JPH0211462B2 - - Google Patents

Abstract

PURPOSE:To illuminate the advance direction and front direction of a car simultaneously for safety during travel at night by making the illumination direction of a lamp on the steering direction side variable together with the handle steering and making the illumination direction of a lamp opposite to the steering direction side fixed or smaller than that on the steering direction side. CONSTITUTION:The level condition of the electric pulse signal sent, when a handle is rotated clockwise or counter-clockwise from a neutral point, from output terminals 17, 18 of a photosensor 1 fitted to a slit disk interlocked with the handle is processed by an AND gate 26 of 27 of a processing circuit 2. Next, it is converted into a count value by an UP/DOWN counter 28 to select the output terminal of a decoder/driver 29. Then, a DC motor 39 is rotated, and the illumination direction of a lamp is changed in response to the steering direction and quantity. In this case, the DC motor 42 opposite to the steering direction is stopped. In addition, contact points of slide substrates 31, 42 on both sides are made asymmetric, and the deflection angle of the lamp opposite to the steering direction side is made smaller than that of the steering direction side, thus a wide illumination range can be secured.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention provides a vehicle with lighting means each provided on the left and right sides of the front of the vehicle,
The present invention relates to a cornering lamp system for a vehicle in which the irradiation direction of the lamp light means is varied in conjunction with steering wheel steering.

[Conventional technology]

Vehicles, especially automobiles, are equipped with headlights on the left and right sides of the front as lighting means for illuminating the front at night, but these headlights only illuminate the front of the vehicle in a fixed manner. When approaching a curve, etc., the direction in which the vehicle is traveling cannot be sufficiently illuminated. In other words, when cornering or the like, the vehicle is not sufficiently illuminated in the direction in which the vehicle is actually traveling, which may pose a danger.

To solve this problem, cornering lamp systems have been proposed in which the direction of the headlights is varied in conjunction with the steering wheel of the vehicle, and the direction of travel is illuminated. .

[Problem that the invention seeks to solve]

However, according to conventional cornering lamp systems, the illumination direction of the headlights installed on the front left and right sides is changed symmetrically in conjunction with steering wheel steering, so that the illumination direction is illuminated in the direction of travel. When driving on a winding road, a problem arises in that the front view that was previously visible suddenly disappears from view.

[Means for solving problems]

The present invention has been made in view of such problems, and the irradiation direction of the lighting means on the side in the steering direction is made variable in communication with steering wheel steering, and the irradiation direction of the lighting means on the side opposite to the steering direction is fixed. This is how it was done.

Further, the deflection angle in the irradiation direction of the lighting means on the side opposite to the steering direction is made smaller than the deflection angle in the irradiation direction of the lighting means on the side in the steering direction.

[Effect]

Therefore, according to the present invention, the lighting means on the steering direction side can illuminate the direction of travel, and the lighting means on the side opposite to the steering direction can illuminate the front direction of the vehicle.

〔Example〕

The vehicle cornering lamp system according to the present invention will be explained in detail below. FIG. 1 is a circuit diagram showing one embodiment of this cornering lamp system. In the figure, 1 is a photo sensor attached to a slit disk (not shown) linked to the handle, 2 is a processing circuit that processes the electrical signal sent out by this photo sensor 1, and 3 is a process sent out by this processing circuit 2. A headlight (not shown) installed on the front right side of the axle based on the signal (hereinafter referred to as the right lamp)
4 is a left lamp drive unit that drives a headlamp (hereinafter referred to as the left lamp), not shown, which is installed on the left side of the front of the vehicle, based on a processing signal sent from the processing circuit 2. , 5 is a DC power supply. The photo sensor 1 includes a first photo interrupter 13 consisting of a light emitting diode 11, a photo transistor ₁₂ and resistors R 1 and R ₂ , and a second photo interrupter consisting of a light emitting diode 14 , a photo transistor 15 and resistors R ₃ and R ₄ . The output terminal 17 of the photo interrupter 13 and the output terminal 18 of the photo interrupter 16 are connected to "1" as shown in FIGS. Pulsed electrical signals of the same waveform are generated, with alternating levels and "0" levels. In other words, by rotating the handle clockwise (clockwise) from the neutral point, a positive electrical signal centered at 0° will be turned counterclockwise (clockwise), causing the electric signal to change to 0°. An electric signal in the negative direction centered at .degree. is generated, and a indicates an electric signal generated at the output terminal 17, and b indicates an electric signal generated at the output terminal 18. The electrical signal generated at the output terminal 17 is 90 degrees ahead of the electrical signal generated at the output terminal 18, and when the handle is at the neutral point, that is, at 0 degrees in FIG. The generated electrical signal is at the falling or rising stage when changing from the "1" level to the "0" level, or from the "0" level to the "1" level, and the electrical signal generated at the output terminal 17 is "0". is in a level state.

On the other hand, the processing circuit 2 includes NAND gates 21, 2
2. Inverter 23, R/S flip-flop circuits 24, 25, AND gates 26, 27, UP/
It is composed of a DOWN counter 28 and decoders/drivers 29, 30, and R.S flip-flop circuits 24 and 25 are composed of OR gates 241, 242 and 251, 252 with negative logic inputs. The electrical signal generated at the output terminal 17 of the photo sensor 1 is input to one end of the NAND gates 21 and 22 and to the reset terminals 24r and 25r of the R/S flip-flop circuits 24 and 25. The electrical signal generated at the output terminal 18 of the
2 and the inverter 23. The electrical signal output from the inverter 23 is input to the other end of the NAND gate 21 and one end of the AND gate 27. Further, the outputs of the NAND gates 21 and 22 are input to the set terminals 24s and 25s of the R/S flip-flop circuits 24 and 25, and the outputs of the R/S flip-flop circuits 24 and 25 are input to the Q output terminals 24q and 25. It is designed to be input to the other ends of AND gates 26 and 27 via 25q. Then, the outputs of AND gates 26 and 27 are UP/DOWN.
The input is made to the up input terminal 28u and down input terminal 28d of the counter 28, and the up/down counter 28 is input to the input terminal 28u.
Alternatively, 28d increases or decreases the count value every time a "1" level signal is input, and outputs a digital signal corresponding to the count value to the input terminals of decoders/drivers 29 and 30 via output terminals 28A to 28D. 29A to 29D and 30A to 30D. Then, decoders/drivers 29 and 30 receive this digital signal and output terminals 29a to 29o.
A predetermined output terminal among the output terminals 30a to 30o is selected and its level is set to "0". That is, at point N in Figure 2,
The count value in the UP/DOWN counter 28 is set to zero, and at this time the decoders/drivers 29 and 30 select the output terminals 29h and 30h, and set only the levels of the output terminals 29h and 30h to "0". It is becoming more and more level. And UP/DOWN counter 28
From 29h to 29g, the output terminal becomes "0" level every time the count value increases by 1.
29f...30g from 29a and 30h, 30
f...30a and so on. Also, each time the count value in the UP/DOWN counter 28 decreases by 1 from zero, it becomes "0".
From 29h to 29i, 29
j...29o and 30h to 30i, 30j...
...It is designed to be gradually lowered to 30o.
In addition, in the countdown after the count-up or the count-up after the countdown,
It goes without saying that the output terminals at the "0" level are successively carried down or carried up to the adjacent output terminals. Output terminals 29a and 29b of the decoder/driver 29
are connected to the output terminal 2a of the processing circuit 2, 29c and 29d are connected to the output terminal 2b, 29a and 29f are connected to the output terminal 2c, and 29g to 29o are connected to the output terminal 2d. Also, the decoder/
Output terminals 30a to 30i of the driver 30 are connected to the output terminal 2e of the processing circuit 2, 30j and 30k are connected to the output terminal 2f, 30l and 30m are connected to the output terminal 2g, and 30n and 30o are connected to the output terminal 2.
h, respectively.

Thus, the output terminals 2a to 2d of the processing circuit 2 are connected to sliding contacts 34b to 34e that are in sliding contact with semicircular band-shaped conductor patterns 32 and 33 formed on the sliding board 31 of the right lamp drive unit 3. , the sliding contact 34a adjacent to the sliding contact 34b is connected to the positive polarity side of the DC power supply 5 via the coil 351 of the relay 35. In addition, the sliding contact 34
i is also connected to the positive polarity side of the DC power supply 5 via the coil 361 of the relay 36, and the coils 351 and 361 are connected to diodes 37 and 38 in parallel. The normally open/normally closed contacts 352 of the relay 35 and the normally open/normally closed contacts 362 of the relay 36 are connected to both connection ends of the DC motor 39, and when the relay 35 is energized, the normally open/normally closed contacts 352 of the relay 35 and the normally open/normally closed contacts 362 of the relay 36 are connected. The common terminal 352c of the normally closed contact 352 and the normally open contact terminal 352a are electrically connected, and the positive polarity side of the DC power supply 5 is connected to one end of the DC motor 39. Also, when the relay 36 is energized, the common terminal 36 of the normally open/normally closed contact 362
2c and the normally open contact terminal 362a are electrically connected, and the other end of the DC motor 39 is connected to the positive polarity side of the DC power supply 5. That is, the normally open and normally closed connection points 352 and 362 are normally connected to their common terminal 3.
52c and 362c and the normally closed contact terminals 352b and 362b are in a conductive state, and at this time both ends of the DC motor 39 are grounded. When DC power is supplied to the DC motor 39 through the normally open/normally closed contacts 352, the motor is connected to the lamp drive shaft 6.
is rotated clockwise (clockwise rotation in the figure), and as the lamp drive shaft 6 is rotated clockwise, the conductor patterns 32 and 33 are also rotated clockwise together with the sliding substrate 31. Further, when DC power is supplied to the DC motor 39 via the normally open/normally closed contacts 362, the lamp drive shaft 6 rotates counterclockwise, and as the lamp drive shaft 6 rotates counterclockwise, the conductor pattern 32
and 33 are adapted to rotate counterclockwise integrally with the sliding base plate 31. By rotating the lamp drive shaft 6 clockwise or counterclockwise, the direction of illumination of the right lamp installed on the right side of the front of the vehicle changes.By rotating the lamp drive shaft 6 clockwise, the right lamp The irradiation direction of the right lamp rotates to the right when viewed from the driver's seat, and the lamp drive shaft 6 rotates to the left, so that the irradiation direction of the right lamp rotates to the left.

On the other hand, the output terminals 2e to 2h of the processing circuit 2 are connected to the conductor patterns 42 and 4 of the left lamp drive unit 4.
The sliding contact 44 is connected to the sliding contacts 44e to 44h that are in sliding contact with the sliding contact 44h, and is adjacent to the sliding contact 44h.
i is connected to the positive polarity side of the DC power supply 5 via the coil 461 of the relay 46 . The positive polarity side of the DC power supply 5 is also connected to the sliding contact 44a via the coil 451 of the relay 45, and the DC motor 4
A normally open/normally closed contact 452 of the relay 45 and a normally open/normally closed contact 462 of the relay 46 are connected to both ends of the relay 9 . Then, when DC power is supplied to the DC motor 49 via the normally open/normally closed contacts 452,
The motor rotates the lamp drive shaft 7 clockwise to rotate the irradiation direction of the left lamp to the right, and when DC power is supplied to the DC motor 49 via the normally open/normally closed contacts 462, the drive shaft 7 is rotated to the left, and the irradiation direction of the left lamp is rotated to the left.

Next, the operation of the vehicle cornering lamp system configured as described above will be explained. That is,
Assume that the car is currently traveling straight and the steering wheel is at the neutral point (N in Figure 2).
point). At this time, the count value in the UP/DOWN counter 28 is zero, and the decoder/driver 2
9 and 30, only the output terminals 29h and 30h are at the "0" level. In other words, the output terminals 29a to 29g and 29i to 29o of the decoder/driver 29 and the output terminals 30a to 30g and 30i to 30o of the decoder/driver 30 are all at the "1" level, and the sliding of the right lamp drive unit 3 is The contacts 34b to 34d and the sliding contacts 44f to 44h of the left lamp drive unit 4 are at the "1" level. Therefore, the coils 351 and 361 of the right lamp drive unit 3,
Coils 451 and 4 of left lamp drive unit 4
61 is not energized and the DC motors 39 and 49 do not rotate. In other words, the irradiation directions of the right lamp and the left lamp are stopped facing the front at this time.

When the steering wheel is rotated to the right in such a state to start steering to the right, the electric signals sent by the photo interrupters 13 and 16 become "1" and "0" levels (point a in FIG. 2). As a result, the output of the NAND gate 21 changes from the "1" level to the "0" level, the R.S flip-flop circuit 24 is set, and the Q output terminal 24q becomes the "1" level. Further, steer to the right and
When point b in the figure is reached, the output terminals 17 and 18 of the photo sensor 1 both go to the "1" level, the two inputs of the AND gate 26 both go to the "1" level, and the up input terminal 28u of the UP/DOWN counter 28 goes up. A "1" level signal is input to the UP/DOWN counter, and the count value in the UP/DOWN counter increases by 1. As a result, the decoders/drivers 29 and 30 move up the "0" level signals that they had been sending out to the output terminals 29g and 30g and send them out. At this time, since the output terminals 29g and 30g are connected to the output terminals 2d and 2e of the processing circuit 2,
No power is supplied to motors 39 and 49.
Then, when you further steer to the right, photo sensor 1
output terminals 17 and 18 are "0" and "1"
level (point c in Figure 2), and the reset terminal 24r of the R/S flip-flop circuit 24 becomes "0".
level, the flip-flop is reset, and the Q output terminal 24q becomes "0" level, preparing for the next count. When point d in FIG. 2 is reached, the output of the NAND gate 21 changes from the "1" level to the "0" level, the R/S flip-flop circuit 24 enters the set state, and the Q output terminal 24q becomes "1" again. ” level, and when it reaches point e in FIG. 2, the output of the AND gate 26 becomes “1” level, and the UP/DOWN counter 28
The count value further increases by 1. As the count value increases, the decoders/drivers 29 and 30 raise the "0" level signals that had been sent out to the output terminals 29f and 30f, and send them out to the coil 351 of the right lamp drive unit 3 through a sliding contact. 34a, the conductor pattern 32, the sliding contact 34d, and the output terminal 2c. By energizing the coil 351, the common terminal 352c of the normally open/normally closed contact 352 and the normally open contact terminal 352a are brought into conduction, and the DC motor 39 rotates to rotate the lamp drive shaft 6.
rotates to the right. By this clockwise rotation of the lamp drive shaft 6, the irradiation direction of the right lamp moves clockwise, that is, in the steering direction, and the sliding board 31 slides to the right while bringing the sliding contacts 34a to 34i into sliding contact with the conductor patterns 32 and 33. Rotate. And the sliding contact 34
d separates from the conductor pattern 32, the energization of the coil 351 of the relay 35 is released, and the common terminal 352c of the normally open/normally closed contact 352
The normally open contact terminal 352a becomes non-conductive, and the power supply to the DC motor 39 is cut off. DC motor 3
9 rotates a little due to inertia and then stops, and the sliding board 31 stops with the sliding contact 34d arranged approximately in the center of the opposing gap 31a between the conductor patterns 32 and 33. On the other hand, the DC motor 49 is connected to the decoder/
Even if the driver 30 raises and sends out a "0" level signal from its output terminal 30f, the output terminal 3
Since the terminal 0f is connected to the sliding contact 44e, it does not rotate, and therefore the left lamp remains in a stopped state. Thereafter, in the same way, by continuing to steer to the right, the count value in the UP/DOWN counter 28 increases sequentially, the position of the "0" level signal sent out by the decoders/drivers 29 and 30 sequentially advances, and the DC motor 49 The DC motor 39 rotates intermittently while it remains stopped, and the irradiation direction of the right lamp moves clockwise in stages.

Next, the operation when the handle is rotated to the left from the neutral point will be described. That is, when steering to the left from point N in FIG.
The output terminals 17 and 18 of both become "1" level (point f in FIG. 2), the output of the NAND gate 22 becomes "0" level, the R/S flip-flop circuit 25 is set, and the Q output terminal 25q becomes "0" level. The level becomes "1". When point g in FIG. A "1" level signal is input to the down input terminal 28d, and the UP/DOWN counter 28 counts down the count value by one. Due to this countdown, the decoders/drivers 29 and 30 move up the "0" level signals that have been sent out to the output terminals 29i and 30i and send them out. When the point h in FIG. 2 is reached, both the output terminals 17 and 18 go to the "0" level, the R/S flip-flop circuit 25 is reset, and the Q output terminal 25q goes to the "0" level and the next Prepare for the count. When the point i in FIG. 2 is reached, the count value in the UP/DOWN counter 28 further counts down by 1, and the
The position of the “0” level signal sent by is output terminal 2.
Move down to 9j and 30j. This results in
The coil 461 of the left lamp drive unit 4 has a sliding contact 44i, a conductor pattern 43, a sliding contact 44f,
A current flows through the path of the output terminal 2f, and the common terminal 462c of the normally open/normally closed contact 462 and the normally open contact terminal 4
62a becomes electrically conductive, the DC motor 49 rotates, and the lamp drive shaft 7 rotates to the left. This counterclockwise rotation of the lamp drive shaft 7 moves the irradiation direction of the left lamp counterclockwise, and the sliding contact 44f separates from the conductor pattern 43, causing the coil 461 of the relay 46
The energization is released, the common terminal 462c of the normally open/closed contact 462 and the normally open contact terminal 462a become non-conductive, and the power supply to the DC motor 49 is cut off. As a result, the DC motor 49 rotates slightly due to inertia and then stops. On the other hand, the DC motor 39
Since the output terminal 291 that sends out the "0" level is connected to the sliding contact 34e, it does not rotate, and the right lamp remains in a stopped state. From then on, by continuing to steer left in the same way, the UP/DOWN counter 2
The count value at 8 sequentially decreases, the position of the "0" level signal sent by the decoders/drivers 29 and 30 sequentially decreases, and the DC motor 3
9 remains stopped, the DC motor 49 rotates intermittently, and the irradiation direction of the left lamp moves counterclockwise in stages.

In addition, in this embodiment, the operations in right steering and left steering from the neutral point were explained.
Even in the case of left steering after right steering, or right steering after left steering, UP/DOWN
It goes without saying that the count value in the counter 28 is sequentially counted down or counted up, and the irradiation direction of one lamp is changed while the other lamp is fixed according to this count value. In other words, when steering from right to left until reaching the neutral point, the left lamp is fixed and the direction of illumination of the right lamp changes, and when steering from left to right until reaching the neutral point, the left lamp is fixed. , the irradiation direction of the left lamp changes while the right lamp remains fixed. At this time, right steering and left steering in the right direction centering on the neutral point are defined as a right steering direction, and right steering and left steering in a left direction centering on the neutral point are defined as a left steering direction. In addition, in this example, the stepwise deflection angle of the irradiation direction of the right lamp and the left lamp is 10 degrees, so the right lamp has a maximum deflection angle in the right direction.
30 degrees, and the left lamp can be swung up to 30 degrees to the left. In order to obtain such a deflection angle, the sliding contacts 34b to 34e and the sliding contacts 44e to 44h are arranged at equal angular intervals, and the irradiation direction of the right lamp and the left lamp is tilted by 10 degrees in one step. There is sufficient spacing between the two.

As explained above, according to the cornering lamp system according to this embodiment, while the illumination direction of the lamp in the anti-steering direction is fixed to the front, the illumination direction of the lamp in the steering direction is varied in conjunction with the steering wheel steering, and This allows for a wider field of vision when cornering, and eliminates the problem of conventional cornering lamp systems where the front of the vehicle, which was previously visible, suddenly disappears from view. , improving safety when driving at night. In this embodiment, the irradiation direction of the right lamp and the left lamp is swung at equal angular intervals and by 10 degrees in one step, but the irradiation direction may be swung at unequal angular intervals. As shown, the swing angle of the lamp 8 may be configured to increase as it moves away from the center.
That is, in the figure, the stepwise deflection angle θ ₁ ,
θ ₂ and θ ₃ have a relationship of θ ₁ < α ₂ < θ ₃ , and the deflection angle θ ₁ ,
The relationship between θ ₂ , θ ₃ and vehicle speed is such that as the vehicle rotates through θ ₁ , θ ₂ , and θ ₃ , the steering angle of the vehicle increases and the vehicle speed decreases. In other words, since the speed near the center is higher than at θ ₂ and θ ₃ , fine light distribution is required and it is necessary to rotate at a small angle.

By the way, conventionally proposed cornering lamp systems that perform symmetrical operation on both sides have the advantage of increasing visibility in the direction of travel. Therefore, by switching between bilateral operation and unilateral operation according to the user's preference, road conditions, weather conditions, etc., the merits of both can be utilized and the system can meet more diverse needs. can be accommodated. FIG. 4 shows an embodiment of a cornering lamp system capable of switching between two-sided operation and one-sided operation. In this figure, the same reference numerals as in FIG. 1 indicate the same parts, and the explanation thereof will be omitted.
This cornering lamp system has a processing circuit 2 including a second UP/DOWN counter 201, AND gates 202 to 207, an inverter 208,
209, R/S flip-flop circuit 210,2
11, a changeover switch 212 is provided, and when the changeover switch 212 is off, that is, the first to fourth contacts 212a to 212d of the changeover switch 22 are
is in the open state, the AND gate 202,
A “1” level signal is input to one input terminal of 203, 206, and 207. Therefore,
UP/DOWN counters 28 and 201 are capable of up-counting and down-counting, respectively;
The right lamp and left lamp perform bilateral symmetrical operation.

On the other hand, when the changeover switch 212 is turned on, that is, the contact 212a of the changeover switch 212
When ~212d is closed, output terminals 29h and 3 of decoders/drivers 29 and 30
When 0h is at the "0" level, the R/S flip-flop circuits 210 and 211 are in the set state,
One input terminal of AND gates 203 and 202 becomes "0" level. Therefore, UP/
DOWN counter 28 only counts up,
The UP/DOWN counter 201 is in a state where it can only count down. When the output of the AND gate 26 reaches the "1" level in such a state, the UP/DOWN counter 28 counts up and the "0" level signal sent by the decoder/driver 29 reaches the output terminal 29g.
The R.S. flip-flop circuit 21
1 becomes the reset state. As a result, at the same time that one input terminal of the AND gate 207 becomes the "0" level, a signal of the "1" level is input to one input terminal of the AND gate 202.
The UP/DOWN counter 201 is in a state where it cannot count up or count down.
The UP/DOWN counter 28 is in a state where it can perform up-counting and down-counting. This state continues until the R/S flip-flop circuit 211 reaches the next set state, and therefore,
The decoder/driver 30 sends out a fixed "0" level signal from its output terminal 30h, and the decoder/driver 29 selects an output terminal according to the count value of the UP/DOWN counter 28,
Sends a "0" level signal. In other words, when steering the steering wheel in the right steering direction, only the direction of illumination of the right lamp changes while the direction of illumination of the left lamp is fixed to the front.

Furthermore, when the output terminals 29h and 30h of the decoders/drivers 29 and 30 are at "0" level,
When the output of the AND gate 27 reaches the "1" level, the UP/DOWN counter 201 counts down, and the "0" level signal sent from the decoder/driver 30 moves down to the output terminal 30i, and the R/S flip-flop circuit 210 enters the reset state. This makes ANDGATE 2
At the same time that one input terminal of AND gate 203 becomes "0" level, a "1" level signal is input to one input terminal of AND gate 203, and UP/
The DOWN counter 28 is in a state where it cannot perform up-counting or down-counting.
The DOWN counter 201 is in a state where it can perform up-counting and down-counting. This state continues until the R/S flip-flop circuit 210 enters the next set state. Therefore, the decoder/driver 29 sends out a fixed "0" level signal from its output terminal 29h to the decoder/driver 29. Driver 30 is UP/DOWN counter 201
Select the output terminal according to the count value in
Sends a "0" level signal. That is, when steering the steering wheel in the left steering direction, only the direction of illumination of the left lamp changes while the direction of illumination of the right lamp is fixed to the front.

In the above-mentioned embodiments (FIGS. 1 and 4), a cornering lamp system was described in which the direction of illumination of only the lamp on the steering direction side is changed during cornering. A so-called bilateral asymmetric operation may be performed in which the irradiation direction of the lamp on the opposite steering direction side is swung by an angle smaller than the oscillation angle of the irradiation direction of the lamp on the steering direction side. In other words, in a cornering lamp system that operates on one side, when driving around a corner with a small radius, the lamp on the side in the steering direction rotates by a large angle, so the illumination range and progress of the lamp on the side in the opposite steering direction, which illuminates the front, A dark area may occur between the irradiation range of the lamp on the steering direction side that illuminates the direction. Therefore, if the irradiation direction of the lamp on the side opposite to the steering direction is swung at a small angle that does not create dark areas, the irradiation range of the lamp on the side opposite to the steering direction can cover the dark area, improving safety. .

Furthermore, with the configuration shown in FIG. 6, it is possible to switch between bilateral symmetrical operation and bilateral asymmetrical operation in accordance with conditions such as the user's preference, road conditions, and weather conditions. That is, this cornering lamp system includes a frequency divider 22 in the processing circuit 2.
0 to 223, AND gates 224 to 231, inverters 232 to 235, OR gates 236 to 23
9, and when the changeover switch 212 is off, the AND gates 224, 226, 228, 2
A "0" level signal is input to one input of AND gate 225, 227, 229, 23.
Since a "1" level signal is input to one input of UP/DOWN counter 28 and 201,
The AND gate 26,2 is not divided into
7 is input, the UP/DOWN counters 28 and 201 each carry out both up-counting and down-counting as usual, and the right lamp and left lamp perform symmetrical operation on both sides.

On the other hand, when the changeover switch 212 is turned on, when the output terminals 29h and 30h of the decoders/drivers 29 and 30 are at "0" level, the R.
S flip-flop circuits 211 and 210 are set, and AND gates 225, 227, 22
A "1" level signal is input to one input of AND gates 224, 226, 22.
A "0" level signal is input to one input of 8,230. When the AND gate 26 sends out a "1" level signal from such a state, the UP/DOWN counters 28 and 201 count up, and the decoder/driver 29
The “0” level signal position sent by R and 30 is carried to the output terminals 29g and 30g, and
The S flip-flop circuit 210 is reset,
A “1” level signal is input to one input of AND gates 228 and 230, and a “0” level signal is input to one input of AND gates 229 and 231. Therefore, once the R/S flip-flop circuit 210 is reset, the UP/Flip-flop circuit 210 is reset.
The input of the DOWN counter 28 is not divided and is UP/
Since the input of the DOWN counter 281 is divided,
The right lamp swings at a large angle, and the left lamp swings at a small angle, resulting in an asymmetrical operation.

On the other hand, when the output terminals 29h and 30h of the decoders/drivers 29 and 30 are at the "0" level and the AND gate 27 sends out a "1" level signal, the UP/DOWN counters 28 and 2
01 counts down, the position of the "0" level signal sent by the decoders/drivers 29 and 30 falls to the output terminals 29i and 30i, the R/S flip-flop circuit 211 is reset, and one of the AND gates 224 and 226 is reset. If the input is a “1” level signal, the AND gate 2
A "0" level signal is input to one input of 25 and 227. Therefore, for countdown and countup after the R.S flip-flop circuit 211 is reset,
Since the input of the UP/DOWN counter 201 is not frequency-divided and the input of the UP/DOWN counter 28 is frequency-divided, an asymmetric operation is performed in which the left lamp swings by a large angle and the right lamp swings by a small angle.

By switching between the symmetrical motion and the asymmetrical motion in this manner, the advantages of the symmetrical motion and the asymmetrical motion can be mutually utilized, and safety during night driving can be improved.

In this embodiment (FIGS. 1 and 4 to 6), the processing circuit 2 is constructed of a hardware circuit, but it may also be program-controlled using a microcomputer or the like. Although a sliding contact is used to detect the rotational position of the lamp, it may also be detected using light. Moreover, although the deflection angle of the lamp in the irradiation direction is changed in stages in conjunction with steering wheel steering, it may be configured to be changed continuously. Further, although this embodiment has been described with reference to an electric cornering lamp, it may also be applied to a mechanical cornering lamp system in which the lamp is moved from a steering rod via a link, for example. In addition to the headlights, auxiliary lights may also be movable.

[Effects of the Invention] As explained above, according to the vehicle cornering system according to the present invention, the direction of illumination of the light means on the side in the steering direction is made variable in conjunction with steering wheel steering, and the direction of light emitted by the light means on the side opposite to the steering direction is made variable. Since it is fixed, and the deflection angle in the irradiation direction of the lighting means on the side opposite to the steering direction is made smaller than the deflection angle in the irradiation direction of the lighting means on the steering direction side, the deflection angle in the irradiation direction of the lighting means on the side in the steering direction is The light means illuminates the direction of travel, and the light means on the side opposite to the steering direction illuminates the front of the vehicle, improving safety during night driving.

[Brief explanation of drawings]

Fig. 1 is a circuit configuration diagram showing an embodiment of a cornering lamp system for a vehicle according to the present invention, Fig. 2 is an output waveform diagram of a photo sensor used in this cornering lamp system, and Fig. 3 is a diagram showing an output waveform of a photo sensor used in this cornering lamp system. A plan view illustrating the operation when the stepwise deflection angle of the movable lamp is set at unequal angle intervals; FIG. 4 is a circuit configuration diagram of a cornering lamp system that enables switching between one-sided operation and two-sided symmetrical operation; FIG. 5 is a circuit diagram of a cornering lamp system that allows asymmetrical operation on both sides, and FIG. 6 is a circuit diagram of a cornering lamp system that allows switching between symmetrical operation on both sides and asymmetrical operation on both sides. 1...Photo sensor, 2...Processing circuit, 3...
Right lamp drive unit, 4...Left lamp drive unit, 28,201...UP/DOWN counter,
29, 30... decoder/driver, 31, 41
...Sliding board, 32, 33, 42, 43... Conductor pattern, 34a to 34i, 44a to 44i...
Sliding contact, 39, 49...DC motor, 6...Right lamp drive shaft, 7...Left lamp drive shaft.

Claims (1)

[Scope of Claims] 1. In a cornering lamp system for a vehicle that includes lighting means on each side of the front left and right sides of the vehicle, and in which the direction of illumination of the light means is varied in conjunction with steering wheel steering, the direction of illumination of the lighting means on the steering direction side is controlled by steering the steering wheel. A cornering lamp system for a vehicle, characterized in that a irradiation direction variable means is provided that is variable in conjunction with steering and fixes the irradiation direction of the lighting means on the side opposite to the steering direction. 2. In a cornering lamp system for a vehicle that includes lighting means on each side of the front left and right sides of the vehicle, and in which the direction of illumination of the lighting means is variable in conjunction with steering wheel steering, the direction of illumination of the lighting means on the steering direction side is variable in conjunction with steering wheel steering. A cornering lamp system for a vehicle, characterized in that a vehicle cornering lamp system is provided with an irradiation direction variable means that makes the deflection angle of the illumination direction of the illumination means on the side opposite to the steering direction smaller than the deflection angle of the illumination means on the side of the steering direction.