JP2001138802A - Lighting system for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system for a vehicle capable of simultaneously reducing troublesomeness caused by a steer by a lamp during backing and securing a front view field. SOLUTION: Steer lamps 3a, 3b, are provided for orienting illumination direction to the front side of the vehicle and left in cooperation with steering of the vehicle, a CPU 37 calculates acceleration of the vehicle based on car speed detected by a car speed sensor 25, and an inhibitor switch 27 detects a shift position of a shift lever. When a reverse position is detected, the steer lamps 3a, 3b are turned off upon detection of the car speed (during backing of the vehicle). When a shift position showing advancing is detected and the detected acceleration exceeds a predetermined acceleration (the vehicle transfers to a normal advance running state), the steer lamps 3a, 3b are turned on. Additionally, auxiliary lamps 5a, 5b for illuminating front circumference around the vehicle are previously provided, and the auxiliary lamps 5a, 5b are turned on when the steer lamps 3a, 3b are turned off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lighting apparatus capable of optimally controlling a steerable lamp capable of driving an irradiation direction in conjunction with steering of a vehicle.

[0002]

2. Description of the Related Art A vehicle is equipped with a headlight for illuminating the front of the vehicle for traveling at night, so that the driver has a forward view. However, since the optical axis of the headlamp is generally fixed in the left-right direction, it cannot be denied that there is an insufficient driving condition for securing the visibility of the front side surface when, for example, turning a curve.

In view of the above, as a technique for securing the visibility of the front side surface, in recent years, it has been proposed to install a steer lamp for driving the irradiation direction to the left or right in conjunction with the steering of the vehicle.

By installing a steer lamp and driving the optical axis in the left-right direction, for example, as shown in FIG. 9, the visibility of the front side surface is obtained by the function of the steer lamp (light distribution pattern A) when turning a curve. Can be improved. Note that FIG.
The middle and light distribution pattern B is a case where the optical axis is fixed in the left-right direction.

[0005]

However, in such a conventional vehicle lighting device, it is possible to secure the visibility of the front side surface by installing a steerable lamp that is movable left and right when moving forward. When looking backwards while looking at the rearview mirror or the door mirror, the optical axis of the steer lamp is driven to the left and right, which obfuscates the front view and makes it more complicated.
It may distract the driver.

[0006] The present invention has been made in view of the above,
It is an object of the present invention to provide a vehicular lighting device that can reduce the complexity of a steer light at the time of reversing, and can achieve both of this and securing of a forward view.

[0007]

According to the first aspect of the present invention,
To solve the above problem, a steering light that drives the irradiation direction from the front to the left or right in conjunction with the steering of the vehicle, a vehicle speed detection unit that detects the vehicle speed, and a traveling direction detection unit that detects the traveling direction of the vehicle Control means for controlling so as to turn off the steer lamp when the vehicle speed detection means detects a vehicle speed of a predetermined value or more when the vehicle traveling backward is detected by the traveling direction detection means. Make a summary.

According to a second aspect of the present invention, to solve the above-mentioned problem, the vehicle further comprises an acceleration state detecting means for detecting an acceleration state of the vehicle, and the control means detects that the vehicle is moving forward by the traveling direction detecting means. In this case, when the acceleration state detected by the acceleration state detection means is equal to or higher than a predetermined acceleration state, the gist is controlled to turn on the steer lamp.

According to a third aspect of the present invention, there is provided a steering light for driving the irradiation direction from the front to the left or right in conjunction with the steering of the vehicle, a vehicle speed detecting means for detecting the vehicle speed, and a vehicle. Acceleration state detection means for detecting the acceleration state of
A traveling direction detecting means for detecting the traveling direction of the vehicle, and when the backward movement of the vehicle is detected by the traveling direction output means,
When the vehicle speed is detected by the vehicle speed detecting means,
The steering light is controlled to be turned off, and when the forward direction of the vehicle is detected by the traveling direction detecting means, when the acceleration state detected by the acceleration state detecting means is equal to or higher than a predetermined acceleration state, It is essential to have a control means for controlling to turn on the steer lamp.

According to a fourth aspect of the present invention, to solve the above-mentioned problem, an auxiliary light for illuminating a front area of the vehicle is provided, and the control means controls the auxiliary light when the steer light is turned off. The gist of the present invention is to control the lighting of the lamp.

[0011]

According to the first aspect of the present invention, when a vehicle retreat is detected, when a vehicle speed equal to or higher than a predetermined value is detected, that is, when the vehicle moves backward, the steering light is turned off. Thus, it is possible to reduce the complexity due to the change in the irradiation direction of the steer lamp when the vehicle is moving backward.

According to the present invention, the acceleration state of the vehicle is detected, and when the forward movement of the vehicle is detected, the detected acceleration state is equal to or higher than a predetermined acceleration state. At that time, that is, when it is determined that the vehicle has transitioned to the normal forward running state, by turning on the steer lamp, it is possible to secure the front view at the time of normal forward.

According to the third aspect of the present invention, when the vehicle is detected to move backward, when a vehicle speed equal to or higher than a predetermined value is detected, that is, when the vehicle moves backward, the steering light is turned off. If the detected acceleration state is equal to or greater than a predetermined acceleration state, that is, if it is determined that the vehicle has shifted to the normal forward traveling state, the steering light is turned on. Thereby, it is possible to reduce the complexity due to the change in the irradiation direction of the steer lamp when the vehicle is moving backward, and it is possible to secure a normal front view when the vehicle is moving forward.

According to the fourth aspect of the present invention, an auxiliary light for illuminating the front area of the vehicle is provided, and when controlling to turn off the steer light, the auxiliary light is turned on.
Even while reversing, while securing visibility around the front of the vehicle,
At the same time, complexity due to a change in the irradiation direction of the steer lamp can be reduced.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a system configuration of a vehicle lighting device according to an embodiment of the present invention.

In FIG. 1, right and left (L) headlights 1a, 1 are illuminated in front of the vehicle.
b, steering lights 3a and 3b, and auxiliary lights 5a and 5b are installed near the front end of the vehicle.

The headlights 1a and 1b are basic lights that illuminate the front of the vehicle with a built-in lamp 7, and their optical axes are fixed in the left-right direction. Turning on and off of the headlights 1a and 1b is controlled by the lighting switch 23.

The steer lamps 3a and 3b are lights for driving the irradiation direction to the front of the vehicle to the left and right in conjunction with the steering of the vehicle, and include a lamp 9 and a left and right drive mechanism for driving the optical axis to the left and right. are doing. The left and right drive mechanism includes, for example, a stepping motor 11 and a motor driver 13. As will be described later, the steer lamps 3a and 3b are turned off when the vehicle moves backward (R range and vehicle speed S> 0 km / h).

The auxiliary lamps 5a and 5b include a built-in lamp 15
The auxiliary light illuminates the area around the front of the vehicle, and its optical axis is fixed in the left-right direction. Auxiliary light 5
As described later, a and 5b are turned on when the vehicle is detected to move backward.

When the vehicle is equipped with cornering lamps, the auxiliary lamps 5a and 5b may be replaced by turning on both cornering lamps.

FIG. 7 shows an example of a vehicle arrangement position of the headlights 1a and 1b and the steering lights 3a and 3b. FIG.
As shown in FIG. 3, the steer lamps 3a and 3b are
b.

The headlights 1a, 1b and the steer lights 3a,
An example of the light distribution pattern 3b is as shown in FIG. As shown in FIG. 8 (A), the light distribution pattern of the headlights 1a and 1b forms a cut line so that light does not enter the door mirror of the preceding vehicle, and is cut to improve distant visibility. Brightening below the line. Steer light 3
The light distribution pattern of the straight lights a and 3b is as shown in FIG. 8B, but the light distribution pattern of the steer lamps 3a and 3b at the time of steering operation (at the time of steering) is shown in FIG. As described above, in association with the steering operation, the steering wheel moves leftward when turning left, and moves rightward when turning right.

Headlights 1a and 1b, steer lights 3a and 3b,
And the auxiliary lights 5a and 5b are respectively a headlight relay 1
7, via the steer light relay 19 and the auxiliary light relay 21,
A control unit 29 for controlling these lights and a battery 49 are connected. In order to provide a control trigger to the control unit 29,
A lighting switch 23 for turning on / off a plurality of lights, a vehicle speed sensor 25 for detecting a vehicle speed, and an inhibitor switch for detecting a shift position of a shift lever, in particular, a reverse position (R range) of the shift lever here. 27 are connected to each other, and output respective detection signals to the control unit 29.

Although the inhibitor switch 27 is provided to detect that the reverse gear has been engaged, it may be replaced by another trigger such as a back lamp.

The control unit 29 is roughly divided into
It comprises a microcomputer 31, a power supply circuit 33, and a transistor group 35. The microcomputer 31 is C
PU 37, ROM 39 for storing control programs, RAM 41 for storing control data and serving as a work area, input / output (I / O) interface 43, address bus 45,
And a data bus 47. I / O interface 4
The lamps 3, the lighting switch 23, the vehicle speed sensor 25, and the inhibitor switch 27 are connected to 3 via a transistor group 35. The power of the microcomputer 31 is provided by lowering the voltage of the battery 49 by the power supply circuit 33.

The control unit 29 receives detection signals from the lighting switch 23, the vehicle speed sensor 25, and the inhibitor switch 27, and outputs a control signal corresponding to the input signal to the relays 17, 19, and 21 for lighting. (Headlights 1a, 1b, steer lights 3a, 3b, auxiliary light 5
a, 5b) (on / off).

Next, the operation of the vehicle lighting device will be described with reference to the control flowcharts shown in FIGS. here,
2 is a main flowchart, FIG. 3 is a flowchart showing a headlight control subroutine in FIG. 2, and FIG.
FIG. 5 is a flowchart showing a subroutine for steering light control in FIG. 2, and FIG. 5 is a flowchart showing a subroutine for auxiliary light control in FIG. The control flowcharts shown in FIGS. 2 to 5 are stored as a control program in the ROM 39 of the microcomputer 31 in the control unit 29.

First, in step S100, the control unit 29 reads the instantaneous vehicle speed S from the vehicle speed sensor 25. The vehicle speed read from the vehicle speed sensor 25 is temporarily stored in the RAM 41 of the microcomputer 31. Then, in step S105, the vehicle speed S0 one second before is read from the RAM 41.

Here, in step S110, the control unit 29 controls the CP of the microcomputer 31.
In U37, a change in the speed of the vehicle, that is, acceleration (S-S0) is calculated based on the instantaneous vehicle speed S and the vehicle speed S0 one second before.

In step S115, it is determined whether or not the acceleration (S-S0) calculated in step S110 is equal to or greater than a predetermined acceleration (threshold). If the acceleration (S-S0) is equal to or greater than the threshold value (S115: YES), the acceleration flag is set to ON (S120). If the acceleration (S-S0) is less than the threshold value (S115: S115). NO), the acceleration flag is set to OFF (S125).

The above steps S100 to S12
5 is used to determine the acceleration state of the vehicle (acceleration determination).

Thereafter, in step S130, control unit 29 determines whether or not the back flag indicating that the vehicle is moving backward is OFF. If the back flag is OFF (S130: YES), step S1
35, if the back flag is ON (S130:
NO), and proceed to step S150.

When the back flag is OFF (S130:
In step S135 to proceed to (YES), it is determined whether or not the shift position (position) of the vehicle is the reverse position (R range) based on the detection signal (shift position information of the shift lever) read from the inhibitor switch 27.
If the position is in the R range (S135: YES),
Proceeding to step S140, if the position is in the P, N, D, 1, 2 range other than the R range (S135: N
O) Since there is no need to change the back flag, the process immediately proceeds to step S170.

In step S140, step S100
It is determined whether or not the vehicle speed S read in step S1 exceeds 0 km / h, that is, whether or not the vehicle is moving. If the vehicle speed S exceeds 0 km / h (S140: YE
S), after all, the vehicle is moving backward (R range and vehicle speed S>
0km / h), so the back flag is turned on.
(S145), and proceeds to step S170. If the vehicle speed S is 0 km / h (S140: NO), there is no need to change the back flag, so step S170 is immediately performed.
Proceed to.

On the other hand, when the back flag is ON (S13)
In step S <b> 150, the process proceeds to step S <b> 150 to determine whether the vehicle shift position (position) is other than the reverse position (R range) based on the detection signal (shift position information of the shift lever) read from the inhibitor switch 27. . Positions P, N, D, 1, 2 other than R range
In the case of the range (S150: YES), step S15
5 and if the position is in the R range (S150:
NO), since there is no need to change the back flag, the process immediately proceeds to step S170.

In step S155, step S100
It is determined whether or not the vehicle speed S read in step S1 exceeds 0 km / h, that is, whether or not the vehicle is moving. If the vehicle speed S exceeds 0 km / h (S155: YE
S), the process proceeds to step S160. If the vehicle speed S is 0 km / h (S155: NO), there is no need to change the back flag, so the process immediately proceeds to step S170.

At step S160, the acceleration flag is turned on.
Determine whether or not. When the acceleration flag is ON (S1
60: YES), and eventually the vehicle is moving forward (other than the R range,
In addition, since it is determined that the vehicle speed S is greater than 0 km / h and the acceleration flag is ON, the back flag is changed to OFF (S165), and the process proceeds to step S170. If the acceleration flag is OFF (S160: NO), and the process immediately advances to step S170 because the switch is advanced only to the degree of switching and there is no need to change the back flag.

The above steps S130 to S16
According to 5, the determination of the reverse state of the vehicle (back mode determination) is performed.

Thereafter, in step S170, the control unit 29 controls the turning on / off of the headlights 1a and 1b.

More specifically, as shown in the flowchart of FIG. 3, first, a setting signal is read from the lighting switch 23 (S200). Then, based on the setting signal read from the lighting switch 23, it is determined whether the lighting switch 23 is turned on (S).
205), when the lighting switch 23 is ON (S205: YES), the headlights 1a and 1b are turned ON.
(Lit) (S210), the lighting switch 23
Is turned off (S205: NO), the headlights 1a and 1b are turned off (turned off) (S215), and the routine returns.

That is, the headlights 1a and 1b are turned on (O
N) is that the lighting switch 23 is turned on (“writing switch = ON”),
The condition for turning off (OFF) the headlights 1a and 1b is that the lighting switch 23 is turned off (“writing switch = OFF”).

Then, in step S175, the control unit 29 controls the turning on / off of the steer lamps 3a, 3b.

Specifically, as shown in the flowchart of FIG. 4, first, a setting signal is read from the writing switch 23 (S300). And the steer lights 3a, 3b
It is determined whether or not is currently ON (S30)
5).

If the steering lights 3a and 3b are currently ON (S305: YES), the lighting switch 2
It is determined whether or not the lighting switch 23 is turned off based on the setting signal read from Step 3 (S3).
310). If the lighting switch 23 is turned off (S310: YES), the steer lamps 3a and 3b are turned off (turned off) (S315), and step S320 is performed.
If the lighting switch 23 is ON (S310: NO), the process immediately proceeds to step S320.

Then, in a step S320, it is determined whether or not the back flag is ON. If the back flag is ON (S320: YES), the steering lights 3a and 3b are turned off.
The process returns after turning off the FF (S325), and returns immediately if the back flag is OFF (S320: NO).

On the other hand, if the steering lights 3a and 3b are currently turned off (S305: NO), the back flag is set to O.
It is determined whether it is FF (S330). If the back flag is OFF (S330: YES), step S33
5 and if the back flag is ON (S330: N
O), return immediately.

In step S335, based on the setting signal read from the lighting switch 23,
It is determined whether the lighting switch 23 is turned on. If the lighting switch 23 is ON (S335: YES), the steering lights 3a and 3b are turned off.
N (lights) (S340), and returns. If the lighting switch 23 is turned off (S33)
5: NO), return immediately.

That is, the steer lamps 3a and 3b are turned on (O
N) is that the lighting switch 23 is turned on and the back flag is turned off (“writing switch = ON and back flag = OF”).
F "), and the condition for turning off (OFF) the steer lamps 3a and 3b is that the lighting switch 23 is turned off,
Alternatively, the back flag is ON (“writing switch = OFF or back flag = ON”).

Then, in step S180, the control unit 29 controls the turning on / off of the auxiliary lights 5a and 5b.

More specifically, as shown in the flowchart of FIG. 5, first, a setting signal is read from the lighting switch 23 (S400). Then, it is determined whether the auxiliary lights 5a and 5b are currently turned off (S40).
5).

If the auxiliary lights 5a and 5b are currently turned off (S405: YES), the lighting switch 2
It is determined whether or not the lighting switch 23 is ON based on the setting signal read from S3 (S4).
10). If the lighting switch 23 is ON (S410: YES), the process proceeds to step S415,
If the lighting switch 23 is turned off (S410: NO), the routine immediately returns.

Then, in a step S415, it is determined whether or not the back flag is ON. When the back flag is ON (S415: YES), the auxiliary lights 5a and 5b are turned ON.
(S420), and the process returns. If the back flag is OFF (S415: NO), the process immediately returns.

On the other hand, if the auxiliary lamps 5a and 5b are currently turned on (S405: NO), it is determined whether or not the lighting switch 23 is turned off based on the setting signal read from the lighting switch 23 (S425). ). If the lighting switch 23 is turned off (S425: YES), the auxiliary lights 5a, 5b
Is turned off (turned off) (S430), and step S43 is performed.
Then, if the lighting switch 23 is ON (S425: NO), the process immediately proceeds to step S435.

Then, in a step S435, it is determined whether or not the back flag is OFF. Back flag is OF
In the case of F (S435: YES), the auxiliary lights 5a and 5b are turned off (turned off) (S440), and the process returns. When the back flag is ON (S435: NO), the process immediately returns.

That is, the auxiliary lights 5a and 5b are turned on (O
The condition for N) is that the lighting switch 23 is turned on and the back flag is on (“writing switch = ON and back flag = ON”), and the auxiliary lights 5a and 5b are turned off (OFF). The condition to be set is that the lighting switch 23 is turned off or the back flag is turned off (“writing switch = OFF or back flag = OFF”).

The above steps S170 to S18
0 means that the lights (headlights 1a, 1b, steer light 3
a, 3b and the auxiliary lights 5a, 5b) are turned on / off (light-off control).

Next, the operation of the vehicle lighting device will be described with reference to the timing chart shown in FIG.

First, when the lighting switch 23 is turned on as shown in step (1) of FIG. 6 with the vehicle stopped, the following processing is performed according to the main flowchart shown in FIG.

A. Acceleration determination vehicle speed S is 0 km / h (step S100), vehicle speed S one second before
Since 0 is 0 km / h (step S105), the acceleration (S-S0) becomes 0 (step S110). Therefore, by comparison with the threshold value (step S115: N
O), the acceleration flag is turned off (step S12)
5).

B. The back mode determination back flag is OFF (step S130: YES),
Shift position (position) is reverse position (R range)
(Step S135: NO), the back flag is not changed.

[0062] c. The light-on / off control headlamps 1a and 1b are "lighting switch = ON".
Since the condition (1) is satisfied, the light is turned on (ON) (step S170). The steer lamps 3a and 3b are turned on (ON) because the condition of "writing switch = ON and back flag = OFF" is satisfied (step S17).
5). The auxiliary lamps 5a and 5b are provided with a “lighting switch =
Since the condition of “ON and back flag = ON” is not satisfied, the condition is the same as before (step S180).

As a result, the headlights 1a and 1b are turned on (O
N), the steer lamps 3a, 3b are turned on (ON), and the auxiliary lamps 5a, 5b remain off (OFF).

Thereafter, as shown in steps (2) and (3) shown in FIG. 6, when the shift lever of the vehicle is shifted to the R range and running starts, the following processing is performed according to the main flowchart shown in FIG. .

A. The acceleration determination vehicle speed S is less than 0 km / h (step S100). Since the vehicle speed S0 one second before is 0 km / h (step S105), the acceleration (S-S0) is less than 0 (step S110).
Therefore, by comparison with the threshold value (step S115:
(NO), the acceleration flag is turned off (step S12)
5).

B. The back mode determination back flag is OFF (step S130: YES),
Shift position (position) is reverse position (R range)
Since the vehicle speed S exceeds 0 km / h (step S135: YES), the back flag is turned ON (step S145).

[0067] c. The light-on / off control headlamps 1a and 1b are "lighting switch = ON".
Is satisfied, the condition is the same as before (step S170). The steer lamps 3a and 3b are turned off (OFF) because the condition of "lighting switch = OFF or back flag = ON" is satisfied (step S1).
75). The auxiliary lights 5a and 5b are turned on (ON) because the condition of "writing switch = ON and back flag = ON" is satisfied (step S180).

As a result, the headlights 1a and 1b are turned on (O
N), and the steer lamps 3a and 3b are turned off (O
FF), and the auxiliary lights 5a and 5b are turned on (ON).

Thereafter, as shown in step (4) shown in FIG.
When the vehicle once stops and moves forward (slow acceleration), the following processing is performed according to the main flowchart shown in FIG.

A. The acceleration determination vehicle speed S exceeds 0 km / h (step S100), and since the vehicle speed S0 one second before is 0 km / h (step S105), the acceleration (S-S0) exceeds 0 (step S110).
However, since the acceleration is smaller than the threshold (step S115: NO), the acceleration flag is turned off (step S125).

B. The back mode determination back flag is ON (step S130: NO), the shift position (position) is other than the reverse position (R range) (step S150: YES), the vehicle speed S exceeds 0 km / h (step S155: YES), and acceleration is performed. Since the flag is OFF (step S160: NO), the back flag is not changed.

[0072] c. The light-on / off control headlamps 1a and 1b are "lighting switch = ON".
Is satisfied, the condition is the same as before (step S170). The steer lamps 3a and 3b remain as they are because the condition of "lighting switch = ON and back flag = OFF" is not satisfied (step S).
175). The auxiliary lights 5a and 5b remain as they are because the condition of "lighting switch = OFF or back flag = OFF" is not satisfied (step S18).
0).

As a result, the headlights 1a and 1b are turned on (O
N), and the steer lamps 3a and 3b are turned off (O
FF) and the auxiliary lights 5a and 5b are turned on (O
N).

Thereafter, as shown in step (5) shown in FIG.
When the vehicle stops once again and moves backward, the following processing is performed according to the main flowchart shown in FIG.

A. Acceleration determination vehicle speed S is 0 km / h (step S100), vehicle speed S one second before
Since 0 exceeds 0 km / h (step S105), the acceleration (S-S0) becomes less than 0 (step S110). Therefore, by comparison with the threshold value (step S115: N
O), the acceleration flag is turned off (step S12)
5).

B. Since the back mode determination back flag is ON (step S130: NO) and the shift position (position) is the reverse position (R range) (step S150: NO), the back flag is not changed.

[0077] c. The light-on / off control headlamps 1a and 1b are "lighting switch = ON".
Is satisfied, the condition is the same as before (step S170). The steer lamps 3a and 3b remain as they are because the condition of "lighting switch = ON and back flag = OFF" is not satisfied (step S).
175). The auxiliary lights 5a and 5b remain as they are because the condition of "lighting switch = OFF or back flag = OFF" is not satisfied (step S18).
0).

As a result, the headlights 1a and 1b are turned on (O
N), and the steer lamps 3a and 3b are turned off (O
FF) and the auxiliary lights 5a and 5b are turned on (O
N) It remains.

Thereafter, as shown in step (6) shown in FIG.
When the vehicle stops once and starts moving forward again (slow acceleration), FIG.
The following processing is performed in accordance with the main flowchart of FIG.

A. Acceleration determination vehicle speed S is 0 km / h (step S100), vehicle speed S one second before
Since 0 is less than 0 km / h (step S105), the acceleration (S-S0) exceeds 0 (step S110). However, since the acceleration is smaller than the threshold value (step S115: NO), the acceleration flag is turned off (step S125).

B. The back mode determination back flag is ON (step S130: NO), the shift position (position) is other than the reverse position (R range) (step S150: YES), and the vehicle speed S is 0 km / h (step S155: NO). There is no change in the back flag.

[0082] c. The light-on / off control headlamps 1a and 1b are "lighting switch = ON".
Is satisfied, the condition is the same as before (step S170). The steer lamps 3a and 3b remain as they are because the condition of "lighting switch = ON and back flag = OFF" is not satisfied (step S).
175). The auxiliary lights 5a and 5b remain as they are because the condition of "lighting switch = OFF or back flag = OFF" is not satisfied (step S18).
0).

As a result, the headlights 1a and 1b are turned on (O
N), and the steer lamps 3a and 3b are turned off (O
FF) and the auxiliary lights 5a and 5b are turned on (O
N) It remains.

Thereafter, as shown in steps (7) and (8) shown in FIG. 6, when accelerating (normal acceleration, non-gradual acceleration), the following processing is performed according to the main flowchart shown in FIG.

A. The acceleration determination vehicle speed S exceeds 0 km / h (step S100), and since the vehicle speed S0 one second before is 0 km / h (step S105), the acceleration (S-S0) exceeds 0 (step S110).
Moreover, since the acceleration is equal to or higher than the threshold (step S115: YES), the acceleration flag is turned on (step S120).

B. The back mode determination back flag is ON (step S130: NO), the shift position (position) is other than the reverse position (R range) (step S150: YES), the vehicle speed S exceeds 0 km / h (step S155: YES), and acceleration is performed. Since the flag is ON (Step S160: YES), the back flag is OFF (Step S165).

[0087] c. The light-on / off control headlamps 1a and 1b are "lighting switch = ON"
Is satisfied, the condition is the same as before (step S170). The steer lamps 3a and 3b are turned on (ON) because the condition of "writing switch = ON and back flag = OFF" is satisfied (step S17).
5). The auxiliary lamps 5a and 5b are provided with a “lighting switch =
Since the condition of "OFF or back flag = OFF" is satisfied, the light is turned off (OFF) (step S180).

As a result, the headlights 1a and 1b are turned on (O
N), and the steer lamps 3a and 3b are turned on (O).
N), and the auxiliary lights 5a and 5b are turned off (OFF).

Thereafter, as shown in step (9) shown in FIG.
When you stop and turn off the lighting switch 23,
The following processing is performed according to the main flowchart shown in FIG.

A. Acceleration determination vehicle speed S is 0 km / h (step S100), vehicle speed S one second before
Since 0 exceeds 0 km / h (step S105), the acceleration (S-S0) becomes less than 0 (step S110). Therefore, by comparison with the threshold value (step S115: N
O), the acceleration flag is turned off (step S12)
5).

B. The back mode determination back flag is OFF (step S130: YES),
Shift position (position) is reverse position (R range)
(Step S135: NO), the back flag is not changed.

[0092] c. The headlights 1a and 1b for turning on / off the control are described as follows.
Since the condition of "F" is satisfied, the light is turned off (OFF) (step S170). The steer lamps 3a and 3b are turned off (OFF) because the condition of "lighting switch = OFF or back flag = ON" is satisfied (step S175). The auxiliary lights 5a and 5b remain as they are because the condition of "lighting switch = ON and back flag = ON" is not satisfied (step S18).
0).

As a result, the headlights 1a and 1b are turned off (OF).
F) and the steer lamps 3a and 3b are turned off (OFF),
The auxiliary lights 5a and 5b remain off (OFF).

As described above, when the vehicle is traveling in reverse, the steering light 3
By turning off the lights 3a and 3b, the steer lights 3a and 3b can be used even when moving backward while looking at the rearview mirror or the door mirror.
There is no dazzling due to the change in the irradiation direction of 3b, and the complexity can be reduced. Moreover, when the steer lamps 3a and 3b are turned off (OFF), the auxiliary lamps 5a and 5b are turned on (O
N), the visibility around the front of the vehicle at the time of reversing can be secured, and at the same time, there is no dazzling due to the steering lights 3a and 3b, and the complexity can be reduced.

When it is determined that the acceleration of the vehicle is equal to or greater than the threshold value when the vehicle is moving forward and the vehicle has shifted to the normal forward running state, the steer lamps 3a and 3b are turned on (ON). The front view at the time of forward movement can be secured.

In the above-described embodiment, the traveling direction of the vehicle is detected by the inhibitor switch. However, in a vehicle having a manual transmission, the traveling direction may be detected by a shift lever or a shift position detection switch of the transmission. Alternatively, the detection may be performed by a switch for detecting the rotation direction of the wheel.

In the above embodiment, the acceleration is detected based on the acceleration calculated based on the vehicle speed read from the vehicle speed sensor. However, the acceleration is detected based on the throttle opening, the amount of depression of the accelerator pedal, the depression speed, and the like. You may do it.

Further, in the above embodiment, the predetermined vehicle speed has been described as 0 km / h, but an arbitrary speed may be set.

[Brief description of the drawings]

FIG. 1 is a diagram showing a system configuration of a vehicle lighting device according to an embodiment of the present invention.

FIG. 2 is a main control flowchart for describing a control operation of the vehicle lighting device according to the present embodiment.

FIG. 3 is a control flowchart showing a subroutine of headlight control in FIG. 2;

FIG. 4 is a control flowchart showing a subroutine of steer lamp control in FIG. 2;

FIG. 5 is a control flowchart showing a subroutine of auxiliary light control in FIG. 2;

FIG. 6 is a timing chart for specifically explaining the operation of the vehicle lighting device of the present embodiment.

FIG. 7 is a diagram showing an example of a vehicle arrangement position of a headlight and a steering light.

FIG. 8 is a diagram showing an example of a light distribution pattern of a headlight and a steer light, wherein a light distribution pattern of a headlight (A), a light distribution pattern of a steer light traveling straight (B), and a steering operation ( 9 shows a light distribution pattern (C) of a steer lamp at the time of steering).

FIG. 9 is a diagram for explaining the operation of the steer lamp in comparison with the case where the optical axis is fixed.

[Explanation of symbols]

 1a, 1b Headlight 3a, 3b Steer Light 5a, 5b Auxiliary Light 7, 9, 15 Lamp 11 Stepping Motor 13 Motor Driver 17, 19, 21 Relay 23 Lighting Switch 25 Vehicle Speed Sensor 27 Inhibitor Switch 29 Control Unit 31 Microcomputer 33 Power supply circuit 35 Transistor group 37 CPU 39 ROM 41 RAM 43 Input / output interface 45 Address bus 47 Data bus 49 Battery

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tsuyoshi Otsuka Nissan Motor Co., Ltd., 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Prefecture (72) Inventor Toshiyuki Fujikura 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa, Nissan Motor Co., Ltd. 72) Inventor Katsuyuki Arima 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture, Nissan Motor Co., Ltd. DC02 DC10 JA03 KA04

Claims (4)

[Claims] 1. A steering light for driving an irradiation direction from the front to the left or right in conjunction with steering of a vehicle, a vehicle speed detecting means for detecting a vehicle speed, a traveling direction detecting means for detecting a traveling direction of the vehicle, Control means for controlling so as to turn off the steer light when the vehicle speed detection means detects a vehicle speed of a predetermined value or more when the vehicle retreat is detected by the traveling direction detection means. Lighting equipment for vehicles. 2. The vehicle according to claim 1, further comprising an acceleration state detection unit configured to detect an acceleration state of the vehicle, wherein the control unit detects the acceleration detected by the acceleration state detection unit when the traveling direction detection unit detects that the vehicle is moving forward. The vehicle lighting device according to claim 1, wherein when the state becomes equal to or higher than a predetermined acceleration state, the steering light is controlled to be turned on. 3. A steer lamp for driving an irradiation direction left or right from the front in conjunction with steering of a vehicle, vehicle speed detection means for detecting vehicle speed, acceleration state detection means for detecting an acceleration state of the vehicle, A traveling direction detecting means for detecting a traveling direction of the vehicle, and when the backward direction of the vehicle is detected by the traveling direction outputting means, when the vehicle speed is detected by the vehicle speed detecting means, the steering light is controlled to be turned off. When the forward direction of the vehicle is detected by the traveling direction detecting means,
Control means for controlling to turn on the steer lamp when the acceleration state detected by the acceleration state detection means is equal to or higher than a predetermined acceleration state. 4. An auxiliary light for irradiating a front periphery of the vehicle, wherein the control means controls to turn on the auxiliary light when controlling to turn off the steer light. The vehicle lighting device according to claim 1.