CN113895352A - Early warning method for vehicle braking - Google Patents
Early warning method for vehicle braking Download PDFInfo
- Publication number
- CN113895352A CN113895352A CN202111134284.XA CN202111134284A CN113895352A CN 113895352 A CN113895352 A CN 113895352A CN 202111134284 A CN202111134284 A CN 202111134284A CN 113895352 A CN113895352 A CN 113895352A
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- vehicle
- controller
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- early warning
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000001960 triggered effect Effects 0.000 claims description 3
- 206010039203 Road traffic accident Diseases 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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Classifications
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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
- B60Q1/442—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 visible on the front side of the vehicle, e.g. for pedestrians
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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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention provides a vehicle braking early warning method, which comprises the following steps: detecting the distance L1 between the foot of the user and the brake pedal; transmitting the distance L1 to the controller and comparing it with the value L2 stored in the controller; if L1 is larger than L2, returning to the first step, and if L1 is smaller than or equal to L2, detecting the distance L3 between the vehicle and the obstacle in front of the vehicle; transmitting the distance L3 to the controller and comparing it with the value L4 stored in the controller; and returning to the first step if L3 is greater than L4, and turning on the brake lamp if L3 is less than or equal to L4. The method can lead the turn-on time of the tail brake lamp to be about 1 second, and the 1 second can avoid many traffic accidents.
Description
Technical Field
The invention relates to the field of vehicle braking, in particular to a vehicle braking early warning method.
Background
When the existing tail brake lamp is lighted, after a driver steps on a brake pedal, even a part of the brake pedal of the vehicle has a virtual position. In the event of a traffic accident, the conventional method causes the brake lights not to be turned on at the first time, and if the condition of turning on the brake lights with delay can be avoided, or the delay can be reduced as much as possible, the probability of the traffic accident is greatly reduced, or even avoided.
Disclosure of Invention
The invention aims to provide a vehicle braking early warning method, which can lead the turn-on time of a tail brake lamp to be about 1 second earlier, and the 1 second can avoid a plurality of traffic accidents.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
according to one aspect of the invention, a vehicle braking early warning method is provided, which comprises the steps of detecting the distance L1 between the foot of a user and a brake pedal; transmitting the distance L1 to the controller and comparing it with the value L2 stored in the controller; if L1 is larger than L2, returning to the first step, and if L1 is smaller than or equal to L2, detecting the distance L3 between the vehicle and the obstacle in front of the vehicle; transmitting the distance L3 to the controller and comparing it with the value L4 stored in the controller; and returning to the first step if L3 is greater than L4, and turning on the brake lamp if L3 is less than or equal to L4.
According to an embodiment of the present invention, the detecting the distance L1 between the foot of the user and the brake pedal includes: when the foot of the user is placed on the upper part of the brake pedal, a distance detector is triggered, by means of which the distance L1 between the foot of the user and the brake pedal is detected.
According to an embodiment of the present invention, the distance detector is an infrared sensor which is mounted on the vehicle body at the upper and side portions of the brake pedal.
According to an embodiment of the present invention, wherein transmitting the distance L1 to the controller and comparing it with the value L2 stored in the controller comprises: the infrared sensor wirelessly transmits the measured value of the distance L1 to the controller and compares it with a value L2 previously stored in the controller to determine the magnitude relationship between the two.
According to an embodiment of the present invention, the value L2 ranges from 2 to 4 cm.
According to an embodiment of the present invention, wherein returning to the first step if L1 is greater than L2 and detecting the distance L3 between the vehicle and the obstacle in front of the vehicle if L1 is equal to or less than L2 includes: the controller continuously receives and compares data transmitted by the infrared sensor, when the controller compares that L1 is larger than L2, the steps are repeated until the controller sends out a control command to instruct the sensor outside the vehicle to detect the distance L3 between the vehicle and the obstacle in the front of the vehicle when L1 is smaller than or equal to L2.
According to an embodiment of the present invention, wherein transmitting the distance L3 to the controller and comparing it with the value L4 stored in the controller comprises: the off-board sensor wirelessly transmits the measured distance value L3 to the controller and compares it with a value L4 pre-stored in the controller to determine the magnitude relationship between the two.
According to an embodiment of the present invention, the value L4 is in the range of 30 to 120 m.
According to one embodiment of the invention, the off-board sensor is a millimeter wave radar sensor, and the millimeter wave radar sensor is arranged on the front side of the head of the vehicle.
According to an embodiment of the present invention, wherein the returning to the first step if L3 is greater than L4 and the turning on the brake light if L3 is equal to or less than L4 comprises: the controller continuously receives and compares data transmitted by the millimeter wave radar sensor, when the comparison result of the controller shows that L3 is larger than L4, the steps are repeated until the controller sends out a control command to indicate that a brake lamp is lightened when L3 is smaller than or equal to L4.
One embodiment of the present invention has the following advantages or benefits:
the vehicle braking early warning method of the invention adopts a sensor detection mode, and lights a vehicle tail brake lamp in time by comparing whether an obstacle exists before a driver's foot is about to step on a brake pedal or when the braking intention is determined so as to remind the driver of the attention of a following vehicle.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 is a schematic diagram illustrating a vehicle early warning method of braking according to an exemplary embodiment.
FIG. 2 is a schematic diagram illustrating an in-vehicle pedal detection system collecting data to detect pedal intent, according to an exemplary embodiment.
Fig. 3 is a schematic diagram illustrating obstacle data collected by a millimeter wave radar in front of a vehicle head according to an exemplary embodiment.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
The terms "a," "an," "the," "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
As shown in fig. 1 to 3, fig. 1 is a schematic diagram illustrating a vehicle braking early warning method according to the present invention. FIG. 2 is a schematic diagram illustrating the purpose of detecting a pedal by collecting data of an in-vehicle pedal detection system provided by the invention. Fig. 3 shows a schematic diagram of obstacle data collected by a millimeter wave radar in the front of a vehicle head.
The vehicle braking early warning method comprises the steps of detecting the distance L1 between the foot of a user and a brake pedal; transmitting the distance L1 to the controller and comparing it with a value L2 stored in the controller; if L1 is larger than L2, returning to the first step, and if L1 is smaller than or equal to L2, detecting the distance L3 between the vehicle and the obstacle in front of the vehicle; transmitting the distance L3 to the controller and comparing it with a value L4 stored in the controller; and returning to the first step if L3 is greater than L4, and turning on the brake lamp if L3 is less than or equal to L4.
When the braking time is selected, the user does not need to contact the pedal to start braking until the braking is considered to be started, and the user should remind the following vehicle when the braking is started, namely, the rear brake lamp is lightened. At this time, the distance L1 between the user's foot and the brake pedal is detected in real time by the sensor. This distance L1 is compared with an internal set distance L2 between the user's foot and the brake pedal stored in the vehicle controller to determine whether or not vehicle front obstacle detection is required. If necessary, the distance L3 between the front obstacle and the vehicle head is detected through the vehicle exterior sensor at the front part of the vehicle head, then the signal is fed back and compared with the vehicle front obstacle and the vehicle head internal fixed distance L4 stored in the controller, and therefore whether the brake lamp needs to be turned on or not is determined. The method can realize early warning of braking by turning on the brake lamp in advance only by judging two data of braking intention and distance between the vehicle and the obstacle without stepping on the brake.
In a preferred embodiment of the present invention, detecting the distance L1 between the user's foot and the brake pedal comprises: when the foot of the user is placed on the upper part of the brake pedal, the distance detector is triggered, and the distance L1 between the foot of the user and the brake pedal is detected by the distance detector. The distance detector is an infrared sensor which is arranged on the upper part and the side part of the brake pedal on the vehicle body.
As shown in fig. 1 to 3, the infrared sensor is placed on the vehicle body around the brake pedal. No obstacle is arranged between the infrared sensor and the brake pedal, so that the distance between the foot of a user placed on the brake pedal and the brake pedal can be accurately measured.
In a preferred embodiment of the present invention, transmitting the distance L1 to the controller and comparing it to the value L2 stored in the controller comprises: the infrared sensor wirelessly transmits the measured value of the distance L1 to the controller and compares it with a value L2 previously stored in the controller to determine the magnitude relationship between the two. Wherein L2 ranges from 2 to 4cm, preferably 3 cm.
As shown in fig. 1, a memory, a comparator and a processor are provided in the controller. The memory is used for storing data, and the comparator can call the data in the memory for comparison and feed back a comparison result to the processor to send out a control instruction.
In a preferred embodiment of the present invention, returning to the first step if L1 is greater than L2, and detecting the distance L3 between the vehicle and the obstacle in front of the vehicle if L1 is equal to or less than L2 includes: the controller continuously receives the data transmitted by the infrared sensor for comparison, when the controller compares that L1 is larger than L2, the steps are repeated until the controller sends out a control command to instruct the sensor outside the vehicle to detect the distance L3 between the vehicle and the obstacle in front of the vehicle when L1 is smaller than or equal to L2.
As shown in fig. 1, the data transmission of the infrared sensor is continuously performed, and thus the controller continuously receives the signal. And then compared to internally stored data. The above steps are repeated until a result that L1 is equal to or less than L2 is obtained, and then the next step of starting to measure the distance L3 between the vehicle and the obstacle in front of the vehicle is started.
In a preferred embodiment of the present invention, transmitting the distance L3 to the controller and comparing it to the value L4 stored in the controller comprises: the off-board sensor wirelessly transmits the measured distance value L3 to the controller and compares it with a value L4 previously stored in the controller to determine the magnitude relationship between the two. The sensor outside the vehicle is a millimeter wave radar sensor which is arranged on the front side of the head of the vehicle.
As shown in fig. 1, this step is also a comparison process of detecting a distance L3 between the vehicle and an obstacle in front of the vehicle by the millimeter wave radar sensor. The size relationship between L3 and L4 was found. Wherein L4 ranges from 30 to 120m, preferably 65 m.
In a preferred embodiment of the present invention, returning to the first step if L3 is greater than L4, and turning on the brake light if L3 is equal to or less than L4 includes: the controller continuously receives the data transmitted by the millimeter wave radar sensor for comparison, when the comparison of the controller shows that L3 is larger than L4, the steps are repeated until the controller sends out a control command to indicate that the brake lamp is lightened when L3 is smaller than or equal to L4.
As shown in fig. 1 and 3, the detection of the millimeter wave radar sensor is also continuously performed, and the controller also continuously receives the signal. The controller continues to compare the magnitudes of L3 and L4 until L3 is less than or equal to L4, indicating that the brake lights are on, ending the step.
According to the vehicle braking early warning method provided by the embodiment of the invention, an in-vehicle sensor and an out-vehicle sensor are matched for detection, and when a driver's foot is about to step on a brake pedal or the braking intention is determined, a brake lamp at the tail of a vehicle is timely lightened by comparing whether an obstacle exists or not so as to remind the driver of the attention of a following vehicle. The method can lead the turn-on time of the tail brake lamp to be about 1 second, and the 1 second can avoid the occurrence of a plurality of traffic accidents.
In embodiments of the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present invention.
In the description herein, the appearances of the phrase "one embodiment," "a preferred embodiment," or the like, are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present embodiment by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.
Claims (10)
1. A vehicle braking early warning method is characterized by comprising the following steps:
detecting the distance L1 between the foot of the user and the brake pedal;
transmitting the distance L1 to the controller and comparing it with a value L2 stored in the controller;
if L1 is larger than L2, returning to the first step, and if L1 is smaller than or equal to L2, detecting the distance L3 between the vehicle and the obstacle in front of the vehicle;
transmitting the distance L3 to the controller and comparing it with a value L4 stored in the controller; and
if L3 is larger than L4, the process returns to the first step, and if L3 is less than or equal to L4, the brake lamp is turned on.
2. The vehicle braking early warning method according to claim 1, wherein detecting the distance L1 between the foot of the user and the brake pedal comprises: when the foot of the user is placed on the upper part of the brake pedal, a distance detector is triggered, by means of which the distance L1 between the foot of the user and the brake pedal is detected.
3. The vehicle brake early warning method according to claim 2, wherein the distance detector is an infrared sensor which is mounted on the vehicle body at the upper and side portions of the brake pedal.
4. The vehicle early warning method of braking according to claim 3, wherein transmitting the distance L1 to a controller and comparing it with a value L2 stored in the controller comprises: the infrared sensor wirelessly transmits the measured value of the distance L1 to the controller and compares it with a value L2 previously stored in the controller to determine the magnitude relationship between the two.
5. The vehicle braking early warning method according to claim 4, wherein the value L2 ranges from 2 to 4 cm.
6. The vehicle braking early warning method according to claim 5, wherein returning to the first step if L1 is greater than L2, and detecting the distance L3 between the vehicle and the obstacle in front of the vehicle if L1 is equal to or less than L2 comprises: the controller continuously receives and compares data transmitted by the infrared sensor, when the controller compares that L1 is larger than L2, the steps are repeated until the controller sends out a control command to instruct the sensor outside the vehicle to detect the distance L3 between the vehicle and the obstacle in the front of the vehicle when L1 is smaller than or equal to L2.
7. The vehicle early warning method of braking according to claim 6, wherein transmitting the distance L3 to a controller and comparing it with a value L4 stored in the controller comprises: the off-board sensor wirelessly transmits the measured distance value L3 to the controller and compares it with a value L4 pre-stored in the controller to determine the magnitude relationship between the two.
8. The vehicle braking early warning method according to claim 7, wherein the value L4 ranges from 30 to 120 m.
9. The vehicle braking early warning method according to claim 7, wherein the sensor outside the vehicle is a millimeter wave radar sensor, and the millimeter wave radar sensor is arranged on the front side of the vehicle head of the vehicle.
10. The vehicle braking early warning method according to claim 9, wherein returning to the first step if L3 is greater than L4 and turning on the brake light if L3 is equal to or less than L4 comprises: the controller continuously receives and compares data transmitted by the millimeter wave radar sensor, when the comparison result of the controller shows that L3 is larger than L4, the steps are repeated until the controller sends out a control command to indicate that a brake lamp is lightened when L3 is smaller than or equal to L4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111134284.XA CN113895352A (en) | 2021-09-27 | 2021-09-27 | Early warning method for vehicle braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111134284.XA CN113895352A (en) | 2021-09-27 | 2021-09-27 | Early warning method for vehicle braking |
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| Publication Number | Publication Date |
|---|---|
| CN113895352A true CN113895352A (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111134284.XA Pending CN113895352A (en) | 2021-09-27 | 2021-09-27 | Early warning method for vehicle braking |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015655A (en) * | 2014-05-29 | 2014-09-03 | 北京恒华伟业科技股份有限公司 | Vehicle braking pre-warning system and method |
| CN106274654A (en) * | 2015-05-15 | 2017-01-04 | 展晶科技(深圳)有限公司 | Brake warning lamp |
| CN209972303U (en) * | 2019-02-20 | 2020-01-21 | 上汽通用汽车有限公司 | Vehicle brake lamp control device and system and vehicle with device or system |
-
2021
- 2021-09-27 CN CN202111134284.XA patent/CN113895352A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015655A (en) * | 2014-05-29 | 2014-09-03 | 北京恒华伟业科技股份有限公司 | Vehicle braking pre-warning system and method |
| CN106274654A (en) * | 2015-05-15 | 2017-01-04 | 展晶科技(深圳)有限公司 | Brake warning lamp |
| CN209972303U (en) * | 2019-02-20 | 2020-01-21 | 上汽通用汽车有限公司 | Vehicle brake lamp control device and system and vehicle with device or system |
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Application publication date: 20220107 |