WO2021022853A1

WO2021022853A1 - Vehicle tail lamp self-adaptive control system and method, and vehicle

Info

Publication number: WO2021022853A1
Application number: PCT/CN2020/088860
Authority: WO
Inventors: 李萌; 朱江; 唐杰
Original assignee: 常州星宇车灯股份有限公司
Priority date: 2019-08-08
Filing date: 2020-05-07
Publication date: 2021-02-11
Also published as: CN112339655B; CN112339655A

Abstract

Provided are a vehicle tail lamp self-adaptive control system and method, and a vehicle. The vehicle tail lamp self-adaptive control system comprises: a driving environment test module (10) for testing driving environment information of a vehicle; a vehicle state test module (20) for testing driving state information of the vehicle; a module (30) for testing a following vehicle behind the vehicle for testing information of a following vehicle behind the vehicle; a vehicle rear brightness acquisition module (40) for acquiring brightness information of illumination behind the vehicle; a main control module (50) respectively connected to the driving environment test module (10), the vehicle state test module (20), the module (30) for testing a following vehicle behind the vehicle and the vehicle rear brightness acquisition module (40) and connected to a vehicle tail lamp, wherein the main control module (50) is used for controlling the vehicle tail lamp to emit warning light when the vehicle is in a night driving environment and in a driving state, a following vehicle is present within a preset distance to the rear, and the brightness of rear illumination is greater than a preset brightness threshold. By means of the system, an external driving environment and a vehicle state can be automatically determined, and a vehicle tail lamp can be automatically controlled to emit warning light.

Description

Vehicle taillight adaptive control system, method and vehicle

Technical field

The invention relates to the technical field of vehicle lamp control, in particular to a vehicle tail light adaptive control system, a vehicle and a vehicle tail light adaptive control method.

Background technique

At present, automobiles have become one of the more important means of transportation for people, occupying a more important position in people's daily life, and their safety has also attracted more and more attention. Especially in recent years, the frequent occurrence of automobile traffic accidents has made people pay more attention to the safety of automobiles.

Among them, some automobile traffic accidents are caused by car drivers misusing the high-beam lights. For example, when following a car, the car behind turns on the high-beam lights at a close distance, causing the center rearview mirror and left and right rearviews of the preceding car The mirror reflects the strong light, which affects the sight of the driver in front of the vehicle, thus causing automobile traffic accidents. Therefore, when following a car, if the high beam of the following car affects the normal driving of the driver in front, a suitable method is needed to solve the problem.

There are two methods commonly used at present. One is to remind the driver of the vehicle behind to turn off the high beams by tapping the brakes a few times, but this method is likely to cause sudden braking due to excessive braking force, causing the following vehicles to slow down too late. A car accident occurs; the other is to manually turn on the anti-glare function of the rearview mirror to avoid the influence of the high beams of the rear car, but this method requires the driver to be distracted to manually turn it on, which is easy to be caused by the driver’s distraction Come driving safety hazards.

Summary of the invention

The present invention aims to solve one of the technical problems in the above technology at least to a certain extent. To this end, an object of the present invention is to propose an adaptive control system for vehicle taillights, which can automatically determine whether the vehicle is in a night driving environment during driving and the vehicle behind it will continue to turn on the high beam at close range, and when the vehicle is at night When the driving environment and the rear vehicle continue to turn on the high beam at a close distance, the rear lights of the vehicle are automatically controlled to emit a warning light to remind the rear vehicle to turn off the high beam or open the following distance, thereby avoiding the driver of the vehicle from continuing the high beam due to the close distance of the vehicle Irradiation produces a dazzling sensation and improves the safety of driving at night.

The second object of the present invention is to provide a vehicle.

The third objective of the present invention is to provide an adaptive control method for vehicle taillights.

In order to achieve the above objective, an embodiment of the first aspect of the present invention proposes an adaptive control system for vehicle taillights, including: a driving environment detection module, the driving environment detection module is used to detect the driving environment information of the vehicle; a vehicle state detection module, The vehicle state detection module is used to detect the driving state information of the vehicle; the vehicle following vehicle detection module is used to detect the information of the following vehicle behind the vehicle; the vehicle rear brightness collection module, so The rear-of-vehicle brightness collection module is used to collect the brightness information of the rear light of the vehicle; the main control module, the main control module is respectively connected with the driving environment detection module, the vehicle state detection module, and the following vehicle detection module Connected to the rear brightness collection module and connected to the vehicle taillights, and the main control module is used for when the vehicle is in a night driving environment, is in a driving state, and there is a following vehicle within a preset distance behind and the rear light is illuminated When the brightness of is greater than the preset brightness threshold, the vehicle taillight is controlled to emit a warning light.

According to the vehicle taillight adaptive control system of the embodiment of the present invention, the driving environment detection module, the vehicle state detection module, and the vehicle following detection module respectively correspondingly detect the driving environment information, the driving state information and the following vehicle information of the vehicle. And through the rear brightness collection module to collect the brightness information of the rear light of the vehicle, through the main control module when the vehicle is in a night driving environment, in a driving state, there is a following vehicle within a preset distance behind and the brightness of the rear light is greater than the preset brightness threshold , Control the vehicle's taillights to emit warning lights, so that it can automatically determine whether the vehicle is in a night driving environment and the rear vehicle continues to turn on the high beam at close distances, and the vehicle is in a night driving environment and the rear vehicle continues to turn on at close distances When the high beam is turned on, the taillights of the vehicle are automatically controlled to emit a warning light to remind the vehicles behind to turn off the high beams or open the following distance, so as to avoid the driver of the vehicle from being dazzled by the continuous high beams of the rear vehicles at close range and improve night driving Security.

In addition, the vehicle taillight adaptive control system proposed according to the above-mentioned embodiments of the present invention may also have the following additional technical features:

According to an embodiment of the present invention, the driving environment detection module includes a vehicle GPS (Global Positioning System, global positioning system) system, and the main control module determines the vehicle based on the vehicle's positioning information acquired by the vehicle GPS system Whether the vehicle is in a night driving environment.

According to an embodiment of the present invention, the vehicle state detection module includes a wheel speed sensor, and the main control module determines whether the vehicle is in a driving state according to the wheel speed of the vehicle acquired by the wheel speed sensor.

According to an embodiment of the present invention, the following vehicle detection module includes a camera, and the main control module determines whether there is a following vehicle within a preset distance behind the vehicle according to an image of the vehicle rear acquired by the camera.

According to an embodiment of the present invention, the rear brightness collection module includes a photosensitive sensor.

According to an embodiment of the present invention, the main control module outputs a PWM (Pulse Width Modulation) signal to the taillights of the vehicle to control the brightness or dynamic effects of the taillights of the vehicle, so as to achieve control of the following vehicle Warning.

To achieve the foregoing objective, an embodiment of the second aspect of the present invention proposes a vehicle, including the vehicle tail light adaptive control system proposed in the embodiment of the first aspect.

According to the vehicle of the embodiment of the present invention, by adopting the above-mentioned embodiment to propose a vehicle taillight adaptive control system, it can automatically control the taillights to emit warning lights when driving at night and when the rear vehicles continue to turn on the high beams at close distances to remind the rear vehicles to turn off High beams or open the following distance to improve safety.

In order to achieve the above objective, an embodiment of the third aspect of the present invention proposes an adaptive control method for vehicle taillights, including: detecting vehicle driving environment information to determine whether the vehicle is in a night driving environment; detecting vehicle driving status information To determine whether the vehicle is in a driving state; to detect the following vehicle information behind the vehicle to determine whether there is a following vehicle within a preset distance behind the vehicle; to collect the brightness information of the light behind the vehicle to determine the vehicle Whether the brightness of the rear light is greater than the preset brightness threshold; when the vehicle is in a night driving environment, is in a driving state, there is a following vehicle within a preset distance behind, and the brightness of the rear light is greater than the preset brightness threshold, the vehicle taillight is controlled A warning light is emitted.

According to the vehicle taillight adaptive control method of the embodiment of the present invention, by detecting the driving environment information of the vehicle to determine whether the vehicle is in a night driving environment, detecting the driving state information of the vehicle to determine whether the vehicle is in a driving state, and detecting the following vehicle behind the vehicle Information is used to determine whether there is a following vehicle within a preset distance behind the vehicle, and the brightness information of the light behind the vehicle is collected to determine whether the brightness of the light behind the vehicle is greater than the preset brightness threshold, and the vehicle is in a night driving environment, in a driving state, and When there is a following vehicle within a preset distance and the brightness of the rear light is greater than the preset brightness threshold, the taillight of the vehicle is controlled to emit a warning light, so that it can automatically determine whether the vehicle is in a night driving environment and the rear vehicle continues to be close Turn on the high-beam lights, and automatically control the taillights of the vehicle to emit warning lights when the vehicle is in a night driving environment and the rear vehicles continue to turn on the high-beam lights at close distances, reminding vehicles behind to turn off the high-beam lights or extend the following distance, so as to avoid driving The driver has a dazzling sensation due to the continuous high beam illumination of the rear vehicle at close range, which improves the safety of driving at night.

In addition, the adaptive control method for vehicle taillights proposed according to the above embodiments of the present invention may also have the following additional technical features:

According to an embodiment of the present invention, it is judged whether the vehicle is in a night driving environment according to the positioning information of the vehicle, whether the vehicle is in a driving state is judged according to the wheel speed of the vehicle, and the vehicle is judged according to the image behind the vehicle. State whether there is a following vehicle within a preset distance behind the vehicle.

According to an embodiment of the present invention, by outputting a PWM signal to the vehicle tail light to control the brightness or dynamic effect of the vehicle tail light, a warning to the following vehicle is realized.

Description of the drawings

Fig. 1 is a block diagram of an adaptive control system for vehicle taillights according to an embodiment of the present invention;

Figure 2 is a schematic diagram of a vehicle GPS system according to an embodiment of the present invention;

Fig. 3 is a flowchart of an adaptive control method for vehicle taillights according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Fig. 1 is a block diagram of an adaptive control system for vehicle taillights according to an embodiment of the present invention.

As shown in FIG. 1, the vehicle taillight adaptive control system according to the embodiment of the present invention includes a driving environment detection module 10, a vehicle state detection module 20, a vehicle rear detection module 30, a rear brightness collection module 40 and a main control module 50. Among them, the driving environment detection module 10 is used to detect the driving environment information of the vehicle; the vehicle state detection module 20 is used to detect the driving state information of the vehicle; the following vehicle detection module 30 is used to detect the information of the following vehicle behind the vehicle; The collection module 40 is used to collect the brightness information of the rear light of the vehicle; the main control module 50 is respectively connected to the driving environment detection module 10, the vehicle state detection module 20, the vehicle rear detection module 30 and the rear brightness collection module 40, and is connected to the vehicle Tail lights, the main control module 50 is used to control the vehicle tail lights to emit warning lights when the vehicle is in a night driving environment, is in a driving state, there is a following vehicle within a preset distance behind and the brightness of the rear light is greater than a preset brightness threshold.

In an embodiment of the present invention, referring to FIG. 2, the driving environment detection module 10 may include a vehicle GPS system, and the main control module 50 may determine the current position according to the vehicle's positioning information obtained by the vehicle GPS system, that is, the latitude and longitude information of the current position of the vehicle The sunset time of the location, combined with the time of the current location to determine whether the vehicle is in a night driving environment. Among them, the vehicle GPS system can be connected to the main control module 50 through a LIN (Local Interconnect Network) bus, and the detected positioning information of the vehicle is input to the main control module 50 through the LIN bus.

In another embodiment of the present invention, the driving environment information of the vehicle can also be detected in other ways. For example, the driving environment detection module 10 may include a light sensor, and the main control module 50 may determine whether the vehicle is driving at night according to the light intensity information of the external environment collected by the light sensor.

In another embodiment of the present invention, the time for the vehicle to automatically enter the night driving mode can be manually set before the vehicle is running, and the main control module 50 can compare the current time with the set time to determine whether the vehicle is running at night .

In an embodiment of the present invention, the vehicle state detection module 20 may include a wheel speed sensor, and the main control module 50 may determine whether the vehicle is in a driving state according to the wheel speed of the vehicle acquired by the wheel speed sensor. The vehicle state detection module 20 may also include a wheel speed processor. The wheel speed processor can be used to collect and process the wheel speed information of the vehicle detected by the wheel speed sensor, and can be connected to the main control module 50 via the LIN bus to process the The wheel speed information of the vehicle is input to the main control module 50, and the main control module 50 can determine whether the vehicle is in a driving state based on the processed wheel speed information of the vehicle.

In another embodiment of the present invention, the driving state information of the vehicle can also be detected in other ways. For example, the vehicle state detection module 20 may include a vehicle speed sensor, and the main control module 50 may determine whether the vehicle is in a driving state according to the speed of the vehicle acquired by the vehicle speed sensor.

In an embodiment of the present invention, the following detection module 30 may include a camera, and the main control module 50 may determine whether there is a following vehicle within a preset distance behind the vehicle based on the image of the rear of the vehicle acquired by the camera. The preset distance may be the distance between the two vehicles when the illumination of the high beam of the rear vehicle will have a dazzling effect on the front vehicle. The following vehicle detection module 30 may also include an image processor. The image processor can be used to collect and process the pattern taken by the camera, and extract the information of the following vehicle in the pattern, that is, the position information of the following vehicle. The bus is connected to the main control module 50, and the extracted following vehicle information is input to the main control module 50. The main control module 50 can determine whether there is a following vehicle within a preset distance behind the vehicle based on the input following vehicle information.

In an embodiment of the present invention, the rear brightness collection module 40 may include a photosensitive sensor, and the main control module 50 may collect brightness information of the rear light of the vehicle according to the photosensitive sensor to determine whether the brightness of the rear light of the vehicle is greater than a preset brightness threshold. Among them, the photosensitive sensor can be connected to the main control module 50 through the LIN bus, and the collected brightness information of the rear light of the vehicle is input to the main control module 50 through the LIN bus.

In one embodiment of the present invention, when the main control module 50 determines that the vehicle is in a night driving environment, is in a driving state, has a following vehicle within a preset distance behind, and the brightness of the rear light is greater than the preset brightness threshold according to the input information, The main control module 50 can control the brightness or dynamic effects of the vehicle tail lights by outputting a PWM signal to the vehicle tail lights. Specifically, the main control module 50 can input a PWM signal to the drive controller of the vehicle tail light, the drive controller processes the input PWM signal, and controls the brightness or dynamic effect of the vehicle tail light through the processed PWM signal to realize the tracking Warning of vehicles.

The vehicle taillight adaptive control system proposed by the embodiment of the fundamental invention is used to detect the driving environment information, driving status information and the following vehicles behind the vehicle through the driving environment detection module, the vehicle status detection module and the rear following detection module respectively. Information, and collect the brightness information of the rear light of the vehicle through the rear brightness collection module. Through the main control module, the vehicle is in a night driving environment, in a driving state, there are following vehicles within a preset distance behind and the brightness of the rear light is greater than the preset brightness When the threshold is set, the taillights of the vehicle are controlled to emit warning lights, so that it can automatically determine whether the vehicle is in a night driving environment and the rear vehicle continues to turn on the high beam at close distances, and when the vehicle is in a night driving environment and the rear vehicle is close When the high beams are continuously turned on, the taillights of the vehicle are automatically controlled to emit warning lights to remind the vehicles behind to turn off the high beams or open the following distance, so as to prevent the driver of the vehicle from being dazzled by the continuous high beams of the vehicles behind. Safety of driving at night.

Corresponding to the foregoing embodiment, the present invention also provides a vehicle.

The vehicle proposed in the embodiment of the present invention includes the vehicle tail light adaptive control system proposed in the above-mentioned embodiment, and the specific implementation can refer to the above-mentioned embodiment.

According to the vehicle proposed by the embodiment of the present invention, by adopting the above-mentioned embodiment, the vehicle taillight adaptive control system can automatically control the taillight of the vehicle to emit warning light when the vehicle is driving at night and the vehicle behind it continuously turns on the high beam at close range. The rear vehicle turns off the high beams or opens the following distance to improve safety.

Corresponding to the vehicle tail light adaptive control system proposed in the above embodiments, the present invention also provides an adaptive control method for vehicle tail lights.

As shown in FIG. 2, the adaptive control method for vehicle taillights according to an embodiment of the present invention includes:

S1, detecting the driving environment information of the vehicle to determine whether the vehicle is in a night driving environment.

In an embodiment of the present invention, the vehicle GPS system can be used to detect the vehicle's driving environment information, such as positioning information, that is, the longitude and latitude information of the current position of the vehicle, determine the sunset time of the current position, and determine whether the vehicle is in Driving environment at night.

In another embodiment of the present invention, a light sensor may be used to detect the driving environment information of the vehicle, such as light intensity information of the external environment, to determine whether the vehicle is in a night driving environment.

S2, detecting the driving state information of the vehicle to determine whether the vehicle is in a driving state.

In an embodiment of the present invention, a wheel speed sensor may be used to detect the driving state information of the vehicle, for example, the wheel speed information of the vehicle determines whether the vehicle is in a driving state.

In another embodiment of the present invention, a vehicle speed sensor may be used to detect the driving state information of the vehicle, for example, the speed information of the vehicle to determine whether the vehicle is in a driving state.

S3: Detect the following vehicle information behind the vehicle to determine whether there is a following vehicle within a preset distance behind the vehicle.

In an embodiment of the present invention, a camera may be used to capture an image of the rear of the vehicle, and the image of the rear of the vehicle captured by the camera is used to determine whether there is a following vehicle within a preset distance behind the vehicle. Specifically, the image processor can be used to collect and process the pattern captured by the camera, extract the following vehicle information in the pattern, that is, the position information of the following vehicle, and determine that the vehicle is within a preset distance behind the vehicle based on the position information of the following vehicle Whether there are following vehicles. The preset distance may be the distance between the two vehicles when the illumination of the high beam of the rear vehicle will have a dazzling effect on the front vehicle.

S4: Collect brightness information of the light behind the vehicle to determine whether the brightness of the light behind the vehicle is greater than a preset brightness threshold.

In an embodiment of the present invention, a photosensitive sensor may be used to collect the brightness information of the light behind the vehicle to determine whether the brightness of the light behind the vehicle is greater than a preset brightness threshold.

S5: When the vehicle is in a night driving environment, is in a driving state, there is a following vehicle within a preset distance behind, and the brightness of the rear light is greater than a preset brightness threshold, control the taillight of the vehicle to emit a warning light.

In an embodiment of the present invention, a PWM signal can be output to the taillights of the vehicle to control the brightness or dynamic effects of the taillights of the vehicle, so as to realize the warning of following vehicles. Specifically, by inputting a PWM signal to the driving controller of the vehicle taillight, the driving controller processes the input PWM signal, and controls the brightness or dynamic effect of the vehicle taillight through the processed PWM signal, so as to realize the warning of following vehicles.

According to the adaptive control method for vehicle taillights proposed in the embodiments of the present invention, the vehicle is detected to determine whether the vehicle is in a night driving environment by detecting the driving environment information of the vehicle, the driving state information of the vehicle is detected to determine whether the vehicle is in a driving state, and the following vehicle is detected Vehicle information is used to determine whether there is a following vehicle within a preset distance behind the vehicle, and the brightness information of the light behind the vehicle is collected to determine whether the brightness of the light behind the vehicle is greater than the preset brightness threshold, and the vehicle is in a night driving environment, in a driving state, When there is a following vehicle within a preset distance behind and the brightness of the rear light is greater than the preset brightness threshold, the taillight of the vehicle is controlled to emit a warning light, so that it can automatically determine whether the vehicle is in a night driving environment and the rear vehicle is close Continuously turn on the high beams, and automatically control the taillights of the vehicle to emit warning lights when the vehicle is in a night driving environment and the rear vehicles continue to turn on the high beams at close distances, reminding the rear vehicles to turn off the high beams or extend the following distance, so as to avoid vehicles The driver has a dazzling sensation due to the continuous high beam illumination of the vehicle behind it, which improves the safety of driving at night.

In the description of this specification, terms such as "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or a whole; it can be a mechanical connection or an electrical connection; It can be directly connected, or indirectly connected through an intermediate medium, and it can be a communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , Structure, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials, or characteristics may be combined in any one or more embodiments or examples in an appropriate manner. In addition, those skilled in the art can combine and combine the different embodiments or examples and the characteristics of the different embodiments or examples described in this specification without contradicting each other.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. And variations, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

An adaptive control system for vehicle taillights, which is characterized by comprising:

A driving environment detection module, the driving environment detection module is used to detect the driving environment information of the vehicle;

A vehicle state detection module, the vehicle state detection module is used to detect the driving state information of the vehicle;

A car following car detection module, the car following car detection module is used to detect the information of the following car behind the vehicle;

A rear brightness collection module, where the rear brightness collection module is used to collect brightness information of the light behind the vehicle;

A main control module, which is connected to the driving environment detection module, the vehicle state detection module, the vehicle following detection module, and the vehicle rear brightness collection module, respectively, and is connected to the vehicle taillight, The main control module is used for controlling the vehicle taillight to emit warning light when the vehicle is in a night driving environment, is in a driving state, there is a following vehicle within a preset distance behind, and the brightness of the rear light is greater than a preset brightness threshold.
The vehicle taillight adaptive control system according to claim 1, wherein the driving environment detection module includes a vehicle GPS system, and the main control module determines the location of the vehicle based on the vehicle's positioning information acquired by the vehicle GPS system. State whether the vehicle is in a night driving environment.
The vehicle tail light adaptive control system according to claim 1, wherein the vehicle state detection module includes a wheel speed sensor, and the main control module determines the wheel speed of the vehicle according to the wheel speed sensor. State whether the vehicle is in a driving state.
The vehicle tail light adaptive control system according to claim 1, wherein the vehicle following detection module includes a camera, and the main control module determines the rear of the vehicle according to the image of the rear of the vehicle acquired by the camera. Whether there are following vehicles within the preset distance.
The adaptive control system for vehicle taillights according to claim 1, wherein the rear brightness collection module comprises a photosensitive sensor.
The vehicle tail light adaptive control system according to claim 1, wherein the main control module outputs a PWM signal to the vehicle tail light to control the brightness or dynamic effect of the vehicle tail light, so as to realize the control of the following vehicle Warning of vehicles.
A vehicle, characterized by comprising the vehicle tail light adaptive control system according to any one of claims 1-6.
An adaptive control method for vehicle taillights, characterized in that it includes:

Detecting the driving environment information of the vehicle to determine whether the vehicle is in a night driving environment;

Detecting the driving state information of the vehicle to determine whether the vehicle is in a driving state;

Detecting the following vehicle information behind the vehicle to determine whether there is a following vehicle within a preset distance behind the vehicle;

Collecting the brightness information of the light behind the vehicle to determine whether the brightness of the light behind the vehicle is greater than a preset brightness threshold;

When the vehicle is in a night driving environment, in a driving state, there is a following vehicle within a preset distance behind, and the brightness of the rear light is greater than a preset brightness threshold, the vehicle taillight is controlled to emit a warning light.
The adaptive control method for vehicle taillights according to claim 8, wherein it is determined whether the vehicle is in a night driving environment according to the positioning information of the vehicle, and whether the vehicle is in a driving environment is determined according to the wheel speed of the vehicle. In the driving state, it is determined whether there is a following vehicle within a preset distance behind the vehicle based on the image behind the vehicle.
8. The adaptive control method for vehicle taillights according to claim 8, characterized in that by outputting a PWM signal to the vehicle taillights to control the brightness or dynamic effects of the vehicle taillights, a warning to the following vehicles is realized.