situation where the lamp control module 201 is located at the vehicle head, and the present application is not limited thereto.

Next, the functions of the respective components in the vehicle lamp control device provided in the embodiment of the present application will be described. The gyroscope 202 is configured to collect rotation information of the steering column 103 and send the rotation information to the lamp control module 201, where the rotation information includes: torsion angle and rate of change of angle; the car light control module 201 is configured to generate a first control signal according to a torsion direction of the torsion angle when the angle change rate is greater than a first preset threshold, and send the first control signal to the rotating electrical machine 203; the rotating electric machine 203 is used for driving the lamp 102 to turn in the twisting direction according to the first control signal.

Specifically, the turning information of the steering column 103 includes a torsion angle and an angle change rate, and the torsion angle may refer to the above-mentioned heading angle, that is, an angle rotated around the head of the vehicle toward the right top, specifically, a rotation angle by which the user rotates the handle of the two-wheeled electric vehicle. The angle change rate specifically refers to a change amount of the torsion angle in a unit time, for example, if 100ms is taken as a unit time, and the change amount of the torsion angle in 100ms is 30 degrees, the angle change rate is 30 degrees/100 ms, which is, of course, only exemplified here, and is not meant to limit the application.

The torsion angle may have a direction, and one rotation direction of the steering column 103 may be set to a positive direction, the other rotation direction may be set to a negative direction, the torsion angle may be positive when the steering column 103 rotates in the positive direction, and the torsion angle may be negative when the steering column 103 rotates in the negative direction. In addition, the change rate of the torsion angle may specifically be an absolute value of a sum of changes in the torsion angle per unit time. For example, if the steering column 103 is rotated first by 30 degrees in the positive direction and then by 20 degrees in the negative direction within 100ms, the sum of the change amounts of the torsion angles within 100ms becomes 10 degrees, and the angle change rate becomes 10 degrees/100 ms. Therefore, when a user drives the two-wheel vehicle and/or the three-wheel vehicle to rotate the handle bars in two rotation directions in a small range, the vehicle lamp control module 201 can make a misjudgment due to the fact that the angle change rate is large, accuracy of controlling the vehicle lamp 102 to turn is guaranteed, and driving experience of the user is improved.

After receiving the angle change rate and the torsion angle sent by the gyroscope 202, the car light control module 201 generates a first control signal according to the direction of the torsion angle when the angle change rate is greater than a first preset threshold. The first control signal is a signal instructing the rotating electrical machine 203 to drive the lamp 102 to turn in the torsional direction of the torsional angle. For example, if the rate of change of the angle is larger than a first preset threshold value and the twisting direction of the torsion angle is a positive direction, the lamp control module 201 generates a first control signal instructing the rotating electrical machine 203 to drive the lamp 102 to turn in the positive direction, in the expression that the torsion angle has a direction as described above. The first control signal may specifically be a preset number of pulse signals, and the preset number may be set according to actual needs, and is not limited herein.

It should be noted that the first preset threshold may be set according to actual needs, or may be obtained according to experimental data statistics, and this application is not specifically limited to this.

Alternatively, the first control signal may also instruct the rotating electrical machine 203 to drive the lamp 102 to turn at a specific steering angle, and the specific steering angle at which the lamp 102 turns to the twisting direction may be determined according to the magnitude of the angle change rate. For example, a functional relationship or a mapping relationship between a specific steering angle and an angle change rate may be pre-established and stored in the lamp control module 201, and after the lamp control module 201 receives the angle change rate and the torsion angle sent by the gyroscope 202, the specific steering angle may be determined according to the angle change rate and the functional relationship or the mapping relationship, and then the first control signal may be generated according to the specific steering angle and the torsion direction of the torsion angle.

Of course, this is merely an example, and the specific steering angle may be preset to be a fixed angle, which is not specifically limited in this application.

After the vehicle light control module 201 sends the first control signal to the rotating electrical machine 203, the rotating electrical machine 203 drives the vehicle light 102 to turn in the twisting direction according to the first control signal. In the expression that the torsion angle has a direction, that is, if the torsion direction is a positive direction, the rotating electrical machine 203 drives the lamp 102 to rotate in the positive direction according to the first control signal, and if the torsion direction is a negative direction, the rotating electrical machine 203 drives the lamp 102 to rotate in the negative direction according to the first control signal.

The embodiment of the application provides a car light controlling means, at first gather steering column 103's rotation information through gyroscope 202, and with rotation information transmission to car light control module 201, then when the angle rate of change in the rotation information through car light control module 201 is greater than first preset threshold value, turn round the direction according to the torsion direction of the torsion angle in the rotation information and generate first control signal, and send first control signal to rotating electrical machines 203, turn round to the torsion direction according to first control signal drive car light 102 through rotating electrical machines 203 at last, thereby control car light 102 and illuminate the turn zone in advance when two wheeler and/or tricycle need turn round, improve the security of driving.

Referring to fig. 3, optionally, in a specific embodiment, the apparatus further includes: a turn signal switch 301; the turn signal switch 301 is electrically connected to the lamp control module 201.

Specifically, the turn light switch 301 may include a left turn switch and a right turn switch, where left and right are with respect to the vehicle head orientation. The user turning on the left steering switch indicates that the user wants to turn left with respect to the head orientation, and accordingly, the user turning on the right steering switch indicates that the user wants to turn right with respect to the head orientation. The turn signal switch 301 is electrically connected to the lamp control module 201, so that the turn signal switch 301 can directly send the turn signal to the lamp control module 201 after generating the turn signal according to the operation of the user.

In addition, the turn light switch 301 can be electrically connected with the car light control module 201 through a hard wire, so that the stability of electrical connection is ensured, and the connection cost is reduced.

The turn signal switch 301 in the embodiment of the present application may be a physical switch or an electronic switch, which is not limited herein.

Specifically, the turn signal switch 301 is configured to generate a turn signal and send the turn signal to the car light control module 201; the car light control module 201 is further configured to generate a second control signal according to the steering signal, and send the second control signal to the rotating electrical machine 203; the rotary electric machine 203 is also used for driving the lamp 102 to turn in the direction indicated by the turn signal according to the second control signal.

Based on the above description that the turn signal switch 301 may include a left turn switch and a right turn switch, the turn signal may also include a left turn signal and a right turn signal. Optionally, if the user turns on the left steering switch, the steering signal is a left steering signal, and if the user turns on the right steering switch, the steering signal is a right steering signal, that is, the direction indicated by the left steering signal is left, and the direction indicated by the right steering signal is right. On this basis, the second control signal may also include a second left steering control signal and a second right steering control signal, and the vehicle light control module 201 is further configured to generate the second left steering control signal according to the left steering signal and generate the second right steering control signal according to the right steering signal. The rotating electrical machine 203 is further configured to drive the lamp 102 to turn left according to the second left-turning control signal, and drive the lamp 102 to turn right according to the second right-turning control signal.

Referring to fig. 4, optionally, in a specific embodiment, the apparatus further includes: a micro control unit 401; the micro control unit 401 is electrically connected with the vehicle lamp control module 201; the micro control unit 401 is used for acquiring speed information of the two-wheeled vehicle and/or the three-wheeled vehicle and sending the speed information to the vehicle lamp control module 201; the car light control module 201 is further configured to generate a first control signal according to the direction of the torsion angle when the speed information is greater than a second preset threshold and the angle change rate is greater than a third preset threshold, where the third preset threshold is smaller than the first preset threshold.

The micro control unit 401, i.e. an mcu (microcontroller), may also be called a single-chip microcomputer or a single-chip microcomputer, and is a computer at a chip level. The micro control unit 401 may collect and centrally process the work information of the components of the two-wheeled vehicle and/or the three-wheeled vehicle to coordinate the cooperative work of the components.

The speed of the two-and/or three-wheeled vehicle can significantly affect the turn time, and for the same curve, the faster the speed, the less turn time is required. In order to enable the vehicle lamp 102 to turn ahead to illuminate the inner area of the curve in response to the steering demand of the user when the two-wheeled vehicle and/or the three-wheeled vehicle is running at a high speed, in the embodiment of the present application, when the set speed information is greater than the second preset threshold, the angle change rate only needs to be greater than a third preset threshold, and the vehicle lamp control module 201 can generate the first control signal to instruct the rotating motor 203 to drive the vehicle lamp 102 to turn ahead in the twisting direction, where the third preset threshold is smaller than the first preset threshold.

The second threshold and the third threshold may be set according to actual requirements or determined according to experiments, which is not limited in this application.

Alternatively, the second control signal may further instruct the rotating electrical machine 203 to drive the lamp 102 to turn at a specific turning angle, and the specific turning angle of the lamp 102 to turn in the twisting direction may be a preset fixed angle, which is not particularly limited in this application.

It should be noted that the micro control unit 401 may be electrically connected to the vehicle lamp control module 201 based on an RS485 communication protocol, so as to improve the stability of signal transmission and noise immunity between the micro control unit 401 and the vehicle lamp control module 201.

It should be noted that, the four-wheel vehicle is in the operation, and the speed of a vehicle changes frequently, if follow the speed of a vehicle and carry out the traffic light control, will seriously influence the life of car light and structure thereof, and the frequent change of car light needs the driver to adapt to the visual scope ceaselessly simultaneously, also does not do benefit to high-speed driving safety, consequently, the four-wheel vehicle can not carry out the adjustment of car light according to the speed of a vehicle usually.

Referring to fig. 5, optionally, in a specific embodiment, the apparatus further includes: a height motor 501; the headlight 102 is also mounted to the vehicle head by a height motor 501.

The connection relationship of the lamp 102, the height motor 501, the rotating motor 203 and the vehicle head can be as shown in fig. 5, that is, the height motor 501 is connected with the lamp 102 and the rotating motor 203, respectively, and the rotating motor 203 is connected with the vehicle head. Thus, when the rotating motor 203 drives the lamp 102 to turn, the height motor 501 is driven to turn together.

The height motor 501 may be a component capable of adjusting the height of a load, and the application does not limit the specific type or model of the height motor 501.

Referring to fig. 6, the connection relationship between the lamp 102, the height motor 501, the rotating motor 203 and the vehicle head can also be as shown in fig. 6, that is, the rotating motor 203 is connected to the lamp 102 and the height motor 501 respectively, and the height motor 501 is connected to the vehicle head. Thus, the height of the rotary motor 203 is adjusted by the height motor 501 when the height of the lamp 102 is adjusted.

The gyroscope 202 is also used for acquiring the pitch angle of the steering column 103 and sending the pitch angle to the car light control module 201; the car light control module 201 is further configured to generate a third control signal according to the pitch angle, and send the third control signal to the altitude motor 501; the height motor 501 is used to adjust the height of the vehicle lamp 102 according to the third control signal.

For the specific definition of the pitch angle, please refer to the description of the foregoing embodiments, which will not be described herein.

Generally, the light emitted from the headlight 102 is not oriented parallel to the vehicle head, but is biased to irradiate the road surface in front of the vehicle head. On this basis, when the user drives the two-wheeled vehicle and/or the three-wheeled vehicle to a road with a slope, the area illuminated by the lamp 102 may not meet the actual demand of the user.

Specifically, when going uphill, the illumination area of the vehicle lamp 102 is somewhat shortened compared to that in the flat ground due to the influence of the gradient, and illumination at a safe distance may not be achieved; when the vehicle goes downhill, the vehicle lamp 102 may not be able to illuminate a short distance area ahead, which affects driving safety.

In addition, the four-wheeled vehicle is generally not provided with a function of automatically adjusting the height of the lamp because the lamp is usually disposed at a relatively fixed position due to the structural limitation of the lamp.

In order to solve the problem, in the embodiment of the present application, the gyroscope 202 is used to acquire the pitch angle of the steering column 103, and the pitch angle is sent to the car light control module 201; generating a third control signal according to the pitch angle through the car light control module 201, and sending the third control signal to the height motor 501; the height motor 501 is used for adjusting the height of the vehicle lamp 102 according to the third control signal, so that the vehicle lamp 102 can increase the illumination distance when ascending, and the vehicle lamp 102 can illuminate a front short-distance area when descending. Specifically, if the pitch angle indicates that the two-wheeled vehicle and/or the three-wheeled vehicle is on an uphill slope, the third control signal for instructing the height motor 501 to increase the height of the lamp 102 is generated, and if the pitch angle indicates that the two-wheeled vehicle and/or the three-wheeled vehicle is on a downhill slope, the third control signal for instructing the height motor 501 to decrease the height of the lamp 102 is generated, so that the illumination distance is increased when the vehicle ascends the uphill slope, and the illumination distance is decreased when the vehicle descends the downhill slope, thereby increasing the driving safety.

It should be noted that the third control signal can also instruct the height motor 501 to adjust the height adjustment value of the car light 102, and the height adjustment value can be determined according to the size of the pitch angle. For example, a functional relationship or a mapping relationship between the altitude adjustment value and the pitch angle may be pre-established and stored in the lamp control module 201, and after the lamp control module 201 receives the pitch angle sent by the gyroscope 202, the altitude adjustment direction and the altitude adjustment value may be determined according to the pitch angle and the functional relationship or the mapping relationship, and then the first control signal may be generated according to the altitude adjustment value and the altitude adjustment direction.

Of course, this is only an exemplary illustration, and the height adjustment value may also be preset to a fixed value, which is not specifically limited in this application.

Optionally, in a specific embodiment, the apparatus further comprises: a three-axis accelerometer; the triaxial accelerometer is relatively fixedly arranged with the steering column 103 and electrically connected with the car light control module 201; the three-axis accelerometer is used for acquiring acceleration information of the two-wheeled vehicle and/or the three-wheeled vehicle and sending the acceleration information to the vehicle lamp control module 201; the car light control module 201 is specifically configured to generate a third control signal according to the acceleration information and the pitch angle.

In particular, the three-axis accelerometer is used for acceleration information of the two-wheeled vehicle and/or the three-wheeled vehicle in three axial directions, which may particularly refer to an x-axis, a y-axis and a z-axis in the foregoing embodiments.

When a user drives a two-wheeled vehicle and/or a three-wheeled vehicle to accelerate, the head of the vehicle is usually lower than the head of the vehicle in a natural state due to positive acceleration, so that the lighting distance is longer at the moment; when the speed is reduced, the illumination distance is usually required to be short. On this basis, the embodiment of the application acquires acceleration information of the two-wheeled vehicle and/or the three-wheeled vehicle through the three-axis accelerometer, and sends the acceleration information to the vehicle lamp control module 201; the vehicle light control module 201 generates a third control signal instructing the height motor 501 to adjust the height of the vehicle light 102 according to the acceleration information. Specifically, if the acceleration information indicates that the two-wheeled vehicle and/or the three-wheeled vehicle is in an acceleration state, the third control signal instructing the height motor 501 to increase the height of the lamp 102 is generated, and if the acceleration information indicates that the two-wheeled vehicle and/or the three-wheeled vehicle is in a deceleration state, the third control signal instructing the height motor 501 to decrease the height of the lamp 102 is generated, so that the illumination distance is increased during acceleration and decreased during deceleration.

Referring to fig. 7, it should be noted that the gyroscope 202 and the three-axis accelerometer in the embodiment of the present application may be integrated into a six-axis sensor 701.

Optionally, in a specific embodiment, the apparatus further comprises: a high beam and low beam motor 702 and a high beam and low beam switch 703; the high beam and low beam switch 703 is connected with the car light control module 201; the far and near light motor 702 is respectively connected with the vehicle lamp control module 201 and the vehicle lamp 102; the high beam and low beam switch 703 is used for generating a high beam and low beam adjusting signal and sending the high beam and low beam adjusting signal to the car light control module 201; the car light control module 201 is further configured to generate a fourth control signal according to the high beam and low beam adjusting signal, and send the fourth control signal to the high beam and low beam electric machine 702; the high beam and low beam motor 702 is used for controlling the vehicle lamp 102 to turn on a high beam or turn on a low beam according to a fourth control signal.

Specifically, the high beam and low beam motor 702 may be connected to a lighting element of the vehicle lamp 102, such as a high beam and a low beam of the vehicle lamp 102, which can control the lighting element of the vehicle lamp 102 to turn on or off.

The high beam switch 703 and the low beam switch 703 are used to generate a high beam adjustment signal and a low beam adjustment signal, and specifically, the user can turn on the high beam switch 703 and the low beam switch 703 to generate the high beam adjustment signal and the low beam adjustment signal.

Optionally, far and near light switch 703 can include far light switch and passing light switch, and wherein far light switch and passing light switch all are connected with car light control module 201, correspondingly, and far and near light modulation signal also can include far light modulation signal and passing light modulation signal, and far light modulation signal is generated by far light switch, and passing light modulation signal is generated by passing light switch.

On this basis, the fourth control signal also can be including opening the high beam signal and opening the passing light signal, if vehicle light control module 201 receives the high beam adjustment signal, then open the high beam signal according to the high beam adjustment signal generation, if vehicle light control module 201 receives the passing light adjustment signal, then open the passing light signal according to passing light adjustment signal generation. The high beam and low beam motor 702 is further configured to control the car light 102 to turn on a high beam according to the high beam signal, and control the car light 102 to turn on a low beam according to the low beam signal.

In addition, the high beam switch 703 may be a physical switch or an electronic switch, and is not limited herein.

Optionally, in a specific embodiment, the apparatus further comprises: a light sensor 704; the light sensor 704 is electrically connected with the vehicle lamp control module 201; the vehicle lamp control module 201 is also electrically connected with the vehicle lamp 102; the light sensor 704 is used for collecting the ambient light brightness and sending the ambient light brightness to the car light control module 201; the vehicle light control module 201 is also used for adjusting the brightness of the vehicle light 102 according to the ambient light brightness.

The vehicle lamp control device provided by the embodiment of the application can adjust the brightness of the vehicle lamp 102 in a self-adaptive manner according to the ambient light brightness, and is beneficial to improving the driving experience of a user.

In an alternative embodiment, three thresholds may be set for the ambient light brightness from small to large, i.e., O, P, and Q, and the brightness of the lamp 102 is from the brightest to M, the next to N, and the darkest to K. The control logic of the car light control module 201 may specifically be: when the ambient light brightness is less than O, the brightness of the car light 102 is adjusted to M; when the ambient light brightness is larger than O and smaller than P, the brightness of the vehicle lamp 102 is adjusted to be N; when the ambient light brightness is larger than P and smaller than Q, the brightness of the car lamp 102 is adjusted to K; when the ambient light level is greater than Q, the vehicle light 102 is turned off.

In another optional embodiment, the vehicle light control module 201 may be further specifically configured to, when the ambient light brightness is less than a fourth preset threshold, adjust the brightness of the vehicle light 102 to a brightness threshold corresponding to the vehicle light 102, that is, to modulate the maximum brightness, and when the ambient light brightness is greater than a fifth preset threshold, turn off the vehicle light 102, where the fifth preset threshold is greater than or equal to the fourth preset threshold.

The fourth preset threshold and the fifth preset threshold may be set as needed, and are not limited herein.

Optionally, in a specific embodiment, the apparatus further comprises: a meter; the meter is fixed to the steering column 103, and the gyroscope 202 is fixed to the meter; the instrument is used for transmitting the rotation information to the car light control module 201 based on an RS485 communication protocol.

Alternatively, the three-axis accelerometer may be integrated into a meter, and the meter may also display the operating status information of the two-wheeled electric vehicle, such as speed, mileage, etc.

The instrument is connected with the car light control module 201 based on an RS485 communication protocol, and the stability of signal transmission and noise interference resistance between the instrument and the car light control module 201 are improved.

The embodiment of the application provides a car light controlling means, at first gather steering column 103's rotation information through gyroscope 202, and with rotation information transmission to car light control module 201, then when the angle rate of change in the rotation information through car light control module 201 is greater than first preset threshold value, the direction of torsion according to the torsion angle in the rotation information generates first control signal, and send first control signal to rotating electrical machines 203, turn to the direction of torsion according to first control signal drive car light 102 through rotating electrical machines 203 at last, thereby control car light 102 and illuminate the turn region in advance when two wheeler and/or tricycle need turn, the security of illumination has been improved.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A vehicle light control device, characterized in that, be applied to two wheeler and/or tricycle, two wheeler and/or tricycle include steering column and locomotive, the device includes:

the system comprises a vehicle lamp, a vehicle lamp control module, a gyroscope and a rotating motor;

the car lamp control module is electrically connected with the gyroscope and the rotating motor respectively; the gyroscope and the steering column are relatively fixedly arranged; the car lamp is mounted on the car head through the rotating motor;

the gyroscope is used for collecting the rotation information of the steering column and sending the rotation information to the car light control module, wherein the rotation information comprises: torsion angle and rate of change of angle;

the rotating motor is used for driving the car light to turn to the twisting direction according to the first control signal.

2. The vehicular lamp control device according to claim 1, characterized in that the device further comprises: a turn signal switch; the turn light switch is electrically connected with the car light control module;

the rotating motor is also used for driving the vehicle lamp to turn to the direction indicated by the turning signal according to the second control signal.

3. The vehicular lamp control device according to claim 1, characterized in that the device further comprises: a micro control unit; the micro control unit is electrically connected with the vehicle lamp control module;

the car light control module is further used for generating a first control signal according to the direction of the torsion angle when the speed information is larger than a second preset threshold value and the angle change rate is larger than a third preset threshold value, wherein the third preset threshold value is smaller than the first preset threshold value.

4. The vehicular lamp control device according to claim 1, characterized in that the device further comprises: a height motor; the car light is also arranged on the car head through the height motor;

the car light control module is further used for generating a third control signal according to the pitch angle and sending the third control signal to the height motor;

the height motor is used for adjusting the height of the car lamp according to the third control signal.

5. The vehicular lamp control device according to claim 4, characterized in that the device further comprises: a three-axis accelerometer; the three-axis accelerometer is fixedly arranged relative to the steering column and is electrically connected with the car lamp control module;

the three-axis accelerometer is used for acquiring acceleration information of the two-wheel vehicle and/or the three-wheel vehicle and sending the acceleration information to the vehicle lamp control module;

the vehicle lamp control module is specifically configured to generate the third control signal according to the acceleration information and the pitch angle.

6. The vehicular lamp control device according to claim 1, characterized in that the device further comprises: a far and near light motor and a far and near light switch; the high beam and low beam switch is connected with the car lamp control module; the far and near photoelectric motor is respectively connected with the car lamp control module and the car lamp;

the car light control module is further used for generating a fourth control signal according to the high-beam and low-beam light adjusting signal and sending the fourth control signal to the high-beam and low-beam motor;

7. The vehicular lamp control device according to claim 6, wherein the high beam and low beam switch comprises: a high beam switch and a low beam switch; the high beam switch and the dipped beam switch are both connected with the car lamp control module;

the high beam and low beam adjusting signals comprise high beam adjusting signals and low beam adjusting signals, the high beam adjusting signals are generated by the high beam switch, and the low beam adjusting signals are generated by the low beam switch;

the far and near light motor is used for controlling the vehicle lamp to turn on a far light according to the far light signal and controlling the vehicle lamp to turn on a near light according to the near light signal.

8. The vehicular lamp control device according to claim 1, characterized in that the device further comprises: a light sensor; the light sensor is electrically connected with the car lamp control module; the car light control module is also electrically connected with the car light;

9. The vehicle lamp control device according to claim 8, wherein the vehicle lamp control module is specifically configured to adjust the brightness of the vehicle lamp to a brightness threshold corresponding to the vehicle lamp when the ambient light brightness is less than a fourth preset threshold, and turn off the vehicle lamp when the ambient light brightness is greater than a fifth preset threshold, where the fifth preset threshold is greater than or equal to the fourth preset threshold.

10. The vehicular lamp control device according to claim 1, characterized in that the device further comprises: a meter; the instrument is fixed to the steering column, and the gyroscope is fixed to the instrument;