WO2009006798A1

WO2009006798A1 - A warning method and system for safety running of vehicle

Info

Publication number: WO2009006798A1
Application number: PCT/CN2008/001297
Authority: WO
Inventors: Liang Yue
Original assignee: Liang Yue
Priority date: 2007-07-11
Filing date: 2008-07-10
Publication date: 2009-01-15
Also published as: CN101082509A; CN101323279A

Abstract

A warning method for safety running of vehicle comprises the following steps. Firstly detecting the state of the running, then judging that whether the detecting value of the detecting equipment for running state reaches the predefined value or not. If the detecting value does not reach the predefined value, the detecting will go on. If the detecting value reaches the predefined value, the alert apparatus alerts warning signal. After the driver decreases the speed properly, the warning signal is eliminated, and then the running state is repeatedly detected. In the running process, the diver predefines the safety grade of the vehicle. It also discloses a warning system for safety running of vehicle.

Description

Motor vehicle safety driving warning method and warning system

The invention relates to the field of active safety driving of a motor vehicle, in particular to a safety driving warning method and a warning system for a motor vehicle. Background technique

There are more and more cars in China, and car accidents are still high. The biggest determinant of the safety of the vehicle is the driver itself. According to the research report of the project team at the second "China Road Traffic Accident Research Seminar" held in Shanghai, about 90% of the fatal accidents in 2005 were mainly related to the illegal driving of motor vehicle drivers. In the case of driver anecdote, the driver's age is a large proportion within three years. The lack of understanding of the safety performance of their own vehicles, low safety awareness, distraction, misjudgment, operational errors and irritating driving are violations of traffic rules. The general reason. Whether the driver has a complete sense of safety precaution, whether he has good driving habits, whether he is able to maintain concentration during the entire driving operation, and careful driving are essential for driving safety.

The current active safety technologies that can prevent car accidents include: body stability control system VSC, traction control system TRC, electronic brake force distribution device EBD, and brake assist system ABS, etc. The disadvantages are that they can only enhance the handling performance of the car, can not be reminded The driver actively raises the awareness of safety and concentrates on driving carefully, thus fundamentally eliminating the danger. There are also inventions similar to alarm clocks with timed voice prompts. The disadvantage is that the safety alert is an independent safety alert, not combined with the driver's deceleration, can not require the driver to make deceleration behavior and requires the driver to do the safe driving conditions. Thinking and judging, so the effect is not obvious. Summary of the invention

In order to solve the above problems, an object of the present invention is to provide a safe driving warning method and a warning system for a motor vehicle which can monitor the driving situation of the driver and remind the driver to drive safely.

The object of the present invention is achieved by the following technical solutions:

A method for driving a safe driving of a motor vehicle, comprising the steps of: 1) Testing the driving state;

2) Determine whether the detected value of the driving state detecting device reaches the set value; if the set value is not reached, return to step 1) to continue the detection; if the set value has been reached, proceed to step 3);

3) issue a warning signal;

4) The driver decelerates properly, the warning signal is removed, and the steps are repeated 1).

The above method also includes the stage in which the driver sets the safety level of the driving vehicle during driving.

The above driving state is one or several of the vehicle condition, the time of continuous driving, the mileage, the environmental condition, the driving experience, and the current state of the driver.

A safe driving warning system for a motor vehicle, comprising: a detecting sensing and deceleration clearing device for determining a driving state and eliminating an alert signal, for setting a current safety level and performing the determined driving state and set value The comparison of the safety level setting and the metering comparison device and the warning device for outputting a specific prompting manner to remind the driver to drive cautiously.

The detection sensing and deceleration clearing device is an auxiliary pedal with a switch; the safety level setting and measuring comparison device is a time relay; and the warning device is a buzzer.

• The auxiliary pedal is mounted on the original accelerator pedal of the car. The safe driving warning method for a motor vehicle according to the present invention detects the time or mileage or other indicators of driving by detecting the sensing device, and drives the warning device to output a warning signal when the preset value is reached, thereby reminding the driver to drive carefully and drive The player must eliminate the warning with the appropriate deceleration and clear the metering device. By judging the safe driving condition, the driver can be safely driven after the subjectively determined driving state is safe, thus ensuring driving safety. DRAWINGS

1 is a flow chart of a method for safe driving warning of a motor vehicle according to the present invention;

2 is a block diagram showing the composition of a safe driving warning device for a motor vehicle according to the present invention;

3 is a circuit diagram of one embodiment of a motor vehicle safety driving alert device of the present invention. detailed description

The method for safe driving warning of a motor vehicle according to the present invention will be described in detail below with reference to the accompanying drawings. The safe driving warning method for a motor vehicle of the present invention detects the time or mileage of driving by detecting the sensing device during driving, and drives the warning device to output a warning signal when the preset value is reached, and the driver is required to appropriately decelerate to eliminate the warning. signal. Then, depending on the condition of the car, road conditions, speed, weather conditions, environmental conditions, own conditions and driving experience, determine whether to continue to accelerate. When the accelerator is stepped on again, the driver's driving state is adjusted and the speed is adjusted to reduce traffic accidents.

1 is a flow chart showing a method for safe driving warning of a motor vehicle according to the present invention. As shown in the figure, the method includes the following steps:

1) Detecting the driving status (S10). The driving state may be the speed of the vehicle, the time of continuous driving, the mileage, the geographic coordinate position obtained by the car in the GPS navigator navigation system, the speed and the like, the engine speed, the negative pressure value of the intake port, and the current state of the driver. One or several. The state detection of the driver can be accomplished by the pupil detecting device and the head position detecting device.

2) It is judged whether or not the detected value of the driving state detecting device reaches the set value. If the set value is not reached, return to step 1) to continue the test; if the set value has been reached, proceed to step 3) (S20).

3) Issue a warning signal (S30). The warning signal may be an acoustic signal, a voice signal, an optical signal, a vibration signal, a warning signal of the GPS navigator, or a combination of two or more of them.

4) The driver decelerates properly, the warning signal is removed, and the steps 1) are repeated (S40). The driver judges whether to resume normal driving according to the objective conditions and his own condition, and when the accelerator is pressed to continue exercising, the detection system starts the work of the next cycle. If the car is uphill, drowning, especially when the overtaking is not suitable for deceleration, the warning device will give an alert, and the driver can continue driving during the warning until the vehicle is suitable for proper deceleration and then use the deceleration to eliminate the warning.

Further, it is preferable that the above method further includes a stage in which the driver sets the safety level of the driven vehicle during the driving (S11). This is because the driver is focused on driving, and the ability to accurately control the direction, speed, and braking of the car is a direct cause of safe driving. According to the results of the traffic survey, it is necessary to use some warnings to remind the driver to concentrate on driving carefully, and because of each type of vehicle, configuration, condition, travel time, road, weather conditions, environmental conditions, the driver's body The state, the mental state, the spirit of the same person every time, the physical condition is different, the driving experience is different, so the conditions for safe driving are different, and it is necessary to set the comprehensive factors. Full driving level.

2 is a block diagram showing the composition of a safe driving warning system for a motor vehicle according to the present invention. As shown in the figure, the method includes: a sensing sensing and deceleration clearing device 10 for determining a driving state and eliminating an alarm signal, and configured to set a current The safety level and the safety level setting and the comparison and comparison device 20 for comparing the measured driving state and the set value, and the warning device 30 for outputting a specific prompting manner to remind the driver to drive cautiously.

The detecting sensing and deceleration clearing device 10 may be a device for detecting a measuring stroke, a device for detecting a measuring speed, detecting a geographical coordinate position, a speed and the like, detecting a measuring engine speed, and detecting a negative pressure of the measuring engine intake port. The value device may also be a device that detects the state of the driver, such as: a device that can detect the position of the driver's pupil or head. Can be used: a) foot switch; b) on the original throttle mechanism of the car to modify the position switch, travel switch, magnetic switch, Hall switch and other devices with switching function; c) the existing mileage of the car Sense system; d) For medium and high-end cars with calculation function, the existing engine speed detection system and speed mileage detection function can be used.

The current level of safety can be set by the driver to set different levels of safe driving depending on the vehicle type, configuration, condition, travel time, weather conditions, road environmental conditions, mental state and physical condition at the time. For example: You can set the level of safe driving to 1-5: Level 1 corresponds to poor comprehensive factors, which is not conducive to safe travel, it is best not to travel, such as travel must pay great attention to safety, the interval between warnings is the shortest, or the most easy to issue warning signals Level 2; Corresponding to the comprehensive factors, level 2 is relatively unfavorable for safe travel, special attention should be paid to safety, the interval between warnings is shorter, or the level of warning signals is easier to issue; Level 3 corresponds to comprehensive factors, and travel can be made at intervals of warning. The level of the warning signal is issued when appropriate or appropriate conditions; the level 4 corresponds to a better comprehensive factor, which is more conducive to safe travel, the interval between warnings is longer, or the level of warning signals is less likely to be issued; The interval that is good for safe travel warnings is long and the level of warning signals is not easy to issue.

Setting the current security level can generally be done by a potentiometer knob or switch. For vehicles using a microcontroller or computer, the threshold of the metering comparison can be adjusted by changing the program parameter settings and changing the potentiometer or switch position. By changing the security level, the standard value (threshold) of the data comparison in the measurement comparison system is also changed, the interval at which the warning is issued is changed, or the warning signal threshold condition is most easily issued. The safety level setting and metering comparison device can be modified with a potentiometer knob or switch Change time threshold relay, adjustable stroke metering device, electronic circuit, adjustable air pressure switch or adjustable engine speed switch.

The warning device may be a sounding element, a horn, a buzzer or the like, or a mechanical vibrating device.

Fig. 3 is a circuit diagram showing a specific embodiment of the motor vehicle safety driving warning system of the present invention. As shown in the figure, the warning system includes: a foot switch K1 as a detection sensing and a deceleration clearing device, and a time relay coil TJ with a potentiometer adjustable delay time as a safety level setting and a metering comparison device, And the buzzer AH as a warning device.

Install the foot switch (an auxiliary pedal with a constant switch) on the car's accelerator pedal, and connect the positive pole of the car power supply to the fuse Fu, the foot switch K1, and the time relay coil to the negative end of the car battery (usually It is the car body.) Connect the normally open contact J1 of the time relay and the buzzer AH in series with the time relay coil TJ. The adjustment knob of the time relay functions as a safety level setting knob.

When the driver sets the time relay (ie, the safe driving level, the lower the safe driving level, the shorter the corresponding time), the accelerator pedal is depressed, the K1 is closed, and the detecting device starts to work.

When the driver does not press the accelerator pedal with the foot switch K1, the unit is not energized and does not work. When the driver steps on the accelerator pedal with the foot switch K1, the foot switch K1 is closed, the time relay coil TJ is energized, and the time relay starts timing. When the normal driving time reaches the time set by the relay (for example, the safety level 1 corresponds to 1 minute as the threshold), the normally open contact J1 of the time relay is closed, the buzzer AH is energized and a warning sound is issued to alert the driver to safe driving. Check the speed of the car. When the driver releases the accelerator pedal, the K1 contact is opened, the buzzer AH and the time relay coil TJ are de-energized, and the time relay normally open contact J1 is restored to the off state, and the warning sound from the buzzer AH disappears. When the driver judges that the driving condition is safe, he can press the accelerator pedal with the foot switch K1 to continue driving. At this time, the foot switch K1 is closed again, the time relay is energized, and the system starts the next stroke. Repeatedly, the driver's driving state is adjusted, the speed is adjusted, and the safe driving conditions are checked to reduce traffic accidents.

Another embodiment of the motor vehicle safety driving warning system of the present invention is that the main body is a metal and plastic box that can be attached or mounted in a suitable place on the dashboard of the automobile, and the auxiliary pedal with the switch is mounted on the accelerator pedal. There are knobs or switches on the main unit that can adjust the level of safety and speaker volume. There are two indicators on the main unit, one shows that the power is on, indicating that the device is working; one flashes during the warning, reminding the driver to drive carefully and asking the driver to release the accelerator pedal and disconnect the switch on the pedal. There are two sets of wires on the main unit, one set to the normally open switch of the accelerator pedal, and the other set of sockets are plugged into the car cigarette lighter to take power to supply power to the host. The main board has a circuit board with electronic components and chips. It can measure the time when the normally open contacts on the accelerator pedal are closed. When the set value is reached, the light-emitting elements will flash, the output will be alerted, and the memory in the main unit stores the recorded traffic. Safety language, played through the speaker during the warning.

The safe driving warning method for a motor vehicle of the present invention has the following effects:

1. Remind the driver, especially the novice to see the instrument, the rear view mirror, comprehensively and correctly sense the changes inside and outside the car, and cultivate good driving habits;

2. Ask the driver to repeat the judgment of the speed at that time by a specific deceleration action (usually the right foot releases the accelerator pedal and then step on it) to ensure safety. Even if you need to speed up properly, you are guaranteed to be in your own control. This has proven to be very useful in effectively avoiding speeding or improving alertness in speeding situations.

3. In the case of low safety performance of the vehicle, the driver can be reminded that the vehicle is on the road with a fault, and measures to prevent accidents are made in advance.

4. Focus on specific deceleration actions to avoid distracting the driver's mind and judge the delays.

5. You can remind the driver to stay calm, weigh the pros and cons of speeding, and pay attention to safety.

6. Determine the situation in time, prepare early, avoid mistakes in the emergency, and make mistakes such as wrong brakes and throttles.

Claims

Claim

A method for driving a safe driving of a motor vehicle, comprising the steps of:

1) Testing the driving state;

2) Determine whether the detected value of the driving state detecting device reaches the set value; if the set value is not reached, return to step 1) to continue the test; if the set value has been reached, proceed to step 3);

3) issue a warning signal;

2. The method according to claim 1, further comprising: a stage in which the driver sets a safety level of the driven car during driving. ·

The method according to claim 2, characterized in that: the driving state is one or more of a vehicle condition, a time of continuous driving, a mileage, an environmental condition, a driving experience, and a current state of the driver.

4. A safe driving warning system for a motor vehicle, comprising: a detection sensing and a deceleration clearing device for determining a driving state and eliminating an alarm signal, for setting a current safety level and determining the driving state and The safety level setting and the metering comparison device for comparing the set values and the warning device for outputting a specific prompting manner to remind the driver to drive cautiously.

The warning system according to claim 4, wherein: the detecting sensing and deceleration clearing device is an auxiliary pedal with a switch; and the safety level setting and measuring and comparing device is a time relay; The warning device described is a buzzer.

6. The warning system according to claim 5, wherein: the auxiliary pedal is mounted on an original accelerator pedal of the automobile.