Vehicle rear-end collision prevention prompting method and system and vehicle

Abstract

The invention provides a vehicle rear-end collision prevention prompting method and system and a vehicle. The method comprises the steps that the actual vehicle speed of a current vehicle is obtained; acquiring a real-time vehicle distance between the current vehicle and an adjacent front vehicle on the same lane; and based on the actual vehicle speed of the current vehicle and the real-time vehicle distance between the current vehicle and the vehicle in front of the current vehicle, a display device located behind the current vehicle is controlled to carry out corresponding dynamic display so as to carry out a corresponding prompt effect on the rear vehicle. According to the method, the rear vehicle can be reminded of the change of the safety clearance between the current vehicle and the front vehicle, the pre-judgment time is reserved for braking of the rear vehicle, and the driving nervous mood is relieved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of automobiles, and in particular, to a method, a system and a vehicle for preventing rear-end collisions of vehicles. Background Art

[0002] When a vehicle is traveling on the road, there will always be situations where the traffic flow is very large. When following a vehicle, in order to maintain a safe gap, usually the driver will always pay attention to whether the brake lights of the vehicle in front are on to decide whether to step on the brake to prevent rear-end collisions. However, everyone's grasp of the safe gap from the vehicle in front and the braking reaction are inconsistent. Some people will overreact and step on the brake hurriedly as soon as they see the brake lights of the vehicle in front light up; while some people will subjectively feel that the distance from the vehicle in front has become close and start stepping on the brake with a high frequency. This is likely to cause the driver of the vehicle behind to be nervous, thus maintaining a long safe gap, but it is also easy for the vehicle next to it to cut in. Moreover, especially when there is an emergency braking situation during high-speed driving, when the vehicle behind sees the color change of the brake lights of the vehicle in front, it may be too late to step on the brake, thus easily causing rear-end collision accidents. Therefore, this method relying on the color change of the brake lights of the vehicle in front cannot play a good early warning role for the vehicle behind in practice. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a method, a system and a vehicle for preventing rear-end collisions of vehicles, which can solve at least one technical problem mentioned in the prior art.

[0004] One aspect of the embodiments of the present application provides a method for preventing rear-end collisions of vehicles. The method includes: obtaining the actual speed of the current vehicle; obtaining the real-time vehicle distance between the current vehicle and the vehicle in front of it in the same lane; and based on the actual speed of the current vehicle and the real-time vehicle distance from the vehicle in front of it, controlling a display device located behind the current vehicle to perform corresponding dynamic displays to give corresponding prompts to the vehicle behind.

[0005] Further, the method further includes: presetting the vehicle speed in multiple gears; and setting the corresponding safe distance for the vehicle according to the vehicle speed of each gear, wherein the controlling the display device located behind the current vehicle to perform corresponding dynamic displays based on the actual speed of the current vehicle and the actual vehicle distance from the vehicle in front of it includes: controlling the display device to perform different dynamic displays respectively according to the size of the safe distance corresponding to the real-time vehicle distance from the vehicle in front of it with respect to the actual speed of the current vehicle.

[0006] Further, the display device includes a plurality of display lights, and the plurality of display lights form a progress bar for indicating the level of warning. Controlling the display device to perform different dynamic displays respectively includes: controlling different numbers of the display lights to be lit to dynamically display different progress. Among them, the smaller the real-time vehicle distance is relative to the safe distance corresponding to the actual speed of the current vehicle, the more display lights are controlled to be lit.

[0007] Further, controlling the display device to perform different dynamic displays respectively further includes: controlling the display lights to dynamically display different colors according to the progress size on the progress bar.

[0008] Further, the method further includes: pre-dividing the entire progress bar into a first progress interval, a second progress interval, and a third progress interval in sequence according to size. The display lights in the first progress interval, the second progress interval, and the third progress interval respectively correspond to displaying green, yellow, and red. Among them, controlling the display lights to dynamically display different colors includes: when the progress on the progress bar is in the first progress interval, controlling the display lights in the first progress interval to display green; when the progress on the progress bar reaches the second progress interval, further controlling the display lights in the second progress interval to display yellow; when the progress on the progress bar reaches the third progress interval, further controlling the display lights in the third progress interval to display red; and when the real-time vehicle distance exceeds the limit of the safe distance corresponding to the actual speed of the current vehicle, controlling all the display lights forming the progress bar to be lit and flash.

[0009] Another aspect of the embodiments of the present application provides a vehicle anti-rear-end collision prompt system. The device includes a vehicle speed acquisition device, a vehicle distance detector, a display device, and a control device. The vehicle speed acquisition device is used to acquire the actual speed of the current vehicle. The vehicle distance detector is arranged in front of the current vehicle and is used to acquire the real-time vehicle distance between the current vehicle and the vehicle in the same lane adjacent to it in front. The display device is arranged behind the current vehicle. The control device is used to control the display device to perform corresponding dynamic displays based on the actual speed of the current vehicle and the real-time vehicle distance from the vehicle in front of it, so as to play a corresponding prompting role for the vehicle behind.

[0010] Further, the control device stores the safe distance of the vehicle corresponding to each gear of vehicle speed, and the control device is used to control the display device to perform different dynamic displays respectively according to the size of the real-time vehicle distance from the vehicle in front relative to the safe distance corresponding to the actual speed of the current vehicle.

[0011] Further, the display device includes a plurality of display lights, and the plurality of display lights form a progress bar for indicating the degree of danger. The control device is configured to control different numbers of the display lights to be lit according to the size of the real-time vehicle distance from the vehicle ahead relative to the safety distance corresponding to the actual vehicle speed of the current vehicle, so as to dynamically display different progress. Among them, the closer the real-time vehicle distance is to the safety distance corresponding to the actual vehicle speed of the current vehicle, the more display lights the control device controls to be lit.

[0012] Further, the control device is further configured to control the display lights on the progress bar to dynamically display different colors according to the progress size on the progress bar.

[0013] Another aspect of the embodiments of the present application provides a vehicle. The vehicle includes the vehicle anti-rear-end collision prompting system as described above.

[0014] The vehicle anti-rear-end collision prompting method, its system and vehicle according to one or more embodiments of the present application can display the change of the safety gap between the current vehicle and the vehicle ahead adjacent in the same lane in real time, and transmit the safety gap with the vehicle ahead to the vehicle behind in real time, giving a corresponding reminder to the vehicle behind, so as to leave a braking prediction time for the driver of the vehicle behind. Thus, the driving tension can be relieved, and further, the occurrence of vehicle rear-end collision accidents can be prevented.

[0015] The vehicle anti-rear-end collision prompting method, its system and vehicle according to one or more embodiments of the present application can, without changing the vehicle brake lights, enable the vehicle behind to know the safety gap between the current vehicle and the vehicle ahead in real time when the vehicle does not brake, so that the vehicle behind can make a prediction in advance and prevent sudden braking from causing a rear-end collision. Description of the Drawings

[0016] Figure 1 It is a flowchart of the vehicle anti-rear-end collision prompting method according to an embodiment of the present application.

[0017] Figure 2 It is a schematic diagram of the installation position of the vehicle distance detector according to an embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of the display device according to an embodiment of the present application.

[0019] Figure 4 It is a schematic block diagram of the vehicle anti-rear-end collision prompting system according to an embodiment of the present application. Detailed Description of the Embodiments

[0020] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0021] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the ordinary meaning understood by those of ordinary skill in the art to which the present application pertains. The terms "first", "second" and similar words used in the specification and claims of the present application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. "Plurality" or "several" means two or more. Unless otherwise indicated, words such as "front", "rear", "lower" and / or "upper" are for convenience of description only and are not limited to one position or a spatial orientation. The words such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The words such as "connected" or "coupled" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "the" and "said" used in the specification and appended claims of the present application are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term " / and" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0022] The present application provides a method for prompting vehicle anti-rear-end collision. Figure 1 The flowchart of the method for prompting vehicle anti-rear-end collision according to an embodiment of the present application is disclosed. As Figure 1 shown, the method for prompting vehicle anti-rear-end collision according to an embodiment of the present application may include steps S1 to S3.

[0023] In step S1, the actual vehicle speed of the current vehicle is obtained.

[0024] In step S2, the real-time vehicle distance between the current vehicle and the adjacent vehicle in front of it in the same lane is obtained.

[0025] As Figure 2As shown, in one embodiment, the real-time distance between the current vehicle and the vehicle in front of it can be obtained by the distance detector 102 installed in front of the current vehicle. The distance detector 102 can include, for example, a radar detector, etc.

[0026] In step S3, based on the actual speed of the current vehicle and the real-time distance from the vehicle in front of it, the display device located behind the current vehicle is controlled to perform corresponding dynamic displays to give corresponding prompts to the vehicles behind.

[0027] In some embodiments, the vehicle anti-rear-end collision prompting method of the present application may further include: presetting the vehicle speed to multiple gears; and setting the corresponding safe distance for the vehicle according to the speed of each gear.

[0028] In this case, step S3 may include step S31. In step S31, the display device can be controlled to perform different dynamic displays according to the size of the real-time distance from the vehicle in front relative to the safe distance corresponding to the actual speed of the current vehicle, so as to play a corresponding early warning role for the vehicles behind.

[0029] Figure 3 The schematic diagram of the display device 104 according to an embodiment of the present application is disclosed. As Figure 3 shown, in some embodiments, the display device 104 installed behind the current vehicle may include a plurality of display lights, and the plurality of display lights can form a progress bar for indicating the level of warning.

[0030] Among them, the control of the display device to perform different dynamic displays in step S31 may include step S311. In step S311, different numbers of display lights can be controlled to light up to dynamically display different progress levels. Among them, the smaller the real-time distance is relative to the safe distance corresponding to the actual speed of the current vehicle, the more display lights are controlled to light up, and the greater the progress displayed on the progress bar.

[0031] In some embodiments, the control of the display device to perform different dynamic displays in step S31 may further include step S312. In step S312, the display lights can be controlled to dynamically display different colors according to the size of the progress on the progress bar.

[0032] Combined with reference to Figure 3 shown, in some embodiments, the vehicle anti-rear-end collision prompting method of the present application may further include: presetting the entire progress bar to be divided into a first progress interval 1041, a second progress interval 1042, and a third progress interval 1043 in sequence according to size, and the display lights in the first progress interval 1041, the second progress interval 1042, and the third progress interval 1043 respectively display green, yellow, and red.

[0033] In some embodiments, step S312 may further include steps S3121 to S3123. In step S3121, when the progress on the progress bar is within the first progress interval 1041, the display lights within the first progress interval 1041 may be controlled to display green to prompt the following vehicle that the distance between the current vehicle and the vehicle in front is relatively safe. Moreover, the size of the distance between the current vehicle and the vehicle in front may be represented in real time according to the size of the progress at which the green light turns on.

[0034] In step S3122, when the progress on the progress bar reaches the second progress interval 1042, on the basis of controlling the display lights within the first progress interval 1041 to display green, the display lights within the second progress interval 1042 may be further controlled to display yellow. At this time, the display colors of the display lights on the progress bar successively include several green lights and at least one yellow light, to prompt the following vehicle that there may be a potential safety hazard in the distance between the current vehicle and the vehicle in front, to give an early warning to the following vehicle, and to remind the driver of the following vehicle to be more vigilant and pay attention to safety. Moreover, the size of the distance between the current vehicle and the vehicle in front may be represented in real time according to the size of the progress at which the yellow light turns on.

[0035] In step S3123, when the progress on the progress bar reaches the third progress interval 1043, on the basis of controlling the display lights within the first progress interval 1041 to display green and the display lights within the second progress interval 1042 to display yellow, the display lights within the third progress interval 1043 may be further controlled to display red. At this time, the display colors of the display lights on the progress bar successively include several green lights, several yellow lights and at least one red light, to prompt the following vehicle that there is already a relatively large safety hazard in the distance between the current vehicle and the vehicle in front. Thus, without the current vehicle stepping on the brake, an early warning can be given to the following vehicle, enabling the following vehicle to make a prediction in advance and perform a braking action in advance, and further preventing a rear-end collision caused by the current vehicle suddenly braking and the following vehicle not having enough time to brake. Moreover, the size of the distance between the current vehicle and the vehicle in front may be represented in real time according to the size of the progress at which the red light turns on. The greater the progress at which the red light turns on, the higher the degree of danger.

[0036] In some embodiments, step S312 may further include step S3124. In step S3124, when the real-time vehicle distance exceeds the limit of the safety distance corresponding to the actual speed of the current vehicle, all the display lights forming the progress bar may be controlled to light up and flash to give the maximum warning prompt to the following vehicle.

[0037] The vehicle anti-rear-end collision prompting method of the present application can display in real time the change in the safety gap between the current vehicle and the adjacent vehicle in front on the same lane, and transmit the safety gap with the vehicle in front to the vehicle behind in real time, giving a corresponding reminder to the vehicle behind, so as to leave the driver of the vehicle behind with time for braking prediction. Thus, it can relieve the driving tension and prevent the occurrence of vehicle rear-end collision accidents.

[0038] The vehicle anti-rear-end collision prompting method of the present application can, without changing the vehicle brake lights and without the vehicle braking, enable the vehicle behind to know in real time the safety gap between the current vehicle and the vehicle in front, so that the vehicle behind can make a prediction in advance and prevent sudden braking.

[0039] The present application also provides a vehicle anti-rear-end collision prompting system. Figure 4 The schematic block diagram of the vehicle anti-rear-end collision prompting system 100 according to an embodiment of the present application is disclosed. As Figure 4 shown, the vehicle anti-rear-end collision prompting system 100 according to an embodiment of the present application includes a vehicle speed acquisition device 101, a vehicle distance detector 102, a display device 104 and a control device 103. The vehicle speed acquisition device 101 can be used to acquire the actual vehicle speed of the current vehicle.

[0040] The vehicle distance detector 102 can be used to acquire the real-time vehicle distance between the current vehicle and the adjacent vehicle in front on the same lane. The vehicle distance detector 102 can include, for example, a radar detector, etc. The vehicle distance detector 102 is arranged in front of the current vehicle. As Figure 2 shown, the vehicle distance detector 102 can be arranged, for example, at a position on the vehicle front windshield near the interior rearview mirror. Of course, it can be understood that the vehicle distance detector 102 of the present application is not limited to Figure 2 the shown arrangement position, and the vehicle distance detector 102 can also be arranged at other positions in front of the vehicle.

[0041] The display device 104 is arranged behind the current vehicle. As Figure 3 shown, the display device 104 can be arranged at a position below the vehicle trunk lid. Of course, it can be understood that the display device 104 of the present application is not limited to Figure 3 the shown arrangement position, and the display device 104 can also be arranged at other positions behind the vehicle that are easily observable by the vehicle behind.

[0042] The control device 103 can, based on the actual vehicle speed of the current vehicle and the real-time vehicle distance from the vehicle in front, control the display device 104 to perform corresponding dynamic display to give a corresponding prompting effect to the vehicle behind.

[0043] In some embodiments, the control device 103 stores the safety distance of the vehicle corresponding to the vehicle speed of each gear. The control device 103 can control the display device 104 to perform different dynamic displays according to the size of the real-time distance from the vehicle ahead relative to the safety distance corresponding to the actual vehicle speed of the current vehicle.

[0044] As Figure 4 shown, in some embodiments, the display device 104 provided at the rear of the vehicle may include a plurality of display lights. The plurality of display lights are arranged in a row, and the plurality of display lights form a progress bar for indicating the degree of danger. The control device 103 can control different numbers of display lights to light up to dynamically display different progress according to the size of the real-time distance from the vehicle ahead relative to the safety distance corresponding to the actual vehicle speed of the current vehicle. Among them, the smaller the safety distance corresponding to the real-time distance from the vehicle ahead relative to the actual vehicle speed of the current vehicle, the more display lights the control device 103 controls to light up, and the greater the progress displayed on the progress bar.

[0045] In some embodiments, the control device 103 can also control the display lights on the progress bar to dynamically display different colors according to the size of the progress on the progress bar.

[0046] For example, the entire progress bar can be divided into a first progress interval 1041, a second progress interval 1042, and a third progress interval 1043 in sequence according to size. The display lights in the first progress interval 1041, the second progress interval 1042, and the third progress interval 1043 respectively correspond to displaying green, yellow, and red.

[0047] For example, when the progress on the progress bar is in the first progress interval 1041, the control device 103 can control the display lights in the first progress interval 1041 to display green to prompt the vehicle behind that the distance of the current vehicle is relatively safe. And the size of the distance between the current vehicle and the vehicle ahead can be represented in real time according to the size of the progress of the green light.

[0048] When the progress on the progress bar reaches the second progress interval 1042, on the basis of the control device 103 controlling the display lights in the first progress interval 1041 of the progress bar to display green, it can further control the display lights in the second progress interval 1042 to display yellow. At this time, the display colors of the display lights on the progress bar sequentially include several green lights and at least one yellow light to prompt the vehicle behind that there may be a safety hazard in the distance of the current vehicle, give an early warning to the vehicle behind, and remind the driver of the vehicle behind to be vigilant and pay attention to safety. And the size of the distance between the current vehicle and the vehicle ahead can be represented in real time according to the size of the progress of the yellow light.

[0049] When the progress on the progress bar reaches the third progress interval 1043, on the basis that the control device 103 controls the display lights in the first progress interval 1041 of the progress bar to display green and the display lights in the second progress interval 1042 to display yellow, it can further control the display lights located in the third progress interval 1043 to display red. At this time, the display colors of the display lights on the progress bar successively include several green lights, several yellow lights and at least one red light, so as to prompt the following vehicle that there is a relatively large potential safety hazard in the vehicle distance of the current vehicle. Thus, without the current vehicle stepping on the brake, an early warning can be given to the following vehicle, enabling the following vehicle to make a pre-judgment in advance and perform a braking action in advance, and further preventing a rear-end collision accident caused by the current vehicle suddenly braking and the following vehicle not having enough time to brake. Moreover, the size of the vehicle distance between the current vehicle and the vehicle in front can be represented in real time according to the progress of the red light lighting up. The greater the progress of the red light lighting up, the higher the degree of danger.

[0050] When the real-time vehicle distance exceeds the limit of the safety distance corresponding to the actual vehicle speed of the current vehicle, the control device 103 can control all the display lights constituting the progress bar to be fully lit and flash, so as to give the maximum warning prompt to the following vehicle.

[0051] The vehicle anti-rear-end collision prompt system 100 of the present application has beneficial technical effects generally similar to those of the above-mentioned vehicle anti-rear-end collision prompt method. Therefore, it will not be elaborated here.

[0052] The present application also provides a vehicle. The vehicle includes the vehicle anti-rear-end collision prompt system 100 described in each of the above embodiments.

[0053] The vehicle anti-rear-end collision prompt method, its system and vehicle provided by the embodiments of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the vehicle anti-rear-end collision prompt method, its system and vehicle of the embodiments of the present application. The description of the above embodiments is only used to help understand the core idea of the present application and is not intended to limit the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the spirit and principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications should also fall within the protection scope of the appended claims of the present application.

Claims

1. A method for prompting vehicle anti-rear-end collision, characterized in that: It includes: Obtain the actual vehicle speed of the current vehicle; Obtain the real-time vehicle distance between the current vehicle and the vehicle in front of it in the same lane; And Based on the actual vehicle speed of the current vehicle and the real-time vehicle distance from the vehicle in front of it, control the display device located behind the current vehicle to perform corresponding dynamic displays, so as to give corresponding prompts to the vehicles behind.

2. The method according to claim 1, characterized in that: It further includes: Pre-set the vehicle speed in multiple gears; Set the corresponding safe distance for the vehicle according to the vehicle speed of each gear, wherein, the control of the display device located behind the current vehicle to perform corresponding dynamic displays based on the actual vehicle speed of the current vehicle and the actual vehicle distance from the vehicle in front of it includes: Control the display device to perform different dynamic displays respectively according to the size of the real-time vehicle distance from the vehicle in front of it relative to the safe distance corresponding to the actual vehicle speed of the current vehicle.

3. The method according to claim 2, characterized in that: The display device includes a plurality of display lights, and the plurality of display lights form a progress bar for indicating the level of warning. The control of the display device to perform different dynamic displays respectively includes: Control different numbers of the display lights to light up to dynamically display different progress, wherein, the smaller the real-time vehicle distance is relative to the safe distance corresponding to the actual vehicle speed of the current vehicle, the more display lights are controlled to light up.

4. The method according to claim 3, characterized in that: The control of the display device to perform different dynamic displays respectively further includes: Control the display lights to dynamically display different colors according to the progress size on the progress bar.

5. The method according to claim 4, characterized in that: It further includes: Pre-divide the entire progress bar into a first progress interval, a second progress interval and a third progress interval in sequence according to size. The display lights in the first progress interval, the second progress interval and the third progress interval respectively correspond to green, yellow and red displays, wherein, the control of the display lights to dynamically display different colors includes: When the progress on the progress bar is in the first progress interval, control the display lights in the first progress interval to display green; When the progress on the progress bar reaches the second progress interval, also control the display lights in the second progress interval to display yellow; When the progress on the progress bar reaches the third progress interval, also control the display lights in the third progress interval to display red; and When the real-time vehicle distance exceeds the limit of the safe distance corresponding to the actual vehicle speed of the current vehicle, control all the display lights forming the progress bar to light up and flash.

6. A vehicle anti-rear-end collision prompting system, characterized in that: It includes: A vehicle speed acquisition device for acquiring the actual vehicle speed of the current vehicle; A vehicle distance detector arranged in front of the current vehicle for acquiring the real-time vehicle distance between the current vehicle and the vehicle in front of it in the same lane; A display device arranged behind the current vehicle; And A control device is configured to control the display device to perform corresponding dynamic displays based on the actual vehicle speed of the current vehicle and the real-time vehicle distance from the vehicle ahead, so as to provide corresponding prompts to the vehicle behind.

7. The system according to claim 6, wherein: The control device stores the safety distance corresponding to the vehicle speed of each gear. The control device is configured to control the display device to perform different dynamic displays respectively according to the size of the real-time vehicle distance from the vehicle ahead relative to the safety distance corresponding to the actual vehicle speed of the current vehicle.

8. The system according to claim 7, wherein: The display device includes a plurality of display lights. The plurality of display lights form a progress bar for indicating the degree of danger. The control device is configured to control different numbers of the display lights to light up to dynamically display different progress according to the size of the real-time vehicle distance from the vehicle ahead relative to the safety distance corresponding to the actual vehicle speed of the current vehicle, wherein, the smaller the real-time vehicle distance is relative to the safety distance corresponding to the actual vehicle speed of the current vehicle, the more display lights the control device controls to light up.

9. The system according to claim 8, wherein: The control device is further configured to control the display lights on the progress bar to dynamically display different colors according to the progress size on the progress bar.

10. A vehicle, wherein: It includes a vehicle anti-rear-end collision prompt system according to any one of claims 6 to 9.

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