Brake pre-reminding response device

Abstract

The utility model provides a brake pre-reminding response device which comprises a vehicle controller, a brake lamp, a first laser distance measuring sensor and a second laser distance measuring sensor, and the first laser distance measuring sensor is installed at the position where the right foot of a driver can be detected to move from an accelerator to a brake. The second laser distance measuring sensor is installed at the position where the brake can move up and down, the first laser distance measuring sensor and the second laser distance measuring sensor are connected with a vehicle controller through wires, and the vehicle controller is connected with a brake lamp through a wire. According to the utility model, the brake lamp lighting principle in daily safety is not changed, and only when a user has a brake stepping idea and action and a rear vehicle has an accident risk to the user, the brake lamp is turned on in time at the beginning of a brake process, so that the problem that the response time of a driver of the rear vehicle is too short is solved, the operable time of the driver of the rear vehicle is prolonged, and the risk is reduced; part of traffic accidents are avoided, and the driving environment of a user is safer.

Description

Technical Field

[0001] The utility model relates to the field of vehicle braking, in particular to a brake pre-warning response device. Background Art

[0002] The complete braking process is that the right foot leaves the accelerator and moves toward the brake, then the brake is stepped on, and the brake light turns on. In the device made based on the brake pre-warning response method, the brake light will turn on in time when the right foot leaves the accelerator and moves toward the brake, so that the brake light can work in time at the beginning of the braking process, respond in time, and avoid false alarms, thereby improving the reaction time of the driver of the following vehicle and reducing traffic accidents. The existing "Vehicle Braking Early Warning Method" and "Vehicle Braking Early Warning Method" have many design defects: (1) There is no function to detect the movement state of the foot, but a simple comparison is made through the distance of two or more sensors, which requires multiple numerical comparisons, but when one of the numerical values, such as the front The lack of obstacle distance, for example, when there is a big pit ahead and you need to brake, the sensor cannot be triggered because there is no obstacle ahead, and the pre-warning function will be completely ineffective; (2) There is no distance anti-shake function. General distance sensors will have unavoidable numerical jitter changes. Once the data detected by their sensors fluctuates, the brake lights will flash at high speed; (3) Adding 2 or more sensors will increase the possibility of failure. Since their logic needs to compare each value, if one of the sensor values ​​disappears, the entire pre-warning will be completely ineffective; (4) The "Vehicle Braking Early Warning Method" requires an additional off-vehicle millimeter-wave radar sensor, which is expensive. Utility Model Content

[0003] The utility model provides a brake pre-warning response device, which detects the user's current foot movement state, analyzes and determines whether the user has made a braking action, and when the user starts to make a braking action, the system lights up the brake lights in advance to reduce the occurrence of traffic accidents.

[0004] In order to achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0005] The utility model discloses a brake pre-warning response device, comprising a vehicle controller, a brake light, a No. 1 laser ranging sensor and a No. 2 laser ranging sensor. The No. 1 laser ranging sensor is installed at a position where it can detect the movement of the driver's right foot from the accelerator to the brake, and the No. 2 laser ranging sensor is installed at a position where it can detect the up and down movement of the brake. The No. 1 laser ranging sensor and the No. 2 laser ranging sensor are connected to the vehicle controller via a wire, and the vehicle controller is connected to the brake light via a wire.

[0006] According to one embodiment of the present invention, the No. 1 laser ranging sensor is installed on the side of the vehicle body.

[0007] According to one embodiment of the present invention, the No. 2 laser ranging sensor is installed above the brake.

[0008] According to one embodiment of the present utility model, a motor is provided at the position of the No. 1 laser ranging sensor and the No. 2 laser ranging sensor. The output end of the motor is connected to the logo board. The motor drives the logo board to rotate. When the vehicle is locked, the motor drives the logo board to rotate, covering the laser ranging sensor to play a role of waterproof and anti-stepping. When the vehicle is started, the motor drives the logo board to rotate, exposing the laser ranging sensor for detection.

[0009] According to one embodiment of the present invention, the No. 1 laser ranging sensor and the No. 2 laser ranging sensor are both installed in a box with a hole.

[0010] The utility model has the following beneficial effects:

[0011] The utility model determines whether the user is performing a braking action by detecting the movement state of the foot, thereby solving the problem of the brake light not responding when the braking action starts and solving the distance jitter problem caused by the laser ranging sensor. The brake light responds when the braking action starts, which increases the reaction time and processing time of the driver of the following vehicle, making the user's traffic environment safer and reducing the number of traffic accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the structure of two laser ranging sensors of the present invention placed on a vehicle;

[0014] Figure 2 This is a schematic diagram of the connection relationship between the laser ranging sensor, controller and brake light of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the logo board, motor and brake light of the utility model;

[0016] Figure 4 This is a control flow chart of the brake pre-warning device of the utility model.

[0017] In the figure: 1. Laser ranging sensor No. 1; 2. Vehicle controller; 3. Brake light; 4. Laser ranging sensor No. 2; 5. Motor; 6. Logo board; 7. Vehicle body; 8. Box with holes. DETAILED DESCRIPTION

[0018] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many 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 concepts of the example embodiments to those skilled in the art. Identical reference numerals in the figures represent identical or similar structures, and thus detailed descriptions thereof will be omitted.

[0019] like Figures 1 to 3 As shown, the utility model provides an embodiment: a brake pre-warning response device, including a vehicle controller 2, a brake light 3, a No. 1 laser ranging sensor 1 and a No. 2 laser ranging sensor 4, wherein the No. 1 laser ranging sensor 1 is installed at a position where it can detect the movement of the driver's right foot from the accelerator to the brake, and the No. 2 laser ranging sensor 4 is installed at a position where it can detect the up and down movement of the brake, the No. 1 laser ranging sensor 1 and the No. 2 laser ranging sensor 4 are connected to the vehicle controller 2 via a wire, and the vehicle controller 2 is connected to the brake light 3 via a wire.

[0020] Preferably, the No. 1 laser ranging sensor 1 is installed on the side of the vehicle body to detect the movement of the driver's right foot from the accelerator to the brake.

[0021] Preferably, the No. 2 laser distance measuring sensor 4 is installed above or below the brake. Of course, in order to avoid being stepped on or to be waterproof and dustproof, the No. 2 laser distance measuring sensor 4 is preferably installed on the vehicle body above the brake.

[0022] Preferably, motors 5 are provided at the positions of the No. 1 laser ranging sensor 1 and the No. 2 laser ranging sensor 4. The motors 5 are installed in the vehicle body 7. The output end of the motor 5 is connected to the logo board 6. The motor 5 drives the logo board 6 to rotate. When the vehicle is locked, the motor 5 drives the logo board 6 to rotate, covering the laser ranging sensor to play a role in waterproofing and anti-stepping. When the vehicle is started, the motor 5 drives the logo board 6 to rotate, exposing the laser ranging sensor for detection.

[0023] Preferably, the No. 1 laser ranging sensor 1 and the No. 2 laser ranging sensor 4 are both installed in the perforated box 8. On the one hand, the perforated box 8 can protect the laser ranging sensors, and on the other hand, it will not affect the detection. When the logo board 6 is rotated to the other side, the laser ranging sensor can detect the movement of the driver's right foot through the hole of the perforated box 8.

[0024] like Figure 4 As shown, the working process of the brake warning device of the utility model is as follows:

[0025] When the user starts the vehicle, the motor 5 is started, the logo plate 6 is retracted, and the No. 1 laser ranging sensor 1 and the No. 2 laser ranging sensor 4 detect the current movement state of the foot. After locking, the motor 5 is started and the logo plate 6 is rotated to cover the laser ranging sensor, thereby preventing stepping and waterproofing.

[0026] When the user's vehicle speed reaches or exceeds 40km / h and there is no accelerator signal, the driver's foot movement status is detected when the brake is in progress. In the No. 1 laser ranging sensor, the current distance value d1 of the user's foot from the laser sensor is detected cyclically. The first distance value d1 obtained is assigned to the variable value1 in the controller. The distance value d1 obtained by scanning at this time is assigned to the variable value2 in the controller every 2ms. The variable value2 in the controller is compared with the value d2 stored in the controller. If value2 is greater than d2, the first step is returned. If value2 is less than d2, the next step is performed. If value2 is less than d2, the first step is returned. If value2 is less than d2, the first step is returned. 2 is greater than the value of value1 by 8mm, and then the number of times the brake lights are triggered in the previous 10s is accumulated. If the number of triggers reaches 4 within 10s, the detection is delayed for 5 minutes. If the number of brake lights triggered within 10s is less than 4, the radar will start to detect the distance to the following vehicle. When the user's current speed is 40km / h to 50km / h, the brake lights will be turned on when the following vehicle is within 20m of the user; when the user's current speed is 51km / h to 70km / h, the brake lights will be turned on when the following vehicle is within 50m of the user; when the user's current speed is 71km / h to 99km / h, the brake lights will be turned on when the following vehicle is within 70m of the user; when the user's current speed exceeds 100km / h, the brake lights will be turned on when the following vehicle is within 150m of the user;

[0027] In the No. 2 laser ranging sensor, the current distance value d3 of the user's foot from the laser sensor is detected cyclically; the distance value d3 obtained for the first time is assigned to the variable value3 in the controller, and the distance value d3 obtained by the scan at this time is assigned to the variable value4 in the controller every 2ms; the variable value4 in the controller is compared with the value d4 stored in the controller; if value4 is greater than d4, the first step is returned; if value4 is less than d4, the next step is performed; and if the value of value4 is greater than or equal to 8mm than value3, the first step is returned; if the value of value4 is less than 8mm than value3, the previous 1 is accumulated. The system triggers the brake lights four times within 10 seconds, and then delays the detection for 5 minutes. If the brake lights are triggered less than four times within 10 seconds, the radar starts detecting the distance to the vehicle behind. When the user's current speed is between 40km / h and 50km / h, the brake lights will turn on when the vehicle behind is within 20m of the user; when the user's current speed is between 51km / h and 70km / h, the brake lights will turn on when the vehicle behind is within 50m of the user; when the user's current speed is between 71km / h and 99km / h, the brake lights will turn on when the vehicle behind is within 70m of the user; when the user's current speed exceeds 100km / h, the brake lights will turn on when the vehicle behind is within 150m of the user.

[0028] The utility model can prevent the brake light from being erroneously turned on due to distance jitter during measurement and other situations by modifying the controller code. When value2 is 8 greater than value1, the brake light will be turned on. When the detection value jitters around 8mm, the brake light will not be turned on, and effective anti-shake processing is performed. When value4 is 8 less than value3, the brake light will be turned on. When the detection value jitters around 8mm, the brake light will not be turned on, and effective anti-shake processing is performed, greatly reducing the risk of false alarms.

[0029] The utility model sets a detection range in the controller code, compares the variable value2 in the controller with the numerical value d2 stored in the controller to limit the ranging range, and compares value4 with the numerical value d4 stored in the controller to limit the ranging range, so that the detection range is controlled within a reasonable position distance; when the right foot deeply presses the accelerator or other operations cause the laser ranging sensor to miss other objects on the left side of the foot, the sensor will not mistakenly turn on the brake lights, thereby solving the problem of false alarms in this regard.

[0030] The controller of the utility model accumulates the number of times the brake light is triggered in the previous 10 seconds. If the number of triggering reaches 4 within 10 seconds, it will delay the detection for 5 minutes, thereby reducing the impact of user's risky driving and misoperation on the following vehicle.

[0031] Working principle: By modifying the code, the controller can receive the throttle signal and the user's current speed, and the laser ranging sensor and controller can detect the movement status of the foot. Laser ranging sensor No. 1 transmits the detected foot information to vehicle controller 2, and laser ranging sensor No. 2 4 transmits the detected foot information to vehicle controller 2. If it is detected that the foot is moving from the accelerator to the brake to perform a braking action, and the foot is braking from the high position of the brake downward, and the number of triggers within 10 seconds is less than 4, when the environment requires the user to turn on the brake lights at the beginning of the braking process to reduce risks, the vehicle controller 2 will transmit a signal to turn on the brake lights 3, which is more timely than the traditional response method, allowing the driver of the following vehicle more time to react, thereby reducing the occurrence of traffic accidents, and distance anti-shake and setting the appropriate measured distance can greatly reduce the situation where the brake lights are mistakenly lit.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A brake warning response device, comprising a vehicle controller and a brake light, characterized in that: It includes a No. 1 laser ranging sensor and a No. 2 laser ranging sensor. The No. 1 laser ranging sensor is installed at a position where it can detect the movement of the driver's right foot from the accelerator to the brake, and the No. 2 laser ranging sensor is installed at a position where it can detect the up and down movement of the brake. The No. 1 laser ranging sensor and the No. 2 laser ranging sensor are connected to the vehicle controller via a wire, and the vehicle controller is connected to the brake light via a wire.

2. The brake warning response device according to claim 1, characterized in that: The No. 1 laser ranging sensor is installed on the side of the vehicle body.

3. The brake warning response device according to claim 1, characterized in that: The No. 2 laser distance measuring sensor is installed above the brake.

4. The brake warning response device according to claim 1, characterized in that: Motors are provided at the positions of the No. 1 laser ranging sensor and the No. 2 laser ranging sensor. The output ends of the motors are connected to the logo boards. The motors drive the logo boards to rotate. When the vehicle is locked, the motors drive the logo boards to rotate, covering the laser ranging sensors to prevent water and pressure. When the vehicle is started, the motors drive the logo boards to rotate, exposing the laser ranging sensors for detection.

5. The brake warning response device according to claim 1, characterized in that: The No. 1 laser distance measuring sensor and the No. 2 laser distance measuring sensor are both installed in a box with a hole.

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