KR19980029731A - Car tire puncture warning device - Google Patents

Abstract

The present invention relates to a car tire puncture alarm device that automatically warns a driver of a punctual fact when a tire is punctured while driving. In the present invention, a puncture is installed by detecting a means for detecting a puncture of a tire around a wheel. When the air starts to leak, it is immediately detected and the driver is warned so that safety measures can be taken before the air is completely drained from the tire to prevent damage to the tire and further prevent accidents.

Description

Car tire puncture warning device

The present invention relates to a car tire puncture warning device that automatically warns a driver that a tire puncture has occurred when a car tire (hereinafter referred to as "tire") is punctured while driving.

Because of the structure of the car, the driver cannot see the tires turning on the ground in the car.

Therefore, even if a puncture occurs on the tire and leaks, it is not so easy to find it immediately unless you are an experienced and experienced driver.

That's why most drivers don't even know that the tires are punctured and they're leaking air, but after they've been running for a while, they've heard that the wheels are completely out of contact with the ground. We've been using wheel replacement or towing a vehicle to a garage when there's no safe place.

In addition, recently, when the tire is punctured, a coagulant is automatically filled in the tire, and safety measures for safely moving the vehicle to a close distance have been taken and applied to a high speed bus vehicle.

As mentioned above, since there was no device to notify the driver immediately even if the tires were punctured while driving, the tires were punctured only after hearing that the air was completely drained from the flat tire and the wheels were grounded to the ground. Inevitably, the tires were usually not reusable and, in the worst case, they had to bear the economic loss of replacing the wheels.

In particular, it has been a problem that the steering wheel is brushed to one side while driving without knowing the air leakage from the tire, causing a safety accident.

In addition, the method of filling the tire with coagulant during puncture can have a great effect in preventing accidents due to puncture, but the price is high, so there is a limit to the application to ten thousand vehicles, and the flat tire cannot be reused. As the tire is filled with a coagulant, it is not possible to dispose of the used tires, causing another environmental problem.

Therefore, in the present invention, by installing a detection means for detecting the puncture of the tire around the wheel of the car, if the air starts to leak due to the puncture immediately detects this to warn the driver to take safety measures before the air is completely out of the tire In order to prevent damage to the tires and to prevent accidents.

1 is a side view of a vehicle with a flat tire.

2 is a block diagram of the alarm device of the present invention.

3 is a state diagram of the installation of the sensing means constituting the alarm device of the present invention,

(A) shows the road grounding state of a normal tire,

(B) is a diagram showing the road grounding state of a punctured (or depleted) tire.

4 is a control flow diagram of the present invention.

(Explanation of symbols for the main parts of the drawing)

One ; Sensing means 2; Signal conversion means

3; Control means 4; Alarm

T; Reference value T ′; Distance sensing value

Figure 2 is an exemplary view showing the configuration of the alarm device of the present invention, the configuration of the present invention, as illustrated in the figure, is installed around the wheel senses the distance to the road surface and the corresponding electric signal A sensing means 1 for outputting, a signal converting means 2 for converting and outputting an analog signal transmitted from the sensing means 1 into a digital signal, and a distance sensing signal transmitted from the signal converting means 2 for a time. The distance detection value T ′, which is counted as, is compared with the reference value T corresponding to the distance from the road surface of the tire, and if the distance detection value T ′ is smaller than the reference value T for a predetermined time, the tire It is composed of a control means (3) for outputting a control signal, which is regarded as a puncture, and an alarm means (4) for receiving a signal from the control means (3) and outputting a warning sound.

The sensing means 1 is made of an ultrasonic sensor, and the alarm means 4 may use a chime, a buzzer or a voice generator.

Referring to the control flow diagram of the present invention showing such a configuration with reference to the control flow diagram of Figure 4, when the vehicle starts to drive all the parameters are initialized and the sensing means (1) installed around the wheel (for example, the upper end of the wheel) The ultrasonic wave is emitted to measure the distance (l ') to the road surface.

This signal is sent to the signal converting means 2, is converted into digital, and input to the control means 3. Then, in the control means 3, the distance detection value T 'obtained by counting the distance detection signal measured by the detection means 1 in time is inputted to the normal value of the tire as shown in the reference value T (A) of FIG. The distance from the sensing means 1 measured in the state to the road surface 1 is counted.

Therefore, if the two values are the same, the tire is recognized as a normal tire state. If the distance detection value T 'is smaller than the reference value T and the smaller state is maintained for a certain time (this means that the tires are punctured or airy). The tire contact surface is crushed a lot.) The control means 3 immediately outputs the control signal to the alarm means 4, and the alarm means 4 receiving the signal warns the driver to the tire. Will tell you that it is a puncture.

Therefore, the driver can put the vehicle in a safe place before a lot of air is exhausted from the tire, so that the tire can be directly replaced or towed.

Thus, according to the present invention, by installing the detection means (1) for detecting the puncture state of the tire around the wheel, if the tire is punctured while driving, it can be notified to the driver immediately before the air is completely out of the tire through a quick action The damage can be prevented, and furthermore, the safety accident can be prevented in advance.

Claims (2)

Sensing means (1) installed around the wheel to sense a distance from the road surface and output an electrical signal corresponding thereto; Signal converting means (2) for converting and outputting an analog signal transmitted from said sensing means (1) into a digital signal; The distance detection value (T ') counting the distance detection signal transmitted from the signal converting means (2) in time and the reference value (T) corresponding to the distance between the normal road surface of the tire are compared and the distance continues for a predetermined time. The control means 3 for outputting a control signal in consideration of the puncture of the tire when the detected value T 'is smaller than the reference value T; Car tire puncture alarm device characterized in that it comprises a warning means for receiving a signal from the control means (3) and outputs a warning sound. 2. The automobile tire puncture alarm device according to claim 1, wherein the sensing means (1) is configured as an ultrasonic sensor and installed at an upper end portion of the wheel.