KR19990046040A - Skid-proof method and its device of automobile - Google Patents

Abstract

According to the present invention, when a car is traveling on a road, the road slips on the road, the road with water, the freezing road or the icy road, and snowfall caused by snowfall, when the car slips while the tire is stopped by stepping on the brake pedal (brake pedal) The present invention relates to a method and an apparatus which can prevent slippage of a vehicle by blowing and spraying an anti-slip agent in a solid or liquid state onto a front surface of a tire (wheel) to increase the friction coefficient of a road surface.

Description

Slip-proof method and its device of automobile

The present invention is to stop the rotation of the tire by pressing the brake pedal (braking pedal) in the case of a car braking on a road on a general road, a road with water, a freezing road, an icy road or snow by snow When the vehicle is detected in the state of slipping, the liquid or solid anti-slip agent is ejected and sprayed on the front of the tire (wheel) or the front of the tire to increase the friction coefficient of the road surface, thereby preventing the vehicle from slipping. Method and apparatus therefor.

In general, the coefficient of motion friction varies considerably depending on the surface condition of the road on which the vehicle runs. For example, if the motion friction coefficient of the general pavement is assumed to be 0.5, the motion friction coefficient drops to about 0.45 when sand is sprayed on the road surface, and the motion friction coefficient drops to about 0.35 when sand is sprayed on the snow road.

In addition, when sand is sprayed on the ice road, the motion friction coefficient drops to about 0.3, the motion friction coefficient on the snow road drops to about 0.2, and the motion friction coefficient on the ice road drops to about 0.15.

Therefore, when the vehicle driving is suddenly braked to avoid slipping when the vehicle meets an icy road, an icy road or a snowy road, the slippage of the car is further increased due to the reduction of the driving inertia and the motion friction coefficient of the road surface. Therefore, even if the rotation of the tire is stopped, the car is slipping, crashing or colliding and overturning accidents occur, there is a problem in which damage to life and property.

On the other hand, in the past, when a car runs on an icy road, an icy road, or a snowy road, a snow chain is installed on the tire to prevent slippage of the tire and help the vehicle run smoothly, or by improving the tread groove of the tire without using a snow chain. Snow tires are being used to prevent the slip of the car.

In the above, the snow chain has to be directly mounted on a plurality of tires when the road freezes or snows, and when the road freezes or snow is released, the snow chain has to get off and then manually remove the snow chains mounted on the tires manually. have.

In addition, when driving alternately between the freezing road and the non-freezing road, it is inconvenient to repeatedly mount the snow chain. Due to such inconvenience, there are many examples of running the snow chain while the snow chain is mounted. There is a problem that the life is shortened and noise is generated.

On the other hand, snow tires that prevent damage to the road have the advantage that they do not need to be installed or removed like snow chains, and that slippage on snow roads is prevented, while on a freezing road, the skid cannot achieve the anti-slip effect as expected. If worn to the extent there is a problem that can not exhibit the natural slip prevention function.

On the other hand, in view of the above problems, a device that prevents the tire from slipping by installing a friction piece that can be pulled out, driven or folded in the tread portion of the tire has been devised, but this is directly to the tread portion or tire wheel portion of the tire Since the installation is difficult to manufacture, it is difficult to install on existing tires, and if the tires are not firmly mounted, there are problems such as breakage or noise caused by flow and the operation is uncertain, and smooth operation is not achieved.

In addition, even when the surface of the road is wet due to rain or rain, the coefficient of friction falls due to the water film phenomenon (surface effect). Therefore, deceleration driving is required, and even when the vehicle suddenly brakes due to the appearance of an obstacle in the road surface state. There is a sliding phenomenon.

On the other hand, in the past, if the vehicle slips or is likely to occur, the device was designed to allow the driver to spray the anti-slip agent such as sand to the road surface by operating the manual device, but this is actually determined by the driver and manually operated. There is a problem that can not be used when the use of the anti-slip agent.

Accordingly, the present invention is the rotation of the tire by braking (when the foot brake pedal is pressed) when the car driving on the road suddenly appeared on the road including water, ice road or ice road or snowfall, including the general road Even in this stopped state, if the so-called slippage phenomenon occurs when the vehicle moves forward due to the reduction of the driving inertia or the motion friction coefficient of the road surface, the friction coefficient of the road surface is automatically ejected and sprayed to the front of the tire by automatically ejecting and spraying a liquid or solid anti-slip agent. An object of the present invention is to provide a method and an apparatus for preventing slippage of an automobile by increasing the number of the vehicle.

In order to achieve the above object, a storage bin having a discharge port is installed at an upper portion of the front of a car tire to accommodate a non-slip agent in a solid state, and a braking is provided by opening and closing means respectively controlled by a control unit at the discharge port of the storage bin. Even if the tire is stopped in the road, if the car slips, the outlet is opened, and the anti-slip agent contained in the reservoir is sprayed onto the road surface or the surface of the tire to increase friction resistance. Prevent your car from slipping on icy roads, snowy roads, or roads with water.

In addition, by installing a reservoir having a discharge pipe in the upper portion of the front of the car tire to accommodate the liquid anti-slip agent, and by installing an electronic pump under the control of the control unit in the discharge pipe of the reservoir to rotate the tire by braking Even if it stops, if the car slips, it detects the slippery of the liquid container in the reservoir as it opens and discharges the surface of the tire or the front road of the tire to increase the frictional resistance. Prevent your car from slipping on the road.

In addition, one end of the vehicle is provided with a tire stop sensor for detecting the rotation of the tire (wheel), an acceleration sensor for detecting the state of the road surface (friction coefficient of the road surface), and a car tilt detection sensor for detecting the tilt of the vehicle Then, the tire stop signal, the acceleration signal according to the state of the road surface or the friction coefficient of the road surface, and the inclination detection signal of the vehicle are respectively input to the inputs of the controller.

In addition, by connecting a setting unit having an operation button to the input of the control unit to enable and disable the function and manually operate the present invention, if necessary, by connecting the memory unit to the input and output of the control unit is input as the driving of the car Driving reference speed data compared with driving speed, acceleration data compared with acceleration signal inputted with different value according to road condition or friction coefficient of road surface, downhill data and uphill data by ramp, initial speed according to braking, discharge port Various data such as opening / closing time, outlet opening / closing cycle, operation time of the electronic pump, and operation cycle of the electronic pump are to be stored, and the opening / closing device for opening and closing the discharge port of the reservoir is connected to the output of the controller. .

In addition, the vehicle's current driving speed signal and a brake signal by pressurization of the brake pedal (braking pedal) are input to the other input of the control unit, and a display unit consisting of a seven segment or a liquid crystal display is connected to the output of the control unit. Function setting, deactivation, input data, remaining amount of anti-slip agent, etc. are displayed.

In addition, the tire stop sensor, which consists of a plurality of permanent magnets and hall sensors, is installed on the wheels or axles of the tires. When the vehicle is suddenly braked, the tires may not rotate even if the vehicle moves forward due to deterioration of the driving inertia and road surface friction coefficient If it stops, try to detect it.

In addition, by installing a tilt sensor in the middle of the car to detect the angle of inclination of flat and downhill and the angle of uphill on the downhill, the type of anti-slip agent is determined in consideration of the fact that the friction coefficient is lower than that of the flat road. In addition, by increasing the ejection amount and injection amount of the non-slip agent than the flat road to compensate for the friction coefficient error, when sliding on an uphill road, the friction coefficient increases more than the flat, so the type of anti-slip agent is determined, and also the non-slip agent is ejected In order to compensate the friction coefficient error by reducing the amount and the injection amount than the flat, in particular, to prevent the slip of the car on the ramp and also to prevent unnecessary waste of the anti-slip agent.

In addition, the acceleration sensor is installed in the middle part of the vehicle, and when the vehicle is suddenly braked on a general road, an icy road, a snowy road, or a road with water, an acceleration signal that varies depending on the road surface is input to the controller so that the controller By judging road condition (friction coefficient), spray or spray liquid slipper or solid slipper selectively according to the slippery road condition, and control the opening degree and opening time of outlet and discharge pipe, Let the anti-slip agent squirt out.

In the present invention, the anti-slip agent (resistance-enhancing material or frictional force increasing agent) may be in the form of powder or particles such as sand or calcium chloride, or by selectively spraying a non-sticky liquid non-slip agent onto the surface or road surface of the tire, or the surface and road surface of the tire. Simultaneously to increase frictional resistance.

In addition, A.B.S. It is preferable to install the vehicle anti-skid device of the present invention in a vehicle equipped with a brake because steering of the vehicle can be handled during braking.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1-a block diagram of the present invention.

Figure 2-Cross section view of the reservoir in which the solid antislip agent is accommodated in the present invention.

3 is a cross-sectional view showing the ejection state of the solid anti-slip agent in the present invention.

4 is a cross-sectional view showing the ejection state of the liquid anti-slip agent in the present invention.

5-a cross-sectional view of the tire stop sensor portion of the present invention.

Figure 6-Circuit block diagram of the present invention.

7-graphical representation of the slip time and coefficient of friction in the present invention.

8 is a graph of slip time and coefficient of friction in the present invention.

Figure 9-Graphical representation of slip time and coefficient of friction in the present invention.

<Description of Symbols for Main Parts of Drawings>

(2)-car (4)-tire (wheel)

(6) (6a)-Slipper Reservoir (8) (8a)-Slipper

(10)-outlet (10a)-outlet

(10b)-Injection Nozzle (11)-Rack Gear

(12)-control section (13)-gate

(14)-Opening and closing device (14a)-Electronic pump

(15) (26)-Reduction Motor (16)-Road (Road)

(17)-Pinion (16a)-snow or ice

(20)-Cover (22)-Anti-Skid Consumption Sensor

(24)-indication (28)-feed screw

(30)-tire stop sensor (32)-acceleration sensor

(34)-Tilt Sensor (36)-Travel Speedometer

(38)-braking sensor (40)-setting

(40a)-Operation Button (42)-Memory Unit

(44)-Axle (46)-Permanent Magnet

(48)-Hall sensor support (50)-Hall sensor

(μs)-Stop Friction Coefficient (μk)-Motion Friction Coefficient

FIG. 1 is a configuration diagram of the present invention, in which a hopper-shaped storage container 6 having a large volume is installed on an upper portion of a front surface of a tire 4 mounted on an automobile 2, so that the anti-slip agent 8 can be stored. In the lower part of the storage container 6, an outlet 10 through which the anti-slip agent 8 is discharged and an outlet opening / closing device 14 controlled by the control unit 12 are installed to provide a general road, a road with water, snowy roads or ice sheets. When the vehicle 2 slips on the road surface 16 in the section 16a, the anti-slip agent 8 is ejected to the tire 4 or the front road of the tire 4.

The opening / closing method of the outlet 10 may be a opening method, a slide method, a tray method, or the like. However, the opening and closing of the discharge port 10 may be performed using a sliding gate and a solenoid or a deceleration motor capable of forward / reverse rotation. It is preferable to have a structure in which the anti-slip agent 8 in the solid state is not sandwiched between the guide rails (guide grooves).

2 and 3 are cross-sectional views of the reservoir 6 shown in one embodiment of the present invention, the rack 13 is formed on one side of the gate 13 is coupled to the opposite guide groove of the discharge port 10 to slide motion The speed reducer motor 15 which is rotated forward and reverse on the outer surface of the reservoir 6, and then connected to the control unit 12, and the pinion 17 fixed to the rotating shaft of the speed reducer motor 15 By engaging with the rack gear 11, it is possible to control the opening and closing degree of the gate 13 in accordance with the degree of forward and reverse rotation of the reduction motor 15.

In addition, the upper portion of the reservoir (6) by installing the cover 20 to supply the anti-slip agent (8), but the cover 20 is installed to secure the noise or vibration that may occur when the vehicle 2 is running And a non-slip agent consumption sensor 22 that can detect the consumption amount of the anti-slip agent 8 (remaining amount or presence) on the inner lower portion of the storage container 6, and then to the CPU or MICOM. When the anti-skid agent 8 is insufficient to be connected to the control unit 12 is configured to be displayed by the display unit 24, the display unit 24 is installed near the operating instrument panel to easily check the remaining amount of the anti-slip agent 8 with the naked eye. Make up for it.

When the non-slip agent 8 is in the form of powder or particles, the response speed due to the ejection is slow, and thus the feed screw 28 that rotates with the reduction motor 26 inside the storage container 6 is vertically as shown in FIG. 3. When the discharging opening 10 is opened, the conveying screw 28 rotates so that the non-slip agent 8 in the solid state can be quickly conveyed toward the discharging opening 10 so that a sufficient amount of sliding is possible even if the vehicle is slipped during high-speed driving. The inhibitor 8 can be ejected.

In the above, the anti-slip agent (resistance-enhancing material or friction increase agent) is a surface or road surface 16 of the tire 4 by using a non-slip agent in the form of powder or particles such as sand or calcium chloride or a liquid anti-slip agent. Alternatively, the jets may be ejected to the surface of the tire 4 and the road surface 16 at the same time to increase the frictional resistance between the road surface 16 and the tire 4.

On the other hand, in the case of using the liquid anti-slip agent (8a) as shown in Figure 4 Hopper-shaped storage container 6a having a rather large volume and chemical resistance and watertightness in the upper portion of the front surface of the tire 4 mounted on the vehicle 2 Each of them is installed so that the non-slip agent (8a) of the liquid state can be stored, and the discharge pipe (10a) for discharging the anti-slip agent (8a) is installed in the lower portion of the reservoir 6, in the middle portion of the discharge pipe (10a) The electronic pump 14a under the control of the control unit 12 is provided, and the injection nozzle 10b is installed at the end of the discharge pipe 10a so that the road surface of the road in general, road with water, snow road or ice plate 16a section ( In the case where the vehicle 2 slips in 16, the tire 4 or the front surface of the tire 4 causes the liquid non-slip agent 8a to be injected through the injection nozzle 10b.

In the discharge pipe 10a, since the flow path is normally closed by the electronic pump 14a, leakage of the anti-slip agent 8a is prevented.

In the present invention, one storage container 6a having a large inner capacity is installed in a suitable place of the vehicle 2, and then, the liquid anti-slip agent 8a is accommodated, and the electronic pump 14a is placed in the middle of the discharge pipe 10a. And a plurality of hoses each having a spray nozzle 10b fixed to an end of the discharge pipe 10a, and the spray nozzle 10b is located on the front surface of each tire 4, The present invention can also be achieved by being installed so as to be sprayed simultaneously on the front road of the tire 4 or the front road of the tire 4 and the surface of the tire 4.

In the present invention, in the case of a front wheel drive car, the anti-skid storage container 6 is installed only at the upper part of both front wheels, and in the case of a rear wheel drive car, the anti-skid storage container 6 is installed at the upper part of both rear wheels so that a small amount of the anti-slip agent 8 is provided. Even when the vehicle 2 can be prevented from slipping, even if the anti-slip agent 8 is consumed a lot, the anti-skid storage container 6 is preferably installed at both front and rear wheels, so that the frictional force is further increased to double the safety.

In addition, one end of the vehicle 2, the tire stop sensor 30 for detecting that the rotation of the tire 4 is stopped, and the acceleration sensor for detecting the road surface state (friction coefficient) when the running car slips due to sudden braking ( 32 and a tilt detection sensor 34 for detecting a tilt of the vehicle 2 driving on a slope, respectively, and then connected to the inputs of the controller 12, respectively, to stop the tire 4 and the road signal. The acceleration signal and the tilt detection signal of the vehicle 2 are respectively input.

In the above, the tire 4 stop sensor 30 is a plurality of permanent magnets (pieces) formed on the inner surface of the tire wheel or axle 44 (axle rotating in conjunction with the tire) relatively small outer diameter as shown in FIG. 46 is installed at regular intervals, and the support section 48 fixed to the vehicle body is installed to fix the hall sensor 50 electrically connected to the control unit 12, but is installed to be close to the permanent magnet 46. By sensing the magnetic force of the rotating permanent magnet 46 to allow the control unit 12 to determine whether the tire 4 is rotated or stopped.

The tire stop sensor 30 composed of a plurality of permanent magnets 46 and the Hall sensor 50 in the above, since the axle 44 also rotates when the tire 4 rotates, the pulse proportional to the rotational speed of the axle 44 A signal is input to the control unit 12 to determine that the tire 4 is rotating. On the contrary, when the rotation of the tire 12 is stopped by braking or stopping of the vehicle 2, a pulse signal is input to the control unit 12. Since the tire 12 is not input, it is determined that the tire 12 is stopped.

The acceleration sensor 32 installed in the middle portion of the vehicle 2 is a general road in which the vehicle 2 is being driven or unpaved, a road with water, a road such as snowy roads or ice sheets 16a (a breakout). Situation) When the vehicle 2 slips in a state of sudden braking (tire of the tire), an acceleration signal having a different value is input to the controller 12 according to the slipping road surface or the friction coefficient of the road surface. ) Can determine the state of the road surface 16 and the coefficient of friction, and accordingly the solid state anti-slip agent 8 or the liquid state anti-slip agent 8a is selected according to the state of the road surface, and the anti-slip agent ( 8) It is possible to select the ejection amount or injection amount of (8a).

Meanwhile, in the present invention, the acceleration signal input to the controller 12 varies according to the state (friction coefficient) of the road surface 16, and the stopping distance according to this can be obtained as follows.

Where the stopping distance (x) is the initial velocity Since it is proportional to the square of, the friction coefficient (μ) can be determined by the acceleration (a: speed change).

For example, as mentioned above, if the motion friction coefficient of the general pavement is assumed to be 0.5, the acceleration signal of the pavement with sand is inputted as about 0.45, the acceleration signal of the sanded snow road is input as about 0.35, and the sand The acceleration signal of the ice road scattered is input as about 0.3, the acceleration signal of snow road is input as about 0.2, and the acceleration signal of the ice road is input as 0.15.

The control unit 12 determines the type and the amount of the anti-slip agent (8) (8a) by determining the road surface state and the friction coefficient of the road according to the acceleration signal input differently according to the state of the road surface, and also running The speed signal input through the speedometer is increased in proportion to the amount of the non-slip agent 8 that is ejected as the traveling speed input before and after the vehicle 2 is faster than the reference traveling speed stored in the memory 42. On the contrary, when the traveling speed input is slower than the reference traveling speed stored in the memory 42, the ejection amount of the anti-slip agent 8 ejected is proportionally reduced.

In addition, the tilt detection sensor 34 installed in the middle portion of the vehicle 2 in the above, when the vehicle 2 travels the slope, the tilt angle signal due to the downhill and the tilt angle signal due to the uphill road controller 12 By inputting each of the controllers 12, the controller 12 may compare the downhill data and the uphill data stored in the memory 42 to determine the degree of inclination of the vehicle 2.

According to the degree of inclination of the slope, such as the downhill road or the uphill road, the friction coefficient is lowered or increased as compared with the general flat road, so that an error occurs in the acceleration signal detected by the acceleration sensor 34.

That is, when the friction coefficient of the flat road is 0.5, the acceleration decreases to about 0.3 on the downhill road by about 0.2. On the contrary, the acceleration rises about 0.2 to about 0.7 on the uphill road. In consideration of the occurrence of a mistake in the determination of the road condition, the compensation for the error is selected to select the type of the anti-slip agent (8) (8a), and by adding or subtracting the blowing amount and the injection amount of the anti-slip agent (8) (8a). 2) to prevent slipping on the slope.

In addition, the driving speedometer 36 is connected to the input of the control unit 12 so that the current driving speed signal of the vehicle 2 is inputted, and the braking detection sensor 38 is connected to another input of the control unit 12 to brake. The brake signal by the pedal is input.

In addition, the setting unit 40 and the operation button 40a are connected to the input of the control unit 12 so that various functions can be set or released, and the memory unit 42 is connected to the input / output unit of the control unit 12. The driving reference speed data, which is compared with the driving speed input according to the driving of the vehicle 2, the acceleration data which is compared with the acceleration signal inputted at different values according to the state of the road surface 16, and the downhill road by the slope Data and uphill data, and various data such as initial speed according to braking, outlet opening / closing time, outlet opening / closing cycle, and the like, and the display unit 24 is connected to the output of the control unit 12 so that the setting unit 40 Function setting and deactivation through the) and input various data and data input completion, remaining amount of the anti-slip agent, etc. are displayed, the output of the control unit 12 and the discharge port 10 and the discharge pipe of the reservoir (6) (6a) Opening and closing 10a The opening and closing device 14 and the electromagnetic pump 14a are connected.

7 is a graph showing the correlation between the slip time (t) and the friction coefficient (μ) in the present invention, in the case of the static friction coefficient (μs) rises up to the maximum static friction coefficient while the time (t) It can be seen that the kinematic friction coefficient (k) does not change even when the kinetics is changed, and the kinematic frictional coefficient (k) or static friction of the road surface 16 or the ice path 16a is caused by the ejection of the anti-slip agent 8 (8a). A state in which the coefficient (μs) increases instantaneously, or the raised static friction coefficient (μs) increases little by little, as shown in FIGS. 8 and 9, or the elevated static friction coefficient (μs) and the motion friction coefficient (μk) change little by little. It can be seen that the slip of the vehicle 2 is prevented.

Reference numeral 52 is a support period.

According to the present invention configured as described above, the tire 2 in a state in which the vehicle 2 traveling on the road is braked by stepping on a brake pedal (braking pedal) on a road with water by a general road, a freezing road, snowy roads, rainy weather, etc. 4) When the vehicle 2 is slid due to the speed driving, inertia, or lowering the motion friction coefficient of the road surface even when the tire 4 stops, the road surface 16 or the ice located in front of the tire or tire (wheel) The friction coefficient of the road surface is increased by spraying the anti-slip agent 8 (8a) to the road (16a), so that the car 2 and the tire (4) is a general road, freezing road, water road, ice road or The following describes the operation and effect of the present invention by not slipping off the snow.

In the present invention, when the braking signal is input to the control unit 12, the anti-skid device of the present invention is operated. If the braking signal is not input to the control unit 12, the anti-skid device of the present invention is stopped.

Meanwhile, the lid 20 is filled with a liquid slipper or solid slipper 8 or 8a such as sand or calcium chloride through the lid 20, and then the lid 20 is secured by a fixing means. It is fixed to prevent the opening and noise of the cover 20 due to the driving shock or vibration, and when the vehicle 2 travels, the vehicle 2 through the traveling speedometer 36 as an input of the controller 12. The current driving speed signal is input, and when driving down the slope, the inclination angle signal downhill or the uphill inclination angle signal is inputted by the inclination sensor 34, and when the brake pedal is pressed and braked, the braking sensor 38 By the input of the control unit 12, the braking signal is input, when the tire 4 is completely stopped, the tire 4 stop signal is input, the inclination value of the inclination sensor 34 according to the inclination of the vehicle (2) Input this It said, and an acceleration signal according to the road surface is detected by the acceleration sensor 32 are input.

On the other hand, when the vehicle 2 suddenly appears while the snow road or the ice 16a suddenly appears while driving, even if the tire 4 stops, the vehicle 2 continues in the driving direction due to the reduction of the driving inertia and the motion friction coefficient of the road surface. Since the sliding coefficient does not change even when the time changes as shown in FIG. 7, the slip coefficient 8 is ejected to the front surface of the tire, and thus, as shown in FIGS. The slip of 2) is alleviated or the slip is prevented.

That is, when the tire 4 is stopped due to the sudden braking of the vehicle 2 on the general road 16, the snow road or the ice 16a, and the road with water, the tire composed of the plurality of permanent magnets 46 and the hall sensor 50 Since the pulse is not input from the stop sensor 30, the control unit 12 determines that the tire 4 is stopped, and the acceleration signal and the memory unit 42 which are input at different values according to the state of the road surface. It is compared with the acceleration data stored in advance to determine the slip of the vehicle 2 and at the same time determine the road surface condition and friction coefficient of the road driving.

For example, when a motion friction coefficient (movement friction resistance) signal of about 0.5 is input through the acceleration sensor 32, the control unit 12 determines that it is a general pavement, rather than a non-slip agent 8 in a solid state such as sand or calcium chloride. By automatically spraying the liquid slipper 8a having a sticky adhesive force (sticky property), the motion friction coefficient is increased to 0.5 or more, thereby preventing the slipping of the automobile 2.

That is, when the controller 12 determines that the control unit 12 slides on the general road 16 and operates the electronic pump 14a, the liquid anti-slip agent 8a passes through the discharge pipe 10a and the injection nozzle 10b for a suitable time. Since it is sprayed on the surface of the tire 4 or the front road of the tire 4, the static friction coefficient (μs) or the motion friction coefficient (μk) is raised to 0.5 or more, which is the friction coefficient of the general road 16, so that the tire 4 and the automobile The slippage of (2) can be alleviated and the braking distance can be reduced to avoid collision with obstacles.

In addition, when the eye suddenly appears, when the motion friction coefficient signal of about 0.2 is input through the acceleration sensor 32, the control unit 12 is determined to slide on the snow, and thus outputs the discharge port 10 open signal immediately. Since the gate deceleration motor 26 and the screw deceleration motor 15 rotate, the gate 10 opens for a suitable opening area and for a suitable time, so that the anti-slip agent 8 contained in the reservoir 6 is appropriately moved to the front road of the tire 4. The frictional motion coefficient of the snow is increased to about 0.35 to prevent or alleviate slippage of the tire 4 and the vehicle 2, and of course, if the ejection amount or the ejection time ejection period of the anti-slip agent 8 is increased, the motion friction coefficient is increased. Can be increased to about 0.35 or more.

In addition, when the ice length suddenly appears, when the motion friction coefficient signal of about 0.15 is input through the acceleration sensor 32, the controller 12 determines that the ice is the ice road and outputs the discharge port 10 open signal, thereby reducing the gate speed reduction motor. Since the 26 and the screw reduction motor 15 rotate, the gate 10 opens for a suitable opening area and for a suitable time, so that the anti-slip agent 8 contained in the storage container 6 is ejected into the front road of the tire 4 by an appropriate amount. Since the motion friction coefficient of the ice road is increased to about 0.3, the slippage of the tire 4 and the vehicle 2 is prevented or mitigated, and the motion friction coefficient is increased by increasing the ejection amount of the anti-slip agent 8 or the ejection time ejection period. Can be increased above 0.3.

In addition, the current driving speed of the vehicle 2 input to the controller 12 is compared with the driving reference speed data previously stored in the memory 42, and the gate 13 when the input current driving speed exceeds the reference speed data. The amount of ejection and injection of the anti-slip agent 8 (8a) is controlled by increasing the opening area of the anti-slip agent (8) (8a) by making the opening area of the gate larger than the average, making the opening time of the gate (13) longer than the average, or controlling the pump amount and the operating time of the electromagnetic pump (14a). By increasing in proportion to the running speed of (2), the non-slip agents 8 and 8a that are ejected and sprayed are averaged per unit area of the road surface, and thus the motion friction coefficient of the road surface is also averaged.

In addition, when the vehicle 2 slides while driving down a slope such as a downhill road or an uphill road, the slope detection data or the uphill slope data are inputted to the controller 12 by the tilt sensor 34 to the memory unit 42. When the downhill slope data and the uphill slope data that are input are out of the reference slope data, the control unit 12 determines that the vehicle 2 slides on the slope, and the anti-slip agent according to the state of the road surface is compared. (8) (8a) is selected, and the amount of ejection and injection of the anti-slip agent (8) (8a) is increased or decreased from the flat road to compensate for the error due to the change in acceleration.

That is, when the friction coefficient of the flat road is 0.5, the acceleration decreases to about 0.3 on the downhill road by about 0.2. On the contrary, the acceleration rises about 0.2 to about 0.7 on the uphill road. In view of the fact that a mistake is made in the determination of the road condition, the type of the anti-slip agent (8) (8a) is selected, and the amount of injection and the injection amount of the anti-slip agent (8) (8a) is added or subtracted to compensate for the error. 2) is prevented from slipping on the ramps.

In addition, when the road with the snow road or ice 16a and the road with the snow road or the ice 16a appear alternately (section section), the tire section sensor 30 and the acceleration sensor 32 detect the section section slip. Since the output signal of the discharge port 10 is outputted every time, slipping of the automobile 2 is prevented.

On the other hand, if the snow 2 or the ice (16a) disappears, the vehicle 2 runs normally without slipping, if the motion friction coefficient is returned to the original value and the braking signal is not input, the anti-skid device of the present invention is stopped (OFF), the control unit ( 12) outputs the discharge signal of the discharge port 10 and the stop signal of the electronic pump 14a by determining that the vehicle is in a normal driving state, and thus, the ejection or injection of the non-slip agent 8 or 8a is blocked.

In addition, the anti-slip agent (8) (8a) will be gradually consumed by use, but since the consumption sensor 22 is installed inside the reservoir (6) (6a), the consumption amount of the anti-slip agent (8) (8a) or Since the remaining amount is displayed on the display unit 24 installed near the driver's seat panel through the control unit 12, the remaining amount (consumption amount) of the anti-slip agent 8 (8a) can be easily visually checked, and the anti-slip agent (8) (8a) is If it is determined that the shortage will be supplemented through the cover 20.

Opening the lid 20 of the reservoir (6) (6a) in order to replenish the anti-slip agent (8) (8a), so that it can be cumbersome, by installing an auxiliary reservoir in the empty space of the car (2), for example, the trunk To store a large amount of the non-slip agent, the auxiliary reservoir and each reservoir (6) (6a) is connected to the supply pipe, in the middle of the supply pipe is provided with a pump or a back sulfur under the control of the control unit 12, the anti-slip agent (8) The anti-slip agent 8 (8a) may be supplemented and supplied to the reservoirs 6 and 6a in which (8a) is exhausted.

In the present invention, by using the operation button 40a connected to the setting unit 40, the ejection cycle of the anti-slip agent (8) (8a) and the function setting and deactivation, etc., and if necessary, the operation button (40a) It is also possible to achieve the present invention by manual operation.

In addition, A.B.S. When the anti-skid device of the present invention is installed in a vehicle equipped with a brake, the slipper 8 and 8a are ejected at the same time as the slipper is prevented from slipping, and the steering wheel can be operated even in such a state, thereby preventing a large accident. have.

As described above, according to the present invention, when a vehicle driving on a road suddenly appears on a general road, an icy road, and an ice road or snow, the front of the tire (wheel) is generated when the vehicle slips under the brake pedal. Since the anti-slip agent is ejected to increase the friction coefficient of the road surface, the vehicle is prevented from slipping from the general road, freezing road and ice road or snow road.

Also, in the present invention, A.B.S. If the anti-skid device of the present invention is installed in a vehicle equipped with a brake, the steering wheel can be operated even during braking or slipping.

In addition, according to the degree of inclination of the slope such as downhill or uphill, the friction coefficient decreases or increases as compared to the general flat road, and an error occurs in the acceleration signal detected by the acceleration sensor. By selecting the type of the anti-slip agent according to the road surface state, and by adding or subtracting the amount and the injection amount of the anti-slip agent to compensate for the friction coefficient error, it is possible to prevent the vehicle from slipping on the slope.

Claims (3)

When a car driving on a road suddenly brakes on a road with water, including a general road, a freezing road, an ice road, or a snowy road due to snowfall, the car slips due to deterioration of driving inertia and road surface friction coefficient while the tire is stopped. Anti-slip agent is automatically sprayed to the front of the tire directly to the ground to increase the coefficient of friction on the road to prevent the car from slipping. Storage bins 6 and 6a having lids 20 are respectively provided on the front surface of the tire 4 of the automobile 2 to store the anti-slip agent 8 and 8a, and the outlets connected to the control unit 12. A discharge pipe 10a provided with a closing device 14, an injection nozzle 10b, and an electromagnetic pump 14a is respectively installed in the lower part of the reservoirs 6 and 6a, and the tire 4 is input to the control unit 12. The tire stop sensor 30 for detecting the stop of the vehicle, the acceleration sensor 32 for detecting the road surface condition or the degree of road friction when the vehicle 2 is slipped, and the anti-slip agent 8 (8a) by detecting the inclination of the incline. Inclination sensor 34 for compensating the selection of the friction coefficient and the friction coefficient error, respectively, connecting the driving speedometer 36 to the input of the control unit 12, and the braking detection sensor 38 to the input of the control unit 12. (2) 8 (8a) is selectively selected according to the road surface condition and the slope of the road when the car 2 running on the road slips on the road. Equivalent to extrusion and injection of a car, characterized in that to prevent slipping of the vehicle slipping prevention device. 3. An anti-skid device for an automobile according to claim 2, wherein the steering wheel is steered by installing the anti-skid device of the present invention on an automobile equipped with an A.B.S brake.