KR0137315B1 - Head light auto on/off device of a car - Google Patents

Abstract

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Description

Headlight auto flasher of car

Fig. 1: Yabusashi diagram of an analog tachometer.

2 is a plan view of the detector of the present invention.

3 is a circuit diagram of an embodiment of the present invention.

4 is a circuit diagram of another embodiment of the present invention.

5 is a circuit diagram of another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

2: Spring cable 4: Rotor

6: indicator needle 8: display scale

10: spiral spring 12: stop

14: protrusion 16: fixed terminal

18: movable terminal 20: shaft

22: support piece 24: comparative amplifier

Ry: Relay B: Capacitor

L: Headlight T, Ta: Delay timer

SW1: Power switch SW2: Detector

SW3: Headlight operation switch SW5: Foot brake switch

SW6: Handbrake switch D1, D2: Diode

Pl: Photo Interrupt TD: Light Emitting Device

RT: Light receiving element

According to the present invention, the headlights of an automobile can be automatically turned on and off. Specifically, the conduction lamp is automatically turned off between stops of the vehicle and the headlights are automatically turned on between driving of the vehicle. When the braking signal by the brake switch (SW5) and the SW6 is simultaneously input, the conduction lamp (L) is delayed off, and when both signals are not input or only one signal is input, the headlight (L) is turned on immediately. will be.

In general, when stopping at a traffic light, pedestrian crossing, intersection, crossing, etc. while driving a car at night, the headlights are turned off so that there is no forward light. When starting, the headlights are turned on to secure the driving field.

Conventional cars are very inconvenient because they manually operate the headlights by turning them on and off, and they also cause troubles for safe driving, and they operate on the city streets where traffic pauses such as traffic lights, intersections, crosswalks, and crossings are relatively high. Inconvenience caused by manual operation is aggravated, and in the case of a female driver, a novice driver and a disabled driver, this inconvenience is further increased.

On the other hand, speedometers that display the speed of a car include a digital speedometer that displays the speed in numbers or graphs, an analog speedometer that displays the main speed at a rotation angle, and a compound speedometer in which these are mixed. In the case of the speedometer, one side of the spring cable 2 is geared to the gearbox (not shown in the figure) as shown in FIG. 1, and the other side of the spring cable 2 is connected to the speedometer to reduce the speed in proportion to the traveling speed. The other side of the spring cable (2) is connected to the speedometer so that the traveling distance is displayed while the odometer rotates, and the indicator (4) fixed to it while the rotor (4) rotates at an angle proportional to the traveling speed ( 6) The running speed is indicated by indicating the display scale 8 of this speedometer.

In the above, the rotor 4 to which the instruction needle 6 is fixed is installed so as to rotate within an angle range in which one rotation is not possible, and rotates clockwise in proportion to the increase in the traveling speed, and at the time of deceleration of the traveling speed. There is a spiral spring (10) to rotate in a counterclockwise direction to return to, the stopper (12) protrudes on one side of the body of the speedometer and the rotor (4) is in contact with the stopper (12) In the stationary state (0km / h) where the traveling piece 14 is formed so that the traveling speed of the vehicle is not formed, further rotation is prevented while the projecting piece 14 of the rotor contacts the stop piece 12, and the indicating needle 6 ) Indicates 0 km / h on the display scale 8.

As described above, the stop piece 12 and the protruding piece 14 are spaced apart during the main life of the vehicle as described above, and the stop piece 12 and the protruding piece 14 contact each other while the stop piece 12 is in contact with each other. ), But the stop piece (12) and the protruding piece (14) is in contact with the stop, the headlight is turned off, and the stop piece (12) and the moving piece (14) is spaced apart from the car If the headlight is turned on when it is detected as driving, the brake switch (SW5) (SW6) is connected to one end of the stop piece (16) and the protrusion piece (18), and the stop signal and brake by the two terminals (16) and (18). When the braking signals by the switches SW5 and SW6 are simultaneously input, the headlight L is delayed off, and when both signals are not input or only one signal is input, the headlight L is turned on immediately. do.

Although there are some differences according to the vehicle type above, in the case where the stop piece and the protruding piece are made of a metal for preventing abrasion, when the conductive piece is made of a metallic material, it is used as a fixed terminal and a movable terminal as it is, and is a non-conductive metal In the case of an insulating material such as synthetic resin, the sensor may be configured by replacing it with a conductive metal or by applying a conductive material to the outer surface thereof.

On the other hand, if a car brakes at a high speed, even if the wheel stops, even if the wheel stops, the car slips due to the inertia and moves a certain distance. It is preferable to turn off the headlight after the elapse of time. For this purpose, an operation delay timer that can delay the operation time for several seconds between the switching part and the headlight or between the detector and the switching part can be turned off. do.

In addition, instead of the fixed terminal and the movable terminal, a photo-interrupt is installed on one side of the stopping piece so that the vehicle stops while the protruding piece of the rotor enters between the photo interrupts and the transmission light is blocked so that the vehicle is stopped. When the projecting light of the rotor is moved between the photo interrupts and the transmitted light is detected by the driving of the car, the vehicle is sensed as the driving of the car, and the car is stopped by connecting the comparison amplifier, the delay timer, and the headlight operation switch to one end of the photo interrupt. If it is detected as the headlights, if the car is detected as driving the headlights are delayed off, if the car is detected as driving the headlights may be turned on.

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

1 and 2 are a perspective view and a plan view of the present invention sensor (SW2) for detecting the driving and stop state of the vehicle, the stop piece 12 and the rotational opening of the speedometer in contact with each other when the vehicle is stopped and the speed is 0 km / h The protruding piece 14 is made of a conductive material so that the stop piece is the fixed terminal 16 and the protruding piece is the movable terminal 18.

The movable terminal 18 formed in the rotor 4 is grounded to the vehicle body through the shaft rod 20, the spiral spring 10 and the support piece 22 of the indicator needle 6 made of a conductive metal, and also has a gear. Since the ground is connected to the vehicle body through the spring cable 2 fixed to the box, the negative terminal power of the battery B is always supplied to the movable terminal 18 (when the vehicle is grounded (-)).

3 is a circuit diagram of the present invention, in which the movable terminal 18 of the detector SW2 having the fixed terminal 16 grounded (-) is connected to one terminal of the relay coil, and the other side of the relay coil. The terminal connects the positive terminal of the battery B, while connecting the power switch SW1 therebetween.

The movable terminal of the relay Ry is connected to the power switch SW1, and the fixed terminal of the relay Ry is connected to the power terminal of the natural timer T so that the operating power can be supplied and cut off by the natural timer T. The output terminal of the natural timer T, which is a contact B, is connected in parallel to the headlight L operation switch SW3.

The natural timer T can be set to a delay time within a few seconds to several tens of seconds through a control knob (not shown) exposed to the outside, and an appropriate natural time considering the inertia force is delayed to about 1 second to 2 seconds. In this case, the headlight L is turned off 1 to 2 seconds after the vehicle is determined to be stopped.

On the other hand, Figure 4 is a circuit diagram of another embodiment of the present invention, the brake switch is connected between the power switch SW1 and the other terminal of the relay (Ry) coil, when the brake is activated and the vehicle is completely stopped, the headlight (L) This delay was turned off.

That is, the power switch SW1 and the relay coil are connected in series between the foot brake switch SW5 and the forward diode D1 between the other terminals, and the hand brake parking switch SW6 and the forward diode D2 are connected in series. ) In series connection.

In this case, the headlight L is delayed off when one side brake SW5 or SW6 and the detector SW2 are turned on together. The other diode D2 prevents the hand brake indicator HL from turning on when the foot brake switch SW5 is turned on.

In the case of the above circuit, even if the stationary vehicle does not start, when the brake is released for starting, the brake switch SW5 and SW6 are turned off and the headlamp L is turned on immediately. It is possible to identify the front field of view before departure and the presence or absence of obstacles, and the effect is the same even when the detectors SW2 and the brake switches SW5 and SW6 are installed in series.

5 is a circuit diagram of another embodiment of the present invention, in which the fixed terminal 16 of the detector SW2 and the movable terminal 18 are replaced with a vehicle using a photo-interrupt (Pl). After detection, the headlight (L) can be turned on and off.

That is, when the vehicle is stopped by fixing and fixing the photo interrupter Pl at a proper position in the stopper 12 or the speedometer, the projection 14 of the opaque rotor becomes a photointerrupt light emitting element TD and a light receiving element RT. When the vehicle is driven, the transmission and reception of light are blocked, and when the vehicle is driven, the projecting pieces 14 of the rotor are transmitted between the light emitting device TD and the light receiving device RT to receive and receive light.

When the photo interrupt Pl has no signal input to the signal output terminal, a comparison amplifier (OP AMP: 24) for outputting a high signal is connected to the output terminal, and a delay timer Ta is connected to the output terminal of the comparison amplifier 24. The headlight L operation switch SW3 is connected in parallel to the output terminal of the delay timer Ta.

Unmarked symbol (Vcc) is operating power, (SW4) is tail light operation switch, (SW7) is off switch while driving, (TL) is tail light, (R1 ~ R3) is resistance, (VR) is variable resistor, (G) Is odometer driving gear, and (C) is condenser.

According to the present invention configured as described above, since the headlight operation terminal of the delay time T, which is the B contact, is in a conductive state when the power switch SW1 is not turned ON, the light switch SW7 is turned off, and as in the prior art, When the vehicle is running at night, the headlight L can be turned on and off while the tail light operation switch SW3 is manually turned on and off.In this state, like the conventional car, the operation switch SW3 is turned to the water at the time of a pause or departure. It is necessary to control the turning on / off of the headlight (L) by operating (ON, OFF), which is an obstacle to safe operation due to inconvenience and hassle.However, turning on the power switch (SW1) causes the turning on / off of the headlight (L). The automation eliminates the inconvenience and hassle of operating the manual switch (SW3), allowing the driver to concentrate on safe driving.

That is, when the power switch SW1, the light switch SW7 and the tail light switch SW4 are turned on, and the headlight operation switch SW3 is turned off, the headlight L is turned on by the detector SW2 and the relay Ry. The headlight L is turned on by the delay time T, which is a contact B, during the driving of the vehicle.

On the other hand, if you press the pedal of the foot brake to stop the vehicle by stopping elements such as stop lights, crosswalks, intersections, crossings, etc. The rotation of the spring cable 2 which is interlocked with the gear of the box is also stopped and the rotor 4 and the movable terminal 18 rotate counterclockwise, and the movable terminal 18 contacts the fixed terminal 16 which is a stopper. It stops, and the pointer 6 of the speedometer indicates 0 km / h.

At this time, in the exemplary embodiment of FIG. 3, (-) power is applied to both ends of the coil of the relay Ry through the fixed terminal 16 and the movable terminal 18 of the detector SW2, and through the power switch SW1. Since the positive power is applied and excited, the movable terminal of the relay Ry and the fixed terminal are turned on so that the operating power is supplied to the delay timer T. When the set delay time elapses, the output terminal of the delay timer T is rejected and the headlamp The headlight (L) goes off until (L) is turned off and the car is detected as starting.

If the headlights are turned off due to the stop of the vehicle, turn off the lights as necessary in the above state.If the headlight operation switch (SW3) is turned on manually, the headlight (L) is turned on, and if the operation switch (SW3) is turned off again, It is reduced to auto on / off status. If you want to operate manually, turn off the light switch (SW7).

In addition, when the surrounding light is bright by a street light or the lamp is to be turned off temporarily when necessary, the light switch SW7, which is a contact B, may be turned off, and the light switch SW7 may be located at an appropriate position on the dashboard of the driver's seat. Install to make operation easier.

On the other hand, when the pause factor is eliminated and the vehicle is started, the spring cable 2 rotates and the rotor 4 and the movable terminal 18 rotate clockwise at an angle proportional to the rotation speed of the spring cable 2. Done.

Therefore, since the fixed terminal 16 and the movable terminal 18 are spaced apart from each other, the negative power is cut off by the relay Ry, so that the relay Ry is demagnetized and the fixed terminal and the movable terminal of the relay Ry fail. The operation power supply to the timer T is cut off, the output terminal of the delay timer T, which is the contact B, is turned on, and the headlamp is turned on immediately.

In another embodiment according to FIG. 4, when the driver presses the foot brake pedal to stop the vehicle in progress, the vehicle is decelerated and stopped. At the same time, the foot brake switch SW5 is turned on, and the brake light BL is turned on and the relay Ry is turned on. Positive power is supplied to the other terminal of the coil.

The fixed needle 16 of the detector SW2 and the movable terminal 18 are brought into contact with each other by conducting contact with the indicating needle 6 indicating 0 km / h due to the complete policing of the vehicle. When the power is supplied and the relay Ry is excited, the operation power is supplied to the delay timer T to delay the operation. When the output terminal of the delay timer T is turned off, the headlight L is turned off and the vehicle starts. It will last out until

In the above case, even when the vehicle is decelerated, the delayed lighting of the headlamp L is not achieved unless it is completely fixed (the rotation of the wheel is stopped).

When the vehicle stops and lights off due to the stop factor, when the stop factor is released and the foot brake pedal is released, the switch SW5 is turned off and the brake light BL is turned off and the relay Ry is deactivated. .

Therefore, the operation power is cut off by the delay timer T, and the output terminal of the delay timer T, which is the contact B, is turned on so that the headlamp L is immediately turned on and the vehicle starts.

When the vehicle starts, the movable terminal 18 of the detector SW2 and the fixed terminal 16 are spaced apart so that the relay coiling is cut off from the negative power supply to one terminal, but the foot brake switch SW5 Due to the failure of), since the relay Ry is already in the device state, it does not affect the operation of the relay Ry.

In the above case, the headlight (L) immediately before the start of the vehicle has the advantage of ensuring the front field of view and the presence or absence of obstacles, and even if the brake braking has the advantage that the headlight is delayed off as well.

In addition, if the hand brake (parking brake) is activated or deactivated instead of the foot brake, the flashing light of the headlamp L is achieved in the same manner as described above, and the foot brake is activated by the diode D2 to the switch SW6. This prevents current backflow of the handbrake indicator (HL) and prevents the backlight of the handbrake indicator (HL) .When the handbrake is operated, current backflow to the switch (SW5) is prevented by the diode (D1). This is avoided.

Even in the case described above, when the lamp is turned off for a short time while driving, it is achieved by turning off the switch SW7.

In another embodiment according to FIG. 5, when the pedal of the foot brake is pressed for stopping while driving, the brake light is turned on and stopped while the vehicle is decelerated.

When the vehicle is stopped, the rotation of the spring cable 2 also stops, so that the rotor 4 rotates counterclockwise by the spiral spring 10 while the stop piece 12 and the protruding piece 14 come into contact with each other to indicate the needle 6 ) Rotation is suppressed, indicating 0 km / h.

On the other hand, the protruding piece 14 of the opaque rotor is stopped by the stop piece 12 and enters between the light emitting element TD and the light receiving element RT of the photo interrupt Pl, thereby blocking the transmission and reception of the photointerruption. The output terminal of Pl goes low and the inverting terminal of the comparative amplifier 24 that is low active becomes low so that the output of the comparison amplifier 24 becomes high and the delay timer Ta, which is a contact B, is delayed. The headlight L is delayed off because the output is turned off during operation.

In this case, the resistors R1 and R2 are current limiting resistors, the other resistor R3 and the capacitor C are elements of the bias circuit, and the variable resistor VR connected to the non-inverting terminal is connected to the comparison amplifier 24. For reference voltage setting.

On the other hand, when the stopping factor is released and the foot brake pedal is released, the vehicle starts and thus the spring cable 2 rotates in proportion to the starting and traveling speed of the vehicle, and the rotor and the protrusion 14 It rotates in a clockwise direction at an angle proportional to the rotational speed of the spring cable (2) to indicate the running speed.

Therefore, the protruding piece 14 is spaced apart from the stop piece 12 and is out of the gap between the light emitting element TD and the light receiving element RT. Since the port interrupt Pl is transmitted and received, the photo interrupt Pl output terminal becomes high. Then, the output of the comparison amplifier 24 is turned low, and the output of the delay time Ta, which is the contact B, is turned on so that the rolling head L is turned on.

When the headlight L lit by driving is turned off for a while as required, it is achieved by turning off the light switch SW7. In the case of manual operation as in the prior art, the light switch SW7 can be turned off. .

In the case of the embodiment of FIG. 5, unlike the sensor SW2 based on the contact, the contactless detection method without the contact can prevent a factor of contact failure or a chattering phenomenon.

The present invention realizes automatic turning on and off of the headlight L at the start and stop of a vehicle by braking signal of the brake or the speed signal by the detector SW2 and the photo interruption Pl or a combination of these two signals. The inconvenience of operation can be eliminated so that the user can concentrate on the safety operation, and it is very convenient for the female driver, the novice driver and the disabled driver.

In the present invention, when the headlight (L) is to be switched to manual operation, turning off the light switch (SW7) and the power switch (SW1) to prevent the automatic lighting and turning off the headlight (L) of operation switch (SW3) as in the prior art Manual operation is possible.

In the present invention, if the braking during high-speed driving, even if the rotation of the wheel is stopped, the car is advanced by the inertia force, but the off of the headlight (L) is delayed for 1 second to 2 seconds, so the risk of traffic accident is eliminated, the delay time is different depending on the vehicle type In consideration of the stopping distance and the braking distance, it is possible to adjust the delay knob (T) appropriately.In addition, if it is turned off at the same time as the stop, it can be mistaken as a signal to proceed with the opposite vehicle in the case of an intersection, This problem is also solved because the () off is delayed.

In the case of the rapid braking while the car is driving at a high speed of more than 90 km / h, the inertia force is eliminated even if the vehicle stops completely, even if the vehicle stops completely until the indicator needle 6 reaches the 0 km / h point on the display scale 8 ( Until the vehicle is detected as stopped, it takes 2 seconds to 3 seconds, so the headlight (L) is delayed off for 3 to 5 seconds, so the time for observing obstacles and surroundings is long. have.

As described above, the present invention has the effect of eliminating the trouble of manual operation because the headlights are automatically turned on and off at the start and stop of the vehicle.

Claims (1)

When the stop piece 12 of the vehicle speedometer is the fixed terminal 16 and the protruding piece 14 of the rotor is the movable terminal 18, when the two terminals 16 and 18 become conductive, the vehicle is sensed as a stop and the two terminals (16) (18) If the vehicle is turned off, the headlight (L) will be delayed off if the vehicle is stopped and the headlight (L) will turn on immediately. The brake switch SW5 (SW6) is connected to one end of the two terminals 16 and 18 so that a stop signal by the two terminals 16 and 18 and a brake signal by the brake switches SW5 and SW6 are provided. The headlight (L) is turned off when the input simultaneously, and if the input of both signals or only one signal is input, the headlight (L) is automatically turned on.