KR200229854Y1 - Driving status indicator of car - Google Patents

Abstract

The present invention is a display device for displaying the driving state of the vehicle using the light emitting means, a flashing switch for opening and closing the power supply to the light emitting means, and controlling the opening and closing cycle of the flashing switch according to the size of the deceleration of the vehicle A variable period control signal generator for generating a control signal for supplying the flashing switch to the flashing switch, and when the deceleration of the vehicle is greater than or equal to the first reference value, the light emitting means blinks only for a predetermined time according to the opening / closing operation of the flashing switch. And a first deceleration detector for supplying power, and continuously supplying power to the light emitting means when the deceleration magnitude of the vehicle is greater than or equal to the second reference value, so that the light emitting means continuously blinks according to the opening and closing operation of the flashing switch. A driving state display apparatus for a vehicle comprising a second deceleration detector.

Description

Driving status indicator of car

1 is a cross-sectional view showing an example of a deceleration detection device of the present invention as a simplified component.

2 is a cross-sectional view showing another example of the deceleration detection device of the present invention as a simplified component.

3 is an electronic circuit diagram of a driving state display apparatus of a vehicle of the present invention.

The present invention relates to a vehicle driving state display device for preventing a subsequent collision by informing the driving state of the vehicle to the rear.

The driving state display device of the vehicle currently being used is to turn on the brake light on the rear of the vehicle when the vehicle's foot brake is activated to inform the driver of the vehicle behind the vehicle's foot brake.

In addition, some types of brake lights are automatically flashed at regular intervals when the foot brake is operated (the light is turned on and off).

However, since the brake lighting method or device is operated by a switch connected to the vehicle's foot brake, the brake light is displayed by detecting the operation of the foot brake, or more accurately, the foot brake lever being moved more than a predetermined interval. However, it does not indicate the state of the deceleration of the car (the opposite of acceleration, or negative acceleration) or the emergency stop state, nor does it indicate the magnitude of the deceleration.

It is true that the driver in the rear knows the foot brake operation status of the vehicle ahead to help drive safely.However, even if the brake is slightly applied when the vehicle is going downhill, the vehicle is not actually decelerated by the acceleration of gravity. However, in some cases, the brake lights are turned on and the brakes are not turned on because the foot brakes are not stepped on even when the vehicle is braked and the vehicle is actually decelerating. For example, when the front vehicle is completely stopped by an accident or a collision, the brake light itself is not turned on, so there is a high risk of crashing. In fact, in the misty areas, many frontal collisions are occurring due to the short field of view.

In order to prevent such a collision accident, it is necessary to accurately inform the rear vehicle of the driving condition of the front vehicle, but until now, nothing has been developed to satisfy this need.

The object of the present invention is to detect the deceleration actually applied to the car, unlike the brake lamp lighting method, which is conventionally used to satisfy this need, and if the magnitude of the deceleration is below a certain value, the indicator is decelerated only for a certain time. If the flashing is proportional or inversely proportional to the size, and the deceleration is greater than a certain value, that is, in case of a sudden stop or a collision accident, the indicator light keeps blinking so that the driving condition of the vehicle ahead can be increased. It is to provide a device that can be determined.

In the present invention, the display device for displaying the driving state of the vehicle at the rear, the flashing switch for opening and closing the power supplied to the light emitting means, and generates a control signal for controlling the opening and closing cycle of the flashing switch according to the size of the deceleration Variable period control signal generator for supplying the flashing switch to the flashing switch, and when the magnitude of the deceleration of the vehicle is equal to or greater than the first reference value, power is supplied to the light emitting means for a predetermined time. A first deceleration detector for causing only a blink and a second for causing the light emitting means to blink continuously according to the opening / closing operation of the flashing switch by supplying power to the light emitting means continuously when the deceleration magnitude of the vehicle exceeds the second reference value. It includes a deceleration detector.

The first deceleration detector is connected to a first control switch for connecting a power supply to a flashing switch under the control of the control electrode, and is connected to the control electrode of the first control switch, and charges to charge and discharge when a voltage is applied. A charging means and a first deceleration switch for connecting the power supply voltage to the charge charging means when the deceleration becomes equal to or greater than the first reference value, wherein the charge charging means includes one end of the first deceleration switch and the first control switch. A variable resistor for connecting the control electrodes of the capacitor, a capacitor for connecting the control electrode to the ground, and a resistor for connecting one end of the first deceleration switch to the ground.

The second deceleration detector includes a second control switch that continuously connects the power supply to the flashing switch when a control signal is applied to the control electrode once, and controls the power supply voltage when the deceleration exceeds the second reference value. And a second deceleration switch for connecting a control signal (active signal) to the electrode.

The first deceleration switch is installed so that the inertial body coupled to the shaft and the spring can move a certain distance while being guided to the shaft when deceleration occurs, and is configured to be electrically connected to the first contact point and the inertial body installed in the moving passage of the inertial body. The second deceleration switch is configured to be electrically connected to the second contact point and the inertial body installed in the moving passage of the inertial body.

The variable control signal generator includes a square wave generator and varying means for varying the period and duty ratio of the square wave generator by a deceleration magnitude. The varying means may be a variable impedance element.

An embodiment of the present invention will be described with reference to the drawings.

The present invention has a flashing switch 12, a variable period control signal generator 20, a first deceleration detector 30 for opening and closing the DC power supplied to the light emitting means 10 as shown in FIG. A second deceleration detector 40 is included.

The light emitting means 10 may be used as a light bulb or an LED. In addition, any device capable of emitting light and projecting to the rear may be used.

The flashing switch 12 is a switch in which on and off is repeated by the control signal CS. In this figure, the MOS transistor is illustrated. In addition, various switching elements such as various transistors, phototransistors, lead switches, triacs, electronic relays, etc. Can be used.

The variable period control signal generator 20 generates a control signal CS for controlling the opening / closing period of the flashing switch 12 according to the magnitude of the deceleration, and supplies it to the flashing switch 12.

When the magnitude of the deceleration of the vehicle is greater than or equal to the first reference value, the first deceleration detector 30 supplies power to the light emitting means 10 for a predetermined time so that the light emitting means has a predetermined time according to the opening / closing operation of the flashing switch. Flash only for a while.

The second deceleration detector 40 continuously supplies power to the light emitting means when the deceleration magnitude of the vehicle is greater than or equal to the second reference value so that the light emitting means continuously blinks according to the opening / closing operation of the flashing switch 12. do.

The first deceleration detector 30 is connected to the first control switch 32 for connecting the power to the flashing switch 12 under the control of the control electrode 31, and the control electrode of the first control switch 32, And a charge charging means 33 for charging and discharging the electric charge when a voltage is applied, and a first deceleration switch 34 for connecting the power supply voltage to the charge charging means when the deceleration becomes equal to or greater than the first reference value. .

The charge charging means 33 includes a variable resistor 35 connecting between one end of the first deceleration switch 34 and the control electrode 31 of the first control switch 32, and grounds the control electrode 31. Alternatively, a capacitor C1 36 is connected to one side of the power supply and a resistor 37 is connected to one end of the first deceleration switch 34 to ground.

Here, the main current paths (source and drain) of the first control switch may be provided between the light emitting means and the -electrode or may be connected between the light emitting means and the flashing switch.

Although the MOS transistor is illustrated in this drawing as the first control switch, many other switching elements such as various transistors, phototransistors, lead switches, triacs, electronic relays, and the like can be used.

The second deceleration detector 40 includes a second control switch 42 which continuously connects power to the flashing switch 12 when a control signal is applied to the control electrode 41 once, and a deceleration rate is a second reference value. In this case, the power supply voltage includes a second deceleration switch 44 which supplies a control signal to the control electrode of the second control switch 42.

Although the second control switch also exemplifies the SCR device in this figure, many switching elements such as various flip-flops, latches, lead relays, and electronic relays can be used.

The variable control signal generator 20 includes an odd number of inverters 21 and variable signal delay means 24 whose magnitude is changed by deceleration between the front end output and the rear end input of the inverter. The third control switch 26 and the impedance element 27 are connected in series and connected to both ends of the variable signal delay means, and the control electrode of the third control switch 26 is connected to the second deceleration switch and the resistor. In this case, the deceleration is turned on when the magnitude of the deceleration becomes the second reference value so that the delay is shorter than the time for the variable signal delay means 24 to delay the signal when there is no deceleration. This causes the light emitting means to flash to the same extent as when the deceleration was the greatest even when the vehicle was stopped due to an emergency stop or an accident.

Although the third control switch also exemplifies the SCR device in this drawing, many switching elements such as various flip-flops, latches, lead relays, and electronic relays can be used.

As the variable signal delaying means 24, a variable inductance element, a variable capacitance element, or a variable resistance element, which are variable reactance elements, may be used.

In addition to the present embodiment, the variable control signal generator may include a square wave generator and change means for changing the period and duty ratio of the square wave generator by the magnitude of the deceleration. As a square wave generator, a monostable multivibrator, a low frequency oscillator, a feedback amplifier, or the like may be used. Alternatively, a variable impedance element may be connected to an oscillator circuit to change a period and a duty ratio. In addition, it may be configured using a computer as described in 1993 Patent Application No. 16319, which is already disclosed as a prior application of the inventors, or may be used to adjust the cycle of on / off using a trigger element, variable voltage A generator, variable period flashing means, or the like may be used.

1 and 2 illustrate a structure in which a first deceleration switch, a second deceleration switch, and a variable impedance element are formed together.

First, referring to FIG. 1, an inertial body 5 coupled to the shaft 3 and the springs 6 and 7 is installed to move a certain distance while being guided to the shaft 3 when the deceleration occurs. The first contact point 1 and the second contact point 2 are provided in the moving passage of the inertial body, and are insulated from each other while maintaining a constant gap with the inertial body, and the conductor cylinder is formed so that its adjacent area is variable. When the inertial body is a cylinder, the inertia body has a form corresponding thereto if the inertia body is another form. As shown, the contact area is positioned so that the capacitance is greatest when the inertia is positioned in a balanced position by the spring force.

The first contact is a spring made of a conductor and is mounted on the case at a relative position as shown. Better to be able to adjust the installation position.

These shafts 3, springs 6 and 7, the first contact point 1, the second contact point 2, the conductor cylinder 4 and the like are all provided in the case 8. Only a part of this case is shown.

FIG. 2 shows a structure in which the cylindrical coil 4 'is provided in place of the conductor cylinder 4 in the mechanism of FIG. All reference numerals are marked with '' to distinguish them from FIG. 1, but their functions are the same.

As shown in FIG. 1 (b), the inertial body 5 and the first contact point 1 form the first deceleration switch 34. When the inertial body is moved due to the deceleration, it comes into contact with the spring 1. The inertia may be a conductor or may be a magnetic body such as another ferrite core, but the inertia causes the electrical contact between the contact portion and the shaft in contact with the contact. Otherwise, the inertia contact portion and the spring 7 may be electrically connected. Therefore, the electric passage is made electrically through the path of the first contact point 1 → the inertia body 5 → the shaft 3 and the spring 7 → the shaft end portion. As also shown in this case, when the inertial body is located in a balanced position by the spring force is placed so that the coupling of the inertial body and the coil so that the inductance is the largest. The second deceleration switch 44 includes the second contact point 2 and an inertial body. The electrical passage consists of the path of the second contact point (1)-> inertia (5)-< / RTI > shaft (3) and spring (7)-shaft end portion.

The inertial body may be produced by attaching a special conductor to a portion where the first contact point and the second contact are in contact, or the inertial body may be made of a conductor.

The variable capacitor which is the variable delay means 24 is comprised using the inertial body 5 and the conductor cylinder as two electrodes. The electrical connection at the capacitor electrode consists of a conductor cylinder 4: an inertial body 5 → shaft 3 and a spring 7 → shaft end with an electrical passage in the path.

2 is configured in the same manner, but the variable inductor, which is a variable delay means 24, consists of an inertial body 5 and a cylindrical coil 4 '. The inductance of the cylindrical coil is changed by the inertia. For this purpose, an inertial body made of ferrite may be used.

In the operation of the deceleration switch and the variable delay means configured as described above, when the vehicle moves in the direction of the arrow and the deceleration occurs, the inertial body 5 moves in the direction of the arrow over the spring force. The greater the deceleration, the greater the movement of this inertial body. When the magnitude of the deceleration reaches the first reference value, the first contact point and the inertial body come into contact with each other. That is, the first deceleration switch is closed.

When the deceleration is larger and the inertial body comes into contact with the second contact point, the second deceleration switch is closed.

When the deceleration occurs, the inertia moves, so the capacitance of the variable capacitor decreases. The larger the deceleration, the smaller the capacitance. In the variable inductor, when the inertia moves, the inductance decreases. In this case, the inductance may be increased depending on the material of the inertia, but the paper used is reduced.

As in the present embodiment, it is convenient to have a structure in which the first deceleration switch, the second deceleration switch, and the variable impedance element are formed together, but these switches may be separately configured.

Looking at the overall operation of the present invention, first, when the power of the vehicle is applied to the +,-terminals, the variable period control signal generator generates a control signal to turn on and off the flashing switch, but power is supplied to the light emitting means and the flashing switch. Since the light emitting means does not emit light.

When the vehicle is stopped, the inertial body 21 stops at a balanced position by two spring forces. When the vehicle moves forward, the inertial body moves in the opposite direction of the arrow. Does not work at all.

When the vehicle moves forward and brakes, the vehicle has a force that moves in the direction of the arrow due to the inertia of the inertia, which counteracts the force of the springs 6 and 7 and moves the inertia according to the magnitude of the inertia. This inertia increases with the magnitude of the deceleration, so if the car running at high speed suddenly brakes or causes a momentary collision, the inertia force becomes very large.

Thus, when the size corresponds to the first reference value, the first contact point and the inertial body come into contact with each other to turn on the first deceleration switch.

When the first deceleration switch is turned on, the + power source turns on the first control switch while charging the capacitor 36 through the variable resistor 35. When the first control switch is turned on, a current flows in the main current path of the light emitting means and the flashing switch so that the light emitting means blinks.

At this time, the flashing speed of the light emitting means varies depending on the control signal of the variable period control signal generator. If the deceleration is large, the inertia is moved a lot, so that the capacitance of the variable capacitor is reduced, or the inductance of the variable inductor is small, so that the variable period control signal is reduced. Since the delay of the signal flow in the oscillation passage of the generator becomes small, the light-emitting body blinking speed of the light emitting means is increased. So a warning is given to the rear vehicle.

If the first deceleration switch is on for a long time, a lot of charge is charged, and if a lot of charge is charged, it takes a long time to discharge through the resistor, and thus, the on time of the first control switch becomes long. The charge rate and discharge rate of the electric charge are controlled by the variable resistor 35.

Next, when the vehicle in normal operation suddenly brakes or stops due to a sudden accident, the deceleration of the vehicle exceeds the first reference value and reaches the second reference value, and the second contact point and the inertial body come into contact with the second deceleration. The switch is closed. Then, the SCR is turned on by applying a voltage to the trigger electrode (control electrode) of the SCR. Then, current is supplied to the light emitting means so that light emission flashes. The blinking speed at this time may be set to the maximum value. This setting may be performed by adjusting the impedance of the impedance element connected in parallel with the variable delay means 24 so that the delay is the shortest. In this emergency, the second deceleration switch is operated. As a result, since the third control switch is turned on, the delay time is the smallest and the blinking speed is maximized. Since the SCR is continuously turned on once, the third control switch is continuously turned on using the SCR, so the blinking speed is maximized and continues to operate, and the operation continues until the manual stop.

Thus, even in the event of an accident, the driver is distracted, but warning signs to prevent rear collisions continue, so that a series of multiple collision accidents can be prevented.

In addition to the embodiments described above, it can be easily realized by those skilled in the art that the embodiments embodying the technical idea of the present invention can be listed.

According to the present invention described above, up to now, it is possible to immediately warn the dangerous situation in the rear in addition to displaying the foot brake operation, which is greatly helpful for accident prevention and safe driving.

Claims (9)

A display device for displaying a driving state of a vehicle using light emitting means, comprising: a flashing switch for opening and closing a power supply to a light emitting means, and a control signal for controlling the opening / closing period of the flashing switch according to a deceleration magnitude of the vehicle. And a variable period control signal generator for supplying the flashing switch to the flashing switch and supplying power so that the light emitting means blinks only for a predetermined time according to the opening / closing operation of the flashing switch when the magnitude of the deceleration of the vehicle exceeds the first reference value. A first deceleration detector, and a second power supply for supplying power to the light emitting means continuously when the magnitude of the deceleration of the vehicle is equal to or greater than a second reference value, so that the light emitting means continuously blinks according to the opening / closing operation of the flashing switch. Driving state display device of a vehicle comprising a deceleration detector. The control apparatus of claim 1, wherein the first deceleration detector is connected to a first control switch for connecting a power supply to the flashing switch under control of a control electrode, and is connected to a control electrode of the first control switch. And a first deceleration switch for connecting a power supply voltage to the charge charging means when the deceleration becomes equal to or greater than the first reference value. The method of claim 2, wherein the charge charging means, a variable resistor for connecting between one end of the first deceleration switch and the control electrode of the first control switch, a capacitor for connecting the control electrode to the ground, and the first Driving state display device of the vehicle characterized in that it comprises a resistor for connecting one end of the deceleration switch to ground. The control apparatus of claim 1, wherein the second deceleration detector comprises: a second control switch for continuously connecting power to the flashing switch when a control signal is applied to a control electrode once; And a second deceleration switch for connecting an active signal to a control electrode of the second control switch. According to claim 2 or 4, wherein the first deceleration switch, the inertial body coupled to the shaft and the spring is installed so as to be able to move a certain distance while being guided to the shaft when the deceleration occurs, installed in the moving passage of the inertial body The first contact point and the inertial body is configured to be in electrical connection, the second deceleration switch, the driving state display of the vehicle, characterized in that configured to be in electrical connection to the second contact and the inertia installed in the passage of the inertial body Device. 2. The vehicle driving apparatus according to claim 1, wherein the variable control signal generator comprises an odd number of inverters and variable signal delay means whose magnitude is changed by deceleration between the front end output and the rear end input of the inverter. Status display device. 7. The variable control signal generator of claim 6, wherein the variable control signal generator further connects a third control switch and an impedance element in series and is connected to both ends of the variable signal delay means. When it is turned on to drive the display state of the vehicle characterized in that to shorten the time delayed by the variable signal delay means. The apparatus of claim 1, wherein the variable control signal generator comprises a square wave generator and change means for changing the period and duty ratio of the square wave generator by a deceleration magnitude. The driving state display apparatus of claim 8, wherein the change means uses a variable impedance element.