KR20160008911A - Apparatus and method for preventing slip of vehicle tire - Google Patents

Abstract

The present invention relates to an apparatus for preventing slippage of a vehicle tire, and more specifically, to an apparatus for preventing slippage of a vehicle tire, which is mounted in a vehicle to spray a solution to the tire when it snows or the road is frozen. In addition, the apparatus of the present invention comprises: multiple spray nozzles installed on a wheel guard of the vehicle to spray a solution supplied from a supply unit to the tire of the vehicle; and a heat-generating unit for applying heat to the multiple spray nozzles to melt the frozen parts. The driver can conveniently spray the solution while riding in the vehicle or driving the vehicle to improve the grip of the tire and prevent a malfunction due to freezing in winter when the external temperature is low.

Description

TECHNICAL FIELD [0001] The present invention relates to an anti-slip device for a vehicle tire,

[0001] The present invention relates to an anti-skid device for a vehicle tire and a non-skid method using the anti-skid device, and more particularly to a skid prevention device for a vehicle tire which is mounted on a vehicle, [0002]

Generally, when snow or roads freeze, snow chains are mounted on the tires of vehicles or snow spray is applied to prevent the vehicle from slipping.

Here, the snow spray is composed of a polymer resin and an organic solvent as main components, which is also called a spray chain. When the driver applies the coating on the tire of a vehicle, it can improve the tearing force of the tire on snowy or frozen roads.

On the other hand, the snow spray does not need to be mounted separately, which is easier to use than a snow chain. However, since the driver has to spray directly, it is difficult to uniformly spray the snow on all surfaces of the tire.

In addition, when the snow spray is sprayed onto the tire of the vehicle, the driver may need to repeatedly turn the steering wheel to adjust the steering angle of the tire to spray the snow spray, which reduces the driver's convenience.

Particularly, since the snow spray has a short sustainability, the snow spray must be re-sprayed every 30 minutes or less, thereby further reducing the driver's convenience. Also, there is a problem that the snow spray is inconvenient for the driver to purchase or prepare in advance and to keep it in the vehicle at all times.

Disclosure of the Invention The present invention has been made in view of the above problems, and it is an object of the present invention to provide a tiresetting device capable of improving the tractive force by spraying a spraying liquid onto tires when snow or roads freeze, And a slip prevention method using the slip prevention device.

It is another object of the present invention to provide a non-slip device for a vehicle tire that sprays a spray liquid at an appropriate level according to the running speed of the vehicle and the steering angle of the tire, and a slip prevention method using the same.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a spraying apparatus comprising: a supply unit installed in a vehicle for supplying spray liquid; A spraying portion for spraying the spray liquid toward the tire of the vehicle; A heat generating unit for applying heat to the ejecting unit when it is freezing; And a controller for controlling the spraying of the spray liquid and the spraying time according to the running speed of the vehicle.

In a preferred embodiment, the jetting portion is provided with at least one jetting nozzle disposed in the wheel guard of the vehicle.

In a preferred embodiment, the heat generating portion is provided as a heat ray or a thermoelectric element and is connected to the injection nozzle.

In a preferred embodiment, the injection unit is provided with a plurality of injection nozzles, and the control unit causes the spray liquid to be injected from a relatively large number of injection nozzles as the running speed of the vehicle increases.

In a preferred embodiment, the control unit shortens the injection time of the spray liquid as the running speed of the vehicle increases.

In a preferred embodiment, the control unit stops the spraying of the spraying liquid when the steering angle of the tire is out of the threshold.

In a preferred embodiment, the spraying portion adjusts the spraying angle of the spraying liquid corresponding to the change in the steering angle of the tire.

In a preferred embodiment, the jetting portion is arranged such that at least two jetting nozzles face different directions at the same position.

In a preferred embodiment, the control unit injects the spray liquid from any one of the injection nozzles at the same position in accordance with the steering angle of the tire.

In a preferred embodiment, the supply unit comprises: a storage tank in which the spray liquid is received; And a supply motor for spraying the spray liquid in the storage tank from the spray portion under the control of the control portion.

In a preferred embodiment, the control unit causes the remaining amount of the spray liquid in the storage tank to be displayed in the in-vehicle instrument panel.

Further, the present invention provides a method of controlling a vehicle, comprising: inputting a turn-on signal for injecting a spray liquid into a tire of a vehicle; A running speed input step of inputting a running speed of the vehicle; A calculation step of calculating the spraying state and the spraying time of the spray liquid according to the traveling speed; And a spraying step of spraying the spray liquid from the at least one spray nozzle toward the tire.

In a preferred embodiment of the present invention, before the spraying step, a step of defrosting the spraying nozzle to defroze the spraying nozzle by operating the heat generating unit.

In a preferred embodiment, in the calculating step, when there are a plurality of the injection nozzles, the number of the injection nozzles to be opened according to the running speed is further calculated.

In a preferred embodiment, the plurality of injection nozzles in the injection step are opened for 9 to 11 seconds when the running speed is between 0 and 20 km / h, and the running speed is 21 to 35 In the case of the speed between km / h, two injection nozzles are opened for 6 to 8 seconds, and if the running speed is between 36 and 50 km / h, all the plurality of injection nozzles are opened for 3 to 5 seconds.

In a preferred embodiment, the traveling speed input step further receives the steering angle of the tire.

In a preferred embodiment, the injection nozzle is closed when the steering angle of the tire is equal to or greater than a threshold value in the injection step.

In a preferred embodiment, in the spraying step, the spraying angle of the spraying liquid at the spraying nozzle is adjusted upward, downward, leftward or rightward according to the steering angle of the tire.

In a preferred embodiment, in the spraying step, the spray liquid is sprayed from any one of the injection nozzles at the same position in accordance with the steering angle of the tire.

According to the above-mentioned problem solving means, the present invention is characterized in that a plurality of injection nozzles for spraying a spray liquid supplied from a supply unit to a tire of a vehicle are provided in a wheel guard of a vehicle, and heat generation And it is possible to improve the tearing force of the tire by spraying the spray liquid conveniently in a state in which the driver is boarding or running in the vehicle, and it is possible to prevent the trouble due to icing even in the winter when the outside temperature is low.

Further, the present invention includes a control unit for controlling the spraying of the spray liquid, the spraying time, etc. according to the traveling speed of the vehicle or the steering angle of the tire, so that even if the speed of the vehicle changes, The spraying of the unnecessary spray liquid can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view for explaining an anti-skid device of a vehicle tire according to an embodiment of the present invention; FIG.
2 is a view for explaining an installation position of a jetting section according to an embodiment of the present invention;
3 is a view for explaining an injection nozzle disposed at the same position according to an embodiment of the present invention.
4 is a view for explaining a method of preventing a vehicle tire from slipping according to an embodiment of the present invention.

It should be understood that the specific details of the invention are set forth in the following description to provide a more thorough understanding of the present invention and that the present invention may be readily practiced without these specific details, It will be clear to those who have knowledge.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

FIG. 1 is a view for explaining an anti-skid device of a vehicle tire according to an embodiment of the present invention, FIG. 2 is a view for explaining an installation position of the injection part according to an embodiment of the present invention, 1 is a view for explaining an injection nozzle disposed at the same position according to an embodiment of the present invention.

1 and 2, a non-skid device for a vehicle 10 tire 11 according to an embodiment of the present invention is for spraying a spray liquid to a tire 11 of a vehicle 10, A supply unit 110, a jetting unit 120, a heating unit 130, and a control unit 140.

Here, the spray liquid refers to a liquid snow spray composed of a main component of a polymer resin and an organic solvent.

The supply unit 110 is configured to store the spray liquid and supply the spray liquid to the spray unit 120 to be described later. The supply unit 110 includes a storage tank 111 and a supply motor 112.

The storage tank 111 may be provided in an engine room inside the vehicle 10. For example, the storage tank 111 may be provided in the engine room at a rear side of the wiper washer tank .

In addition, the storage tank 111 may include an injection port for opening and closing the injection port so that the spray liquid can be injected into a predetermined position of the upper part of the storage tank 111, and a discharge port connected to the spray part 120, which will be described later.

The storage tank 111 may be formed of a synthetic resin material or a metal material and may further include a heat insulating material on the inner wall surface or the outer wall surface so that the spray liquid can be stably stored even when the temperature of the outside increases or decreases It is possible.

The supply motor 112 is for spraying the spray liquid stored in the storage tank 111 with the sprayer 120 to be described later. The supply motor 112 is disposed between the storage tank 111 and the sprayer 120 Or may be integrally provided with the storage tank 111.

The supply motor 112 and the jetting unit 120, which will be described later, may be connected to a transfer tube or a transfer tube for transferring the spray liquid.

The supply motor 112 is operated under the control of a control unit 140 to be described later so as to supply the spray liquid in the storage tank 111 to the jetting unit 120 to be described later at a predetermined pressure.

The injection unit 120 is for spraying the spray liquid toward the tire 11 of the vehicle 10 and is provided with a plurality of spray nozzles for spraying the spray liquid from the wheel guard of the vehicle 10 toward the tire 11 And may be provided with injection nozzles 121, 122, 123, and 124, respectively.

The injection unit 120 may include a valve that is opened or closed under the control of the controller 140 and may be disposed toward the center of the tire 11 in the forward, have.

In one embodiment of the present invention, the jetting section 120 includes a first jetting nozzle 121, a second jetting nozzle 122, a third jetting nozzle 123, and a fourth jetting nozzle 124 The four injection nozzles 121, 122, 123 and 124 are provided in the wheel guard of the vehicle 10 and are controlled by the control unit 140 to be described later. To spray the spray liquid.

The sprayer 120 may be disposed on the wheel guard with at least one spray nozzle without the four spray nozzles 121, 122, 123, and 124.

As another example, two or more injection nozzles 125, 126, and 127 may be disposed at the same position, and the injection nozzles 125, 126, and 127 at the same position may face each other as shown in FIG.

Here, the same position does not mean only one point but includes a predetermined area in the front, rear, or diagonal direction on the same line or on the wheel guard of the vehicle 10 with respect to the tire.

For example, the same position refers to any one of the positions where the four injection nozzles 121, 122, 123 and 124 are located, and the first injection nozzle 121, the second injection nozzle 122 Means that two or more injection nozzles 125, 126, and 127 can be disposed at respective positions where the third injection nozzle 123 and the fourth injection nozzle 124 are disposed. In addition, the injection nozzles 125, 126, and 127 at the same position are provided at the positions of the second injection nozzles 122.

If the three injection nozzles 125, 126, and 127 are disposed at the same position and are directed to the inside, the center, and the outward direction of the tire 11, even if the steering angle of the tire 11 changes, So that the nozzle can face the center of the bottom surface of the tire (11).

The jetting unit 120 may further include means for adjusting the angle of each of the jetting nozzles 121, 122, 123 and 124. For example, the jetting unit 120 may include a tilting motor, 121, 122, 123, 124) and the angle of spray of the spray liquid.

When the spray liquid is frozen in the spray part 120 in a season where the outside temperature is low, such as winter, the heating part 130 is used to defrost the spray part 120, As shown in FIG.

The heating unit 130 may be integrally formed with the spray unit 120 and may include a tube or a tube connected to the spray nozzles 121, 122, 123, and 124 through which the spray liquid flows And can be disposed on the outer surface of the flow path.

Also, the heat generating unit 130 may be a heat or a thermoelectric device, and generate heat when a power source is applied from a battery of the vehicle 10 or a separate power source device. At this time, the thermoelectric element means a thermistor, and may be a positive temperature coefficient thermistor (PTC).

Here, since the heating unit 130 defrosts frozen spray liquid inside the spray unit 120, spraying of the spray liquid can be smoothly performed in the spray unit 120 in winter.

The control unit 140 controls the degree of spraying of the spray liquid at the spraying unit 120. The spraying unit 120 or the supply motor 112 controls the spraying of the spraying liquid, And controls the injection time.

In addition, the controller 140 may control the injection rate and the injection time of the spray liquid according to the running speed of the vehicle 10 or the steering angle of the tire 11. [

For example, as the traveling speed of the vehicle 10 increases, the controller 140 may spray the spray liquid from a relatively large number of the spray nozzles 121, 122, 123, and 124 and shorten the spray time .

Here, the controller 140 may receive information on the traveling speed and the steering angle from an MDPS or an electronic control unit (ECU) provided in the vehicle 10.

When the jetting section 120 is provided with four jetting nozzles 121, 122, 123 and 124, the control section 140 controls the driving of the vehicle 10 at a speed of 0 to 20 km / The first injection nozzle 121 disposed in front of the tire 11 is opened and when the vehicle 10 travels at a speed of 21 to 35 km / h, the front and the diagonal directions of the tire 11 When the vehicle 10 travels at a speed of 36 to 50 km / h, the injection nozzles 121, 122, 123, 124, respectively.

Also, the controller 140 may open the first injection nozzle 121 for 9 to 11 seconds at a speed of 0 to 20 km / h, and may open the first injection nozzle 121 at a speed of 21 to 35 km / The second injection nozzle 121 and the third injection nozzle 123 are opened for 6 to 8 seconds and all the injection nozzles 121, 122, 123 and 124 are opened for 3 to 5 seconds at a speed of 36 to 50 km / . Accordingly, it is possible to prevent scattering of the spray liquid generated due to the traveling speed of the vehicle 10. [

In addition, the control unit 140 is provided to stop the spraying of the spray liquid when the steering angle of the tire 11 is out of the threshold. Here, the threshold may be a specific value between 15 and 20 degrees.

That is, when the spray liquid can not be sprayed onto the bottom surface of the tire 11 due to a change in the steering angle of the tire 11, the controller 140 stops spraying the spray liquid, unnecessarily consuming the spray liquid .

Alternatively, when the angle of the spray unit 120 is adjustable, the controller 140 may adjust the spray angle of the spray liquid upward, downward, leftward, or rightward according to a change in the steering angle of the tire 11.

The control unit 140 may control the steering angle change of the tire 11 when the jetting unit 120 includes a plurality of jetting nozzles 125, 126, and 127 facing the same direction in different directions, And spray the spray liquid from a specific spray nozzle.

Meanwhile, the control unit 140 causes the remaining amount of the spray liquid in the supply unit 110 to be displayed on the instrument panel of the vehicle 10 so that the driver of the vehicle 10 can check the amount of the spray liquid in advance, It is possible.

The non-skid device of the tire 10 according to the embodiment of the present invention may further include a switch unit (not shown) provided in the interior of the vehicle 10 to receive a user command from a driver . Here, the switch unit may be provided to receive a turn-on signal or a turn-off signal for operation of the anti-slip apparatus.

The control unit 140 detects the temperature of the snow or the ice of the road or senses the temperature of the road so that the control unit 140 controls the heating unit 130 And a sensor unit (not shown) for operating the sensor. Here, the sensor unit may be a temperature sensor for sensing an external temperature, or an ultrasonic sensor or an optical sensor for detecting freezing of snow or roads.

4 is a view for explaining a method of preventing a vehicle tire from slipping according to an embodiment of the present invention.

Referring to FIG. 4, a method of preventing a vehicle tire from slipping according to an embodiment of the present invention will be described.

First, a turn-on signal for spraying the spray liquid to the tire of the vehicle is received. At this time, the turn-on signal is transmitted to the tire of the vehicle through a non-slip device (S110).

The non-skid device may be configured to receive the turn-on signal as a user command from a driver who is in the vehicle, automatically receive input when the vehicle is turned on, Or to automatically receive input when detecting freezing of the road.

Next, the control unit receives the running speed of the vehicle. At this time, information on the running speed from the motor-driven steering unit (MDPS) or the electronic control unit (ECU) (S120).

The control unit may further receive information on the steering angle of the tire of the vehicle from the electric steering system or the electronic control unit.

Next, in step S130, whether or not the spray liquid is sprayed is calculated according to the traveling speed. At this time, the controller causes the spray liquid to be sprayed for a relatively short time as the vehicle runs fast.

Here, the injection of the spray liquid is performed through at least one injection nozzle disposed in the wheel guard of the vehicle, and the plurality of injection nozzles are disposed to be spaced apart from the wheel guard, or the injection angle of the spray liquid may be adjusted Or a plurality of injection nozzles may be disposed at different positions on the same position of the wheel guard.

In addition, the control unit is configured to calculate the spraying state of the spraying liquid and the spraying time according to installation conditions of the spraying nozzle.

First, when there are a plurality of spray nozzles for spraying the spray liquid, the controller may further calculate the number of spray nozzles to be opened according to the running speed.

For example, the control unit allows one injection nozzle to open for 9 to 11 seconds if the running speed is between 0 and 20 km / h. At this time, the one injection nozzle may be, for example, a specific injection nozzle disposed in front of the tire.

In addition, the control unit allows the two injection nozzles to open for 6 to 8 seconds when the running speed is between 21 and 35 km / h. At this time, the two injection nozzles may be specific injection nozzles arranged in the forward and diagonal directions of the tire, for example.

Also, the control unit may open all the plurality of injection nozzles for 3 to 5 seconds if the running speed is between 36 and 50 km / h.

As another example, when the injection angle of the injection nozzle is adjustable, the control unit may further calculate the injection angle of the injection nozzle to move upward, downward, leftward, or rightward corresponding to the steering angle of the tire.

At this time, the control unit may adjust the injection angle of the injection nozzle by the change of the tire steering angle so that the spray liquid may be injected from the injection nozzle toward the center of the bottom surface of the tire.

For example, the control unit may calculate the injection angle of the injection nozzle using a predetermined equation, or the injection angle of the injection nozzle corresponding to the tire steering angle may be stored in advance.

As another example, when a plurality of injection nozzles are disposed at the same position of the wheel guards, the control unit may be configured to specify one of the injection nozzles for spraying the spray liquid among the injection nozzles at the same position.

Here, the injection nozzles at the same position may be arranged on the same line of the wheel guards toward the inside, the center, or the outward direction of the tire.

Next, the heat generating unit operates to defrost the injection nozzle. At this time, the heat generating unit is provided integrally with the injection nozzle and is capable of generating heat under the control of the control unit (S140).

Here, the heat generating unit may include a heat ray or a thermoelectric element. On the other hand, the heat generating unit may be provided to operate simultaneously with the input of the turn-on signal.

Next, the spray liquid is injected from at least one injection nozzle toward the tire under the control of the control unit (S150).

At this time, when there are a plurality of the injection nozzles, the plurality of injection nozzles are opened by the number calculated by the controller, and each of the injection nozzles is opened by the injection time calculated by the control unit and injects the spray liquid.

When the spray angle of the spray nozzle is adjustable, the spray angle of the spray nozzle is moved upward, downward, leftward or rightward according to the tire steering angle, and then the spray liquid is sprayed.

Further, when a plurality of injection nozzles are disposed at the same position of the wheel guards, a specific injection nozzle disposed toward the center of the tire among the injection nozzles at the same position is opened to spray the spray liquid.

Meanwhile, if the steering angle input from the electric power steering apparatus or the electronic control unit is equal to or more than a threshold value, the control unit may close the injection nozzle to stop spraying the spray liquid.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

110:
111: Storage tank
112: Supply motor
120:
121: First injection nozzle
122: second injection nozzle
123: Third injection nozzle
124: Fourth injection nozzle
130:
140:

Claims (19)

A supply unit installed inside the vehicle and supplying the spray liquid;
A spraying portion for spraying the spray liquid toward the tire of the vehicle;
A heat generating unit for applying heat to the ejecting unit when it is freezing; And
And a controller for controlling the spraying of the spray liquid and the spraying time according to the running speed of the vehicle.
The method according to claim 1,
Wherein the injection unit is provided with at least one injection nozzle disposed in a wheel guard of the vehicle.
3. The method of claim 2,
Wherein the heat generating part is provided as a heat ray or a thermoelectric element and is connected to the injection nozzle.
The method of claim 3,
Wherein the sprayer is provided with a plurality of spray nozzles and the control unit causes the spray liquid to be sprayed from a relatively large number of spray nozzles as the traveling speed of the vehicle increases.
5. The method of claim 4,
Wherein the control unit shortens the injection time of the spray liquid as the running speed of the vehicle increases.
5. The method of claim 4,
Wherein the control unit stops the spraying of the spray liquid when the steering angle of the tire is out of the threshold value.
5. The method of claim 4,
Wherein the spraying portion adjusts an injection angle of the spraying liquid corresponding to a change in the steering angle of the tire.
5. The method of claim 4,
Wherein the injection unit is arranged so that at least two injection nozzles are oriented in different directions at the same position.
9. The method of claim 8,
Wherein the control unit injects the spray liquid from any one of the injection nozzles at the same position in accordance with the steering angle of the tire.
10. The method according to any one of claims 1 to 9,
Wherein the supply unit includes:
A storage tank in which the spray liquid is accommodated; And
And a supply motor for spraying the spray liquid in the storage tank by the jetting unit under the control of the control unit.
11. The method of claim 10,
Wherein the control unit causes the remaining amount of the spray liquid in the storage tank to be displayed on the instrument panel of the vehicle.
A signal input step of inputting a turn-on signal for spraying the spray liquid to the tire of the vehicle;
A running speed input step of inputting a running speed of the vehicle;
A calculation step of calculating the spraying state and the spraying time of the spray liquid according to the traveling speed; And
And spraying the spray liquid from at least one injection nozzle toward the tire.
13. The method according to claim 12, wherein, prior to the injection step,
And a defrosting nozzle defrosting step of defrosting the injection nozzle by operating the heat generating unit.
14. The method of claim 13, wherein, in the calculating step,
Wherein when the number of the injection nozzles is plural, the number of the injection nozzles to be opened according to the running speed is further calculated.
15. The method according to claim 14, wherein in the spraying step,
One injection nozzle is opened for 9 to 11 seconds if the running speed is between 0 and 20 km / h, and if the running speed is between 21 and 35 km / h, two injection nozzles are opened for 6 to 8 seconds , And all the plurality of injection nozzles are opened for 3 to 5 seconds if the running speed is between 36 and 50 km / h.
16. The method according to any one of claims 12 to 15,
Wherein a steering angle of the tire is further inputted.
17. The method according to claim 16,
Wherein the injection nozzle is closed when the steering angle of the tire is equal to or greater than a threshold value.
17. The method according to claim 16,
Wherein an injection angle of the spray liquid in the injection nozzle is adjusted upward, downward, leftward or rightward according to a steering angle of the tire.
17. The method according to claim 16,
Wherein the spraying liquid is sprayed from any one of the injection nozzles at the same position in accordance with the steering angle of the tire.

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