CN103253228A - Monitoring and speed control method using automobile safety belt - Google Patents

Abstract

The invention belongs to the technical field of automobile safety driving, and in particular relates to a method for monitoring and controlling the speed of automobile seat belts. A method for monitoring and controlling the speed of an automobile safety belt, which includes a vehicle speed sensor connected to the automobile ECU, a voice reminder device, a warning light and a sensing device. , the sensing device works and sends a safety signal to the car ECU, and the car is running normally. When the car ECU does not receive the safety signal sent by the sensing device, the vehicle speed sensor will send the current speed value to the car ECU, and the car ECU will compare and judge the speed value. The beneficial effects of the present invention are: the safety belt monitoring speed control method can always control the speed of the vehicle within 100km/h, can increase the usage rate of the seat belt to the greatest extent, protect the safety of life and property of drivers and passengers, and compel the use of seat belts, Otherwise, it will be more humane than driving a car, and it will be more easily accepted by the majority of car owners.

Description

A method for monitoring and controlling the speed of automobile seat belts

technical field

The invention belongs to the technical field of automobile safety driving, and in particular relates to a method for monitoring and controlling the speed of automobile seat belts.

Background technique

Seat belts and airbags, as auxiliary configurations for the passive safety of automobiles, are increasingly valued by people. Although airbags continue to be popularized and become increasingly intelligent, seat belts are still the most effective device to protect the safety of drivers and occupants in cars so far, and are widely used in the automotive field, playing an important role in ensuring the safety of occupants. When the car has a frontal collision, a side collision and a rollover, the safety belts can reduce the accident fatality rate by 57%, 44% and 80% respectively. Drivers and passengers are 10 times more likely to use seat belts. The "Road Traffic Safety Law" clearly stipulates that you must wear seat belts when driving a car, but the effect is not ideal in actual use. The death rate of traffic accidents in my country is significantly higher than that in developed countries, but the use rate of seat belts is significantly lower In developed countries, the main reason is the indifference of safety awareness and excessive concern about the discomfort when wearing seat belts. Therefore, the promotion of vehicle seat belt reminders and mandatory use systems has important practical significance.

Also have some safety belts for vehicles with reminding function at present, as the announcement number is: a kind of voice safety belt provided by the Chinese invention patent of CN102407825A, pressure sensor is installed in the automobile seat cushion, switch is installed on the safety buckle of automobile safety belt, meets When the pressure condition is set, the sensor is turned on and the voice prompts: "Please fasten the seat belt", and the switch of the pressure sensor is turned off when the seat belt is fastened. The voice seat belt only emphasizes the importance of seat belts through voice prompts to remind the occupants of the car to fasten their seat belts. In actual use, the effect is very limited. When driving at high speed or even racing, you can still drive the car normally without wearing seat belts. There are driving safety hazards.

Contents of the invention

The present invention mainly aims at the problems that existing safety belts for vehicles with reminding function have limited safety belt use effect, low safety belt utilization rate, and still have potential driving safety hazards, and provides a safety belt with better use effect. The vehicle safety belt monitoring speed control method is low in utilization rate and high in driving safety.

The above-mentioned technical problems of the present invention are mainly solved by the following technical solutions: a method for monitoring and controlling speed of an automobile safety belt, which includes an automobile ECU and a vehicle speed sensor, and it also includes a voice prompting device and a safety belt arranged in the buckle of the safety belt. The sensing device, the vehicle speed sensor, the voice reminder device and the sensing device are all electrically connected to the car ECU. When the car is running, when the reel of the seat belt rotates or the lock tongue is inserted into the buckle, the sensing device works and sends a safety signal to the car ECU , the car is running normally, when the car ECU does not receive the safety signal sent by the sensing device, the car speed sensor will send the current car speed value to the car ECU, and the car ECU will compare and judge the car speed value as follows:

a) When the vehicle speed is less than 40km/h, the vehicle runs normally;

b) When the vehicle speed is 40-60km/h, the ECU of the car sends an instruction to the voice reminder device, and after receiving the instruction, the voice reminder device sends out an alarm sound to remind drivers and passengers to fasten their seat belts;

c) When the vehicle speed is 60-80km/h, the car ECU controls the engine speed to limit the upper limit of the vehicle speed to no more than 100km/h, and the car ECU sends an instruction to the voice reminder device, and the voice reminder device sends out a human voice after receiving the instruction Inform drivers and passengers that the speed limit has been reduced, and remind drivers and passengers to fasten their seat belts;

d) When the vehicle speed is 80-100km/h, the ECU of the car controls the engine speed, gradually reduces the vehicle speed to 20km/h, and sends an instruction to the voice reminder device, and sends out a human voice to inform the driver and passengers that the vehicle speed has been reduced.

e) In any of the steps a, b, c, and d above, if the car ECU receives the safety signal sent by the sensing device, the subsequent step of determining the vehicle speed value will be canceled and the car will run normally.

The sensing device is connected to the car ECU. When the reel of the seat belt is rotated or the tongue is inserted into the buckle, the sensing device in the buckle can know that the seat belt has been fastened. At this time, a safety signal will be sent to the car ECU, the car ECU It can judge whether the seat belt has been fastened according to the safety signal. If the driver and passengers have worn the seat belt, the car is running normally. When entering the speed range of the four steps a, b, c, d, according to the corresponding steps, the car ECU will send corresponding control commands to each device to remind drivers and passengers to wear seat belts to the greatest extent. The reminder device can use a warning indicator light or a buzzer to remind drivers and passengers to wear seat belts. As we all know, the faster the vehicle speed, the more likely traffic accidents will occur. This safety belt monitoring speed control method can always control the vehicle speed within 100km/h, which can maximize the utilization rate of seat belts and protect the lives and property of drivers and passengers. Mandatory use of seat belts, otherwise the car will not start, is more humane and easier to be accepted by the majority of car owners.

As a preference, the vehicle speed sensor, the voice reminding device and the sensing device are all powered by the vehicle battery. The connection is simple and convenient, and the reliability is high.

Preferably, the sensing device is a trigger switch or an induction sensor. After the seat belt is fastened, the trigger switch or inductive sensor works and will send a safety signal to the car ECU.

Preferably, it also includes a warning light connected with the automobile ECU. The addition of warning lights further improves the use of seat belts and protects the lives and property of drivers and passengers to the greatest extent. The warning light is used in conjunction with the voice reminder device, and the effect is better. For example, the first 10 seconds are warning light prompts, and the last 10 seconds are alarm sound prompts or human voice prompts.

Therefore, the beneficial effects of the present invention are: the safety belt monitoring and speed control method can always control the speed of the vehicle within 100km/h, can improve the utilization rate of the safety belt to the greatest extent, protect the safety of life and property of drivers and passengers, and ensure the safety of compulsory use. It is more humane and easier to be accepted by the majority of car owners.

Description of drawings

Accompanying drawing 1 is a kind of system working block diagram of the present invention.

As shown in the figure: 1-car ECU, 2-vehicle speed sensor, 3-voice reminder device, 4-sensing device, 5-warning light, 6-engine.

Detailed ways

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Example:

As shown in the accompanying drawing 1 of the description, a method for monitoring and controlling the speed of a car safety belt includes a car ECU1 and a vehicle speed sensor 2, and it also includes a voice reminder device 3, a warning light 5 and an induction device 4 arranged in a seat belt buckle , the induction device 4 is an induction sensor, and the vehicle speed sensor 2, the warning light 5, the voice reminder device 3 and the induction device 4 are all electrically connected with the automobile ECU1, and the vehicle speed sensor 2, the voice reminder device 3 and the induction device 4 are all powered by the automobile storage battery. During the running of the car, when the reel of the seat belt rotates or the lock tongue is inserted into the buckle, the sensing device 4 works and sends a safety signal to the car ECU1, and the car is running normally. When the car ECU1 does not receive the safety signal sent by the sensing device 4 , the vehicle speed sensor 2 will send the current vehicle speed value to the car ECU1, and the car ECU1 will compare and judge the vehicle speed value as follows:

a) When the vehicle speed is less than 40km/h, the vehicle runs normally;

b) When the vehicle speed is 40-60km/h, the car ECU1 sends an instruction to the voice reminder device 3, and after receiving the instruction, the voice reminder device 3 sends out an alarm sound to remind drivers and passengers to fasten their seat belts;

c) When the vehicle speed is 60-80km/h, the car ECU1 controls the speed of the engine 6 to limit the upper limit of the vehicle speed to no more than 100km/h, and the car ECU1 sends an instruction to the voice reminder device 3, and the voice reminder device 3 receives the instruction and sends out Human voice informs drivers and passengers that the speed limit has been reached, and reminds drivers and passengers to fasten their seat belts;

d) When the speed of the vehicle is 80-100km/h, the car ECU1 controls the speed of the engine 6, gradually reduces the speed of the vehicle to 20km/h, and sends an instruction to the voice reminder device 3, and sends out a human voice to inform the driver and passengers that the speed of the vehicle has been reduced. Small.

e) In any of the steps a, b, c, and d above, if the car ECU1 receives the safety signal sent by the sensing device 4, the subsequent step of determining the vehicle speed value will be cancelled, and the car will run normally.

The sensing device is connected to the car ECU. When the reel of the seat belt is rotated or the tongue is inserted into the buckle, the sensing device in the buckle can know that the seat belt has been fastened. At this time, a safety signal will be sent to the car ECU, the car ECU It can judge whether the seat belt has been fastened according to the safety signal. If the driver and passengers have worn the seat belt, the car is running normally. When entering the speed range of the four steps a, b, c, d, according to the corresponding steps, the car ECU will send corresponding control commands to each device to remind drivers and passengers to wear seat belts to the greatest extent. The reminder device can use a warning indicator light or a buzzer to remind drivers and passengers to wear seat belts. As we all know, the faster the vehicle speed, the more likely traffic accidents will occur. This safety belt monitoring speed control method can always control the vehicle speed within 100km/h, which can maximize the utilization rate of seat belts and protect the lives and property of drivers and passengers. Mandatory use of seat belts, otherwise the car will not start, is more humane and easier to be accepted by the majority of car owners.

The warning light and the voice reminder device are used alternately. The total alarm reminder time is 60 seconds. The first 10 seconds are the warning light prompt, and the last 10 seconds are the alarm sound prompt or human voice prompt. In addition, the automobile ECU is the central controller of the automobile, which can control the speed of the vehicle. This is an existing mature technology, and this patent does not describe it.

It should be understood that this embodiment is only used to illustrate the present invention and is not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Claims (4)

1. A car seat belt monitoring speed control method, which includes a car ECU (1) and a vehicle speed sensor (2), characterized in that it also includes a voice reminder device (3) and an induction device arranged in a seat belt buckle (4), the vehicle speed sensor (2), the voice reminder device (3) and the induction device (4) are all electrically connected to the vehicle ECU (1). After buckling, the sensing device (4) works and sends a safety signal to the car ECU (1), and the car runs normally. When the car ECU (1) does not receive the safety signal sent by the sensing device (4), the vehicle speed sensor (2) will Send the current vehicle speed value to the car ECU (1), and the car ECU (1) compares and judges the car speed value as follows: a) When the vehicle speed is less than 40km/h, the vehicle runs normally; b) When the vehicle speed is 40-60km/h, the car ECU (1) sends an instruction to the voice reminder device (3), and after receiving the instruction, the voice reminder device (3) sends out an alarm sound to remind drivers and passengers to fasten their seat belts; c) When the vehicle speed is 60-80km/h, the car ECU (1) controls the engine (6) speed to limit the upper limit of the vehicle speed to no more than 100km/h, and the car ECU (1) sends an instruction to the voice reminder device (3) , the voice reminder device (3) sends out a human voice to inform the driver and passengers that the speed limit has been reached after receiving the instruction, and reminds the driver and passengers to fasten their seat belts; d) When the vehicle speed is 80-100km/h, the car ECU (1) controls the engine (6) speed, gradually reduces the vehicle speed to 20km/h, and sends an instruction to the voice reminder device (3), giving a voice notification The driver and passengers have reduced the speed of the vehicle; e) In any of the steps a, b, c, and d above, if the vehicle ECU (1) receives the safety signal sent by the sensing device (4), the subsequent step of determining the vehicle speed value is canceled and the vehicle runs normally. 2 . The method for monitoring and controlling the speed of a car seat belt according to claim 1 , wherein the vehicle speed sensor ( 2 ), voice reminding device ( 3 ) and sensing device ( 4 ) are all powered by a car battery. 3 . 3. The method for monitoring and controlling the speed of a car seat belt according to claim 1 or 2, characterized in that the sensing device (4) is a trigger switch or an induction sensor. 4 . The method for monitoring and controlling the speed of an automobile seat belt according to claim 3 , further comprising a warning light ( 5 ) connected to the automobile ECU ( 1 ).