CN110949241A - Vehicle braking reminding method and device and vehicle - Google Patents
Vehicle braking reminding method and device and vehicle Download PDFInfo
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- CN110949241A CN110949241A CN201811127011.0A CN201811127011A CN110949241A CN 110949241 A CN110949241 A CN 110949241A CN 201811127011 A CN201811127011 A CN 201811127011A CN 110949241 A CN110949241 A CN 110949241A
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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
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
- B60Q1/444—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal with indication of the braking strength or speed changes, e.g. by changing shape or intensity of the indication
Abstract
The application relates to a vehicle braking reminding method, a vehicle braking reminding device and a vehicle, wherein the vehicle braking reminding method comprises the following steps: when the braking signal is received, judging whether the braking signal is an emergency braking signal; if the braking signal is an emergency braking signal, determining working parameters of the tail lamp of the vehicle according to the running state of the rear vehicle relative to the vehicle, wherein the working parameters comprise light flicker frequency and/or light color; and controlling the tail lamp of the vehicle to work according to the working parameters so as to send out an emergency braking prompt. Through this kind of mode, this application can remind in order to avoid knocking into the back car when the vehicle carries out emergency braking to guarantee that the vehicle is gone safely.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to a vehicle braking reminding method and device and a vehicle.
Background
With the rapid development of automobile industry and the improvement of living standard of people in China, the quantity of automobiles owned by families of residents is rapidly increased, and the automobiles gradually become one of indispensable transportation means in the life of people.
However, as the quantity of automobiles increases rapidly, more automobiles are driven on the road, and traffic accidents, particularly rear-end accidents, also occur frequently. In the vehicle driving process, when a driver steps on the brake suddenly when encountering an emergency, if the rear vehicle is not reminded in time and takes corresponding measures, the rear-end collision accident can be caused, and the conventional brake lamp can only prompt the brake state and has a single prompt mode, so that the rear vehicle driver can not effectively know whether the front vehicle brakes suddenly or not, and the rear vehicle driver can cause the rear-end collision accident due to the judgment error.
Disclosure of Invention
An object of the present application is to provide a vehicle braking reminding method, device and vehicle, which can solve the above technical problems, and can remind a rear vehicle to avoid rear-end collision when the vehicle is braked emergently, so as to ensure safe driving of the vehicle.
In order to solve the technical problem, the present application provides a vehicle braking reminding method, including:
when a braking signal is received, judging whether the braking signal is an emergency braking signal;
if the braking signal is an emergency braking signal, determining working parameters of a tail lamp of the vehicle according to the running state of the rear vehicle relative to the vehicle, wherein the working parameters comprise light flicker frequency and/or light color;
and controlling the vehicle tail lamp to work according to the working parameters so as to send an emergency braking prompt.
Wherein, when receiving the braking signal, judge whether the braking signal is the emergency braking signal, include:
when a braking signal is received, acquiring the opening degree of a brake pedal;
calculating the opening degree change rate of the brake pedal according to the acquired opening degree of the brake pedal;
and if the opening degree change rate is greater than or equal to a preset opening degree change rate, determining that the braking signal is an emergency braking signal.
Wherein, when receiving the braking signal, judge whether the braking signal is the emergency braking signal, include:
when a braking signal is received, acquiring the running speed of the vehicle;
calculating the speed change rate of the vehicle according to the acquired running speed;
and if the speed change rate is greater than or equal to a preset speed change rate, determining that the braking signal is an emergency braking signal.
Wherein, according to the operating parameter of the relative driving state of this car of back car with this car of vehicle, operating parameter includes light flicker frequency and/or light colour, includes:
acquiring the driving state of a rear vehicle relative to the vehicle, wherein the driving state comprises a distance and a relative speed;
determining the warning level of the emergency braking signal according to the driving state;
and determining working parameters of the tail lamp of the vehicle according to the warning grade, wherein the working parameters comprise light flicker frequency and/or light color.
Wherein the determining the warning level of the emergency braking signal according to the driving state comprises:
if the relative speed is greater than or equal to a preset relative speed and the distance is less than or equal to a preset distance, determining that the warning grade of the emergency braking signal is first-level early warning;
if the relative speed is greater than or equal to the preset relative speed or the distance is less than or equal to the preset distance, determining that the warning grade of the emergency braking signal is secondary early warning;
and if the relative speed is less than the preset relative speed and the distance is greater than the preset distance, determining that the warning grade of the emergency braking signal is a third-level early warning.
Wherein, the determining the working parameters of the vehicle tail lamp according to the warning grade comprises the following steps:
when the early warning level is primary early warning, acquiring a first working parameter as a working parameter of a vehicle tail lamp, wherein the first working parameter is used for controlling the vehicle tail lamp to flash at a first frequency and display at a first color;
when the early warning level is a secondary early warning level, acquiring a second working parameter as a working parameter of the vehicle tail lamp, wherein the second working parameter is used for controlling the vehicle tail lamp to flash at a second frequency and display at a second color, and the second frequency is smaller than the first frequency;
and when the early warning grade is three-level early warning, acquiring a third working parameter as a working parameter of the vehicle tail lamp, wherein the third working parameter is used for controlling the vehicle tail lamp to flash at a third frequency and display at a third color, and the third frequency is smaller than the second frequency.
After the vehicle tail lamp is controlled to work according to the working parameters to send out an emergency braking prompt, the method further comprises the following steps:
acquiring the distance between the rear vehicle and the vehicle in real time;
and when the distance is smaller than or equal to the preset safety distance, controlling an in-vehicle warning module to send a rear-end collision early warning to the passenger of the vehicle.
The application also provides a vehicle brake reminding device, which comprises a memory and a processor, wherein the memory stores at least one program instruction, and the processor loads and executes the at least one program instruction to realize the following method:
when a braking signal is received, judging whether the braking signal is an emergency braking signal;
if the braking signal is an emergency braking signal, determining working parameters of a tail lamp of the vehicle according to the running state of the rear vehicle relative to the vehicle, wherein the working parameters comprise light flicker frequency and/or light color;
and controlling the vehicle tail lamp to work according to the working parameters so as to send an emergency braking prompt.
The processor executes working parameters for determining the tail lamp of the vehicle according to the running state of the rear vehicle relative to the vehicle, wherein the working parameters comprise light flicker frequency and/or light color, and the working parameters comprise:
acquiring the driving state of a rear vehicle relative to the vehicle, wherein the driving state comprises a distance and a relative speed;
determining the warning level of the emergency braking signal according to the driving state;
and determining working parameters of the tail lamp of the vehicle according to the warning grade, wherein the working parameters comprise light flicker frequency and/or light color.
The application also provides a vehicle, and the vehicle comprises the vehicle brake reminding device.
According to the vehicle brake reminding method, the vehicle brake reminding device and the vehicle, when the brake signal is received, whether the brake signal is an emergency brake signal or not is judged, if the brake signal is the emergency brake signal, working parameters of a vehicle tail lamp are determined according to the running state of a rear vehicle relative to the vehicle, the working parameters comprise light flicker frequency and/or light color, and the vehicle tail lamp is controlled to work according to the working parameters so as to send out emergency brake reminding. Through this kind of mode, this application can remind in order to avoid knocking into the back car when the vehicle carries out emergency braking to guarantee that the vehicle is gone safely.
The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical means of the present application more clearly understood, the present application may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present application more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a flow chart diagram illustrating a vehicle braking alert method according to an exemplary embodiment.
FIG. 2 is a block diagram illustrating a vehicle brake reminder apparatus according to an exemplary embodiment.
Detailed Description
To further explain the technical means and effects of the present application for achieving the intended application, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments for describing specific embodiments, methods, steps, structures, features and effects of the vehicle brake reminding method, device and vehicle according to the present application.
The foregoing and other technical matters, features and effects of the present application will be apparent from the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings. While the present application is susceptible to embodiment and specific details, specific reference will now be made in detail to the present disclosure for the purpose of illustrating the general principles of the invention.
FIG. 1 is a flow chart diagram illustrating a vehicle braking alert method according to an exemplary embodiment. Referring to fig. 1, the vehicle braking reminding method of the present embodiment includes:
and step 110, judging whether the braking signal is an emergency braking signal or not when the braking signal is received.
The braking signal is triggered by the user by stepping on the vehicle brake pedal in the driving process, the force, speed and degree of the user for stepping on the brake pedal are different along with different braking conditions, so that the braking signal can be a general braking signal or an emergency braking signal, the vehicle speed is slowly reduced when the vehicle is generally braked, the rear vehicle can be decelerated in time to avoid rear-end collision, the vehicle speed is rapidly reduced when the vehicle is emergently braked, and the rear vehicle is easy to generate rear-end collision with the vehicle due to untimely deceleration and too short distance, so that the driving safety of the vehicle is influenced.
In one embodiment, when receiving a braking signal, determining whether the braking signal is an emergency braking signal includes:
when a braking signal is received, acquiring the opening degree of a brake pedal;
calculating the opening degree change rate of the brake pedal according to the acquired opening degree of the brake pedal;
and if the opening degree change rate is greater than or equal to the preset opening degree change rate, determining that the brake signal is an emergency brake signal.
In one embodiment, when receiving a braking signal, determining whether the braking signal is an emergency braking signal includes:
when a braking signal is received, acquiring the running speed of the vehicle;
calculating the speed change rate of the vehicle according to the acquired running speed;
and if the speed change rate is greater than or equal to the preset speed change rate, determining that the brake signal is an emergency brake signal.
The opening degree of the brake pedal reflects the stepping-on amplitude of the brake pedal, the larger the stepping-on amplitude of the brake pedal by a user is, the larger the opening degree of the brake pedal is, the opening change rate of the brake pedal reflects the stepping-on speed of the brake pedal, and the faster the stepping-on speed of the brake pedal by the user is, the larger the opening change rate of the brake pedal is, so that after the brake signal is received, whether the vehicle is in an emergency braking state or not can be known by calculating the opening change rate of the brake pedal, and when the opening change rate is greater than or equal to the preset opening change rate, the currently received brake signal can be considered as the emergency brake signal, and the vehicle is in the emergency braking state.
When the vehicle is in an emergency braking state, the vehicle speed has the characteristic of rapid reduction, the speed change rate of the vehicle reflects the speed reduction rate of the vehicle, and the greater the speed change rate is, the faster the vehicle speed is reduced.
And 120, if the braking signal is an emergency braking signal, determining working parameters of the tail lamps of the vehicle according to the running state of the rear vehicle relative to the vehicle, wherein the working parameters comprise light flicker frequency and/or light color.
In one embodiment, determining the working parameters of the vehicle tail lamp according to the driving state of the following vehicle relative to the vehicle, wherein the working parameters comprise the light flicker frequency and/or the light color, and the method comprises the following steps:
acquiring the driving state of the rear vehicle relative to the vehicle, wherein the driving state comprises a distance and a relative speed;
determining the warning level of the emergency braking signal according to the driving state;
and determining the working parameters of the tail lamp of the vehicle according to the warning grade, wherein the working parameters comprise the light flashing frequency and/or the light color.
In one embodiment, determining an alert level for an emergency braking signal based on a driving condition includes:
if the relative speed is greater than or equal to the preset relative speed and the distance is less than or equal to the preset distance, determining the warning grade of the emergency braking signal as first-level early warning;
if the relative speed is greater than or equal to the preset relative speed or the distance is less than or equal to the preset distance, determining the warning grade of the emergency braking signal as a secondary early warning;
and if the relative speed is less than the preset relative speed and the distance is greater than the preset distance, determining that the warning grade of the emergency braking signal is three-level early warning.
In one embodiment, determining an operating parameter of a tail light of a vehicle based on an alert level includes:
when the early warning level is primary early warning, acquiring a first working parameter as a working parameter of the vehicle tail lamp, wherein the first working parameter is used for controlling the vehicle tail lamp to flash at a first frequency and display at a first color;
when the early warning level is a secondary early warning level, acquiring a second working parameter as a working parameter of the vehicle tail lamp, wherein the second working parameter is used for controlling the vehicle tail lamp to flash at a second frequency and display at a second color, and the second frequency is smaller than the first frequency;
and when the early warning grade is three-level early warning, acquiring a third working parameter as a working parameter of the vehicle tail lamp, wherein the third working parameter is used for controlling the vehicle tail lamp to flash at a third frequency and display at a third color, and the third frequency is less than the second frequency.
When the host vehicle is braked emergently, the change of the running state of the rear vehicle relative to the host vehicle caused by braking, such as the change of the running speed and distance of the rear vehicle relative to the host vehicle, determines whether a rear-end collision accident occurs to a large extent, specifically, the relative speed is greater than or equal to the preset relative speed, the distance is less than or equal to the preset distance, the relative position between the rear vehicle and the host vehicle is indicated to change and approach rapidly, the probability of rear-end collision is high, otherwise, the relative speed is less than the preset relative speed, the distance is greater than the preset distance, the relative position between the rear vehicle and the host vehicle is indicated to change and approach in a safe range, the probability of rear-end collision is low, and thus, the danger degree of emergency braking can be determined according to the running state of the rear vehicle relative to the host vehicle, and the warning level of the emergency.
During actual implementation, the relative speed and the distance can be obtained by acquiring corresponding data through a radar, a camera and the like and calculating, when the relative speed is greater than or equal to a preset relative speed and the distance is less than or equal to a preset distance, the warning grade of the emergency braking signal is primary warning, when the relative speed is greater than or equal to the preset relative speed or the distance is less than or equal to the preset distance, namely, when one of the relative speed and the distance exceeds a safety range, the warning grade of the emergency braking signal is secondary warning, and when the relative speed is less than the preset relative speed and the distance is greater than the preset distance, the warning grade of the emergency braking signal is tertiary warning.
According to different warning levels, the vehicle control tail lamp works with different working parameters to warn a rear vehicle, the working parameters are not limited to include light flicker frequency and/or light color, for example, the working parameters can also be light brightness, in an embodiment, the tail lamp can be a vehicle lamp at the tail of the vehicle, such as a width lamp, a brake lamp, a steering lamp, a reversing lamp and a fog lamp, and all the tail lamps are controlled to work with the same working parameters at the same time. In practical implementation, when the early warning level is a first-level early warning, a first working parameter is obtained as a working parameter of the vehicle tail lamp, the first working parameter is used for controlling the vehicle tail lamp to flash at a first frequency and be displayed in a first color, when the early warning level is a second-level early warning, a second working parameter is obtained as a working parameter of the vehicle tail lamp, the second working parameter is used for controlling the vehicle tail lamp to flash at a second frequency and be displayed in a second color, the second frequency is smaller than the first frequency, when the early warning level is a third-level early warning, a third working parameter is obtained as a working parameter of the vehicle tail lamp, the third working parameter is used for controlling the vehicle tail lamp to flash at a third frequency and be displayed in a third color, wherein the second frequency is smaller than the first frequency, the third frequency is smaller than the second frequency, namely, the higher the early warning level is, the tail lamp flashes faster, and the first, The third colors may be the same as or different from each other, for example, the first color may be the same as the second color and is red, and the third color may be different from the second color and is yellow, and the first color, the second color, and the third color may be composed of two or more colors, respectively. Therefore, according to the emergency degree of emergency braking, the warning information received by the rear vehicle is different, so that the rear vehicle can make more accurate judgment, and the driving safety is improved.
And step 130, controlling the tail lamps of the vehicle to work according to the working parameters so as to send out an emergency braking prompt.
After the working parameters of the vehicle tail lamps are determined, the vehicle controls the corresponding vehicle tail lamps to work according to the determined working parameters, so that an emergency braking prompt corresponding to the current running state is sent to the rear vehicle.
In one embodiment, after the tail lamps of the vehicle are controlled to operate according to the operating parameters to issue the emergency braking prompt, the method of the present application further includes:
acquiring the distance between the rear vehicle and the vehicle in real time;
and when the distance is less than or equal to the preset safety distance, controlling the in-vehicle warning module to send a rear-end collision early warning to the passenger of the vehicle.
After the tail lamp of the vehicle is controlled to work so as to send out an emergency braking prompt to a rear vehicle, the rear vehicle still may cause rear-end collision due to the fact that the speed cannot be reduced to a safe range and the rear vehicle does not decelerate in time, therefore, after the tail lamp of the vehicle is controlled to work, the distance between the rear vehicle and the vehicle is continuously obtained in real time, when the distance is smaller than or equal to a preset safe distance, a warning module in the vehicle is controlled to send out rear-end collision warning to a passenger of the vehicle, and after the passenger of the vehicle sees the rear-end collision warning, the passenger of the vehicle can take corresponding safety measures in time so as to reduce the damage caused by the rear-end collision.
According to the vehicle braking reminding method, when the braking signal is received, whether the braking signal is an emergency braking signal or not is judged, if the braking signal is the emergency braking signal, working parameters of a vehicle tail lamp are determined according to the running state of a rear vehicle relative to the vehicle, wherein the working parameters comprise light flicker frequency and/or light color, and the vehicle tail lamp is controlled to work according to the working parameters so as to send emergency braking reminding. Through this kind of mode, this application can remind in order to avoid knocking into the back car when the vehicle carries out emergency braking to guarantee that the vehicle is gone safely.
FIG. 2 is a block diagram illustrating a vehicle brake reminder apparatus according to an exemplary embodiment. As shown in fig. 2, the vehicle braking reminding device of the present embodiment includes a memory 210 and a processor 220, the memory 210 stores at least one program instruction, and the processor 220 implements the following method by loading and executing the at least one program instruction:
when the braking signal is received, judging whether the braking signal is an emergency braking signal;
if the braking signal is an emergency braking signal, determining working parameters of the tail lamp of the vehicle according to the running state of the rear vehicle relative to the vehicle, wherein the working parameters comprise light flicker frequency and/or light color;
and controlling the tail lamp of the vehicle to work according to the working parameters so as to send out an emergency braking prompt.
In one embodiment, the processor 220 performs the determining whether the braking signal is an emergency braking signal when the braking signal is received, including:
when a braking signal is received, acquiring the opening degree of a brake pedal;
calculating the opening degree change rate of the brake pedal according to the acquired opening degree of the brake pedal;
and if the opening degree change rate is greater than or equal to the preset opening degree change rate, determining that the brake signal is an emergency brake signal.
In one embodiment, the processor 220 performs the determining whether the braking signal is an emergency braking signal when the braking signal is received, including:
when a braking signal is received, acquiring the running speed of the vehicle;
calculating the speed change rate of the vehicle according to the acquired running speed;
and if the speed change rate is greater than or equal to the preset speed change rate, determining that the brake signal is an emergency brake signal.
In one embodiment, the processor 220 executes determining the operation parameters of the taillights of the vehicle according to the driving state of the following vehicle relative to the host vehicle, wherein the operation parameters include light flashing frequency and/or light color, and the method includes:
acquiring the driving state of the rear vehicle relative to the vehicle, wherein the driving state comprises a distance and a relative speed;
determining the warning level of the emergency braking signal according to the driving state;
and determining the working parameters of the tail lamp of the vehicle according to the warning grade, wherein the working parameters comprise the light flashing frequency and/or the light color.
In one embodiment, the processor 220 performs the determining of the warning level of the emergency braking signal according to the driving state, including:
if the relative speed is greater than or equal to the preset relative speed and the distance is less than or equal to the preset distance, determining the warning grade of the emergency braking signal as first-level early warning;
if the relative speed is greater than or equal to the preset relative speed or the distance is less than or equal to the preset distance, determining the warning grade of the emergency braking signal as a secondary early warning;
and if the relative speed is less than the preset relative speed and the distance is greater than the preset distance, determining that the warning grade of the emergency braking signal is three-level early warning.
In one embodiment, processor 220 performs determining an operating parameter of the vehicle tail lights based on the alert level, including:
when the early warning level is primary early warning, acquiring a first working parameter as a working parameter of the vehicle tail lamp, wherein the first working parameter is used for controlling the vehicle tail lamp to flash at a first frequency and display at a first color;
when the early warning level is a secondary early warning level, acquiring a second working parameter as a working parameter of the vehicle tail lamp, wherein the second working parameter is used for controlling the vehicle tail lamp to flash at a second frequency and display at a second color, and the second frequency is smaller than the first frequency;
and when the early warning grade is three-level early warning, acquiring a third working parameter as a working parameter of the vehicle tail lamp, wherein the third working parameter is used for controlling the vehicle tail lamp to flash at a third frequency and display at a third color, and the third frequency is less than the second frequency.
In one embodiment, after the processor 220 executes the operation parameters to control the operation of the tail lights of the vehicle to issue the emergency braking alert, the following steps are further executed:
acquiring the distance between the rear vehicle and the vehicle in real time;
and when the distance is less than or equal to the preset safety distance, controlling the in-vehicle warning module to send a rear-end collision early warning to the passenger of the vehicle.
For the specific working process and steps of the vehicle brake reminding device of this embodiment, please refer to the description of the embodiment shown in fig. 1, which is not repeated herein.
The application also provides a vehicle, which comprises the vehicle brake reminding device.
According to the vehicle brake reminding device and the vehicle, when the brake signal is received, whether the brake signal is an emergency brake signal or not is judged, if the brake signal is the emergency brake signal, working parameters of the vehicle tail lamp are determined according to the running state of the rear vehicle relative to the vehicle, wherein the working parameters comprise light flicker frequency and/or light color, and the vehicle tail lamp is controlled to work according to the working parameters so as to send out emergency brake reminding. Through this kind of mode, this application can remind in order to avoid knocking into the back car when the vehicle carries out emergency braking to guarantee that the vehicle is gone safely.
Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being included within the following description of the preferred embodiment.
Claims (10)
1. A vehicle braking alert method, comprising:
when a braking signal is received, judging whether the braking signal is an emergency braking signal;
if the braking signal is an emergency braking signal, determining working parameters of a tail lamp of the vehicle according to the running state of the rear vehicle relative to the vehicle, wherein the working parameters comprise light flicker frequency and/or light color;
and controlling the vehicle tail lamp to work according to the working parameters so as to send an emergency braking prompt.
2. The vehicle brake reminding method according to claim 1, wherein the determining whether the brake signal is an emergency brake signal when the brake signal is received comprises:
when a braking signal is received, acquiring the opening degree of a brake pedal;
calculating the opening degree change rate of the brake pedal according to the acquired opening degree of the brake pedal;
and if the opening degree change rate is greater than or equal to a preset opening degree change rate, determining that the braking signal is an emergency braking signal.
3. The vehicle brake reminding method according to claim 1, wherein the determining whether the brake signal is an emergency brake signal when the brake signal is received comprises:
when a braking signal is received, acquiring the running speed of the vehicle;
calculating the speed change rate of the vehicle according to the acquired running speed;
and if the speed change rate is greater than or equal to a preset speed change rate, determining that the braking signal is an emergency braking signal.
4. The vehicle brake reminding method according to claim 1, wherein the determining of the working parameters of the vehicle tail lights according to the driving state of the following vehicle relative to the vehicle, the working parameters including light flashing frequency and/or light color, comprises:
acquiring the driving state of a rear vehicle relative to the vehicle, wherein the driving state comprises a distance and a relative speed;
determining the warning level of the emergency braking signal according to the driving state;
and determining working parameters of the tail lamp of the vehicle according to the warning grade, wherein the working parameters comprise light flicker frequency and/or light color.
5. The vehicle braking alert method according to claim 4, wherein the determining the warning level of the emergency braking signal according to the driving status includes:
if the relative speed is greater than or equal to a preset relative speed and the distance is less than or equal to a preset distance, determining that the warning grade of the emergency braking signal is first-level early warning;
if the relative speed is greater than or equal to the preset relative speed or the distance is less than or equal to the preset distance, determining that the warning grade of the emergency braking signal is secondary early warning;
and if the relative speed is less than the preset relative speed and the distance is greater than the preset distance, determining that the warning grade of the emergency braking signal is a third-level early warning.
6. The vehicle brake warning method of claim 5, wherein the determining the operating parameters of the vehicle tail lights according to the warning level comprises:
when the early warning level is primary early warning, acquiring a first working parameter as a working parameter of a vehicle tail lamp, wherein the first working parameter is used for controlling the vehicle tail lamp to flash at a first frequency and display at a first color;
when the early warning level is a secondary early warning level, acquiring a second working parameter as a working parameter of the vehicle tail lamp, wherein the second working parameter is used for controlling the vehicle tail lamp to flash at a second frequency and display at a second color, and the second frequency is smaller than the first frequency;
and when the early warning grade is three-level early warning, acquiring a third working parameter as a working parameter of the vehicle tail lamp, wherein the third working parameter is used for controlling the vehicle tail lamp to flash at a third frequency and display at a third color, and the third frequency is smaller than the second frequency.
7. The vehicle brake warning method according to any one of claims 1 to 6, wherein after the controlling the vehicle tail light to operate according to the operating parameter to issue an emergency brake warning, the method further comprises:
acquiring the distance between the rear vehicle and the vehicle in real time;
and when the distance is smaller than or equal to the preset safety distance, controlling an in-vehicle warning module to send a rear-end collision early warning to the passenger of the vehicle.
8. A vehicle brake warning device, comprising a memory and a processor, wherein the memory stores at least one program instruction, and the processor loads and executes the at least one program instruction to implement the following method:
when a braking signal is received, judging whether the braking signal is an emergency braking signal;
if the braking signal is an emergency braking signal, determining working parameters of a tail lamp of the vehicle according to the running state of the rear vehicle relative to the vehicle, wherein the working parameters comprise light flicker frequency and/or light color;
and controlling the vehicle tail lamp to work according to the working parameters so as to send an emergency braking prompt.
9. The vehicle braking alert device according to claim 8, wherein the processor performs determining an operation parameter of a tail light of the vehicle according to a driving state of the following vehicle relative to the host vehicle, the operation parameter including a light flashing frequency and/or a light color, including:
acquiring the driving state of a rear vehicle relative to the vehicle, wherein the driving state comprises a distance and a relative speed;
determining the warning level of the emergency braking signal according to the driving state;
and determining working parameters of the tail lamp of the vehicle according to the warning grade, wherein the working parameters comprise light flicker frequency and/or light color.
10. A vehicle characterized in that it comprises a vehicle brake reminder device according to claim 8.
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| CN201811127011.0A CN110949241A (en) | 2018-09-26 | 2018-09-26 | Vehicle braking reminding method and device and vehicle |
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| CN201811127011.0A CN110949241A (en) | 2018-09-26 | 2018-09-26 | Vehicle braking reminding method and device and vehicle |
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| US11021117B2 (en) | 2014-11-24 | 2021-06-01 | Ess-Help, Inc. | Enhanced communication system for vehicle hazard lights |
| CN113103952A (en) * | 2021-04-12 | 2021-07-13 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Vehicle lamp control method and device, electronic equipment and storage medium |
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