JPS62110541A - Cornering lamp circuit - Google Patents

Abstract

PURPOSE:To increase safety for driving in an acute corner at night with head lamps kept alight by turning on a cornering lamp when the steering angle of the steering reaches a predetermined value in addition to the time when the direction indicator is actuated. CONSTITUTION:When it is desired to turn, for example, to the right during driving at night with head lamps kept alight, a turn signal switch 11 is operated to the right to turn on a right turn signal lamp 17. As the lamp 17 is turned on, a cornering lamp turning-on control unit 7 turns on a right cornering lamp 27, on condition that a light switch 5 and the switch 11 are on. On the other hand, when the vehicle is steered so largely during driving such as in an acute curve also at night that the steering angle may exceed a predetermined value, a steering switch 13 or 15 corresponding to the turning direction is turned on, and consequently a cornering lamp 27 or 29 corresponding to the turning direction of the vehicle is turned on.

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to a cornering lamp lighting circuit that illuminates the left front or right front of a vehicle in conjunction with a turn signal switch of the vehicle to expand the irradiation angle of the headlight. In particular, the present invention relates to a cornering lamp circuit that increases the usefulness of the cornering lamp and contributes to further improvement of driving safety.

[Technical background of the invention and its problems]

Generally, when driving at night, even if the headlights are turned on, visibility is poor diagonally forward of the vehicle due to the finite irradiation angle of the headlights. Particular attention must be paid when turning left or right when driving at night.

For this reason, some vehicles are equipped with cornering lamps in order to improve visibility diagonally ahead of the vehicle when turning right or left (for example, Nichijo Service Bulletin, October 1981, No. 491). @Nitsun “Bluebird” v-8~■10). This cornering lamp is provided adjacent to the side of the vehicle with respect to the headlights, and when turned on, illuminates a predetermined angular area further outside the field of view at the illumination angle of the headlight.

By the way, as mentioned above, the need for cornering lamps is to improve visibility in J3 when driving at night when turning left or right. Limited to cases where However, when we further examine the necessity of cornering lamps, we find that it is better to turn them on not only when turning right or left, but also when driving around a sharp curve, etc., from the standpoint of driving safety, and improvements in this area are desperately needed. was.

[Purpose of the invention]

The present invention has been made in view of the above, and an object thereof is to provide a cornering lamp circuit that is highly useful and can contribute to improving the safety of night driving.

[Summary of the invention]

In order to achieve the above purpose, the vehicle is equipped with a TiN headlight that expands the beam angle, and controls the cornering lamps that are turned on when the headlights are turned on and the turn signal is activated. The gist of the present invention is that the circuit includes lighting control means for turning on the cornering lamp when the steering angle of the steering wheel is behind the set angle while the headlamp is on.

[Embodiments of the invention]

Hereinafter, the present invention will be explained in detail using the drawings.

FIG. 1 shows a cornering lamp circuit according to an embodiment of the present invention. In the figure, reference numeral 1 denotes an on-vehicle battery, the positive electrode of which is connected to one end of a key switch 3, a movable terminal 5a of a light switch 5, and cornering lamp lighting control units 1 to 7, which will be described later.

The other end of the key switch 3 is connected to a movable terminal 11a of a turn signal switch 11 via a flasher unit 9, and one end of the steering switch 13.15 is connected to a movable terminal 11a of a turn signal switch 11.
are connected to one end of each. Further, the turn signal switch 11 has its fixed terminals 11b and 11C.
are respectively connected to body ground via turn signal lamps 17, 19, and diodes 21.
23 to the cornering lamp lighting control unit 7, and is further connected to body ground within the unit 7, although not shown. That is, when the turn signal switch 11 is operated when the key switch 3 is turned on and the movable terminal 11a is connected to the fixed terminal 11b or 11c, the battery 1 → key switch 3 → flasher unit 9 → turn signal switch 11 → turn Current will flow through the path from the signal lamps 17, 19 to the body ground, causing either the turn signal lamps 19 or 19 to blink. In addition, in this case, current also flows through the path of battery 1 → key switch 3 → flasher unit 9 → turn signal switch 11 → diode 21.23 → cornering lamp lighting control unit a → body ground.
In the cornering lamp lighting control unit, blinking of the turn signal lamps 17 and 19 can be detected based on the presence or absence of this current flow. Incidentally, the flashing of the turn signal lamps 17 and 19 is caused by the flasher unit 9.
It is controlled by the energization control function in.

Further, one turn signal lamp 17 is for left turns, and the other turn signal lamp 19 is for left turns.

On the other hand, the other ends of the steering switches 13.15 are connected to the diodes 21.15, respectively. ．． 23, is connected to the cornering lamp lighting control unit 7, and is further connected to body ground within the unit 7, although not shown.
The open state occurs when the steering wheel (not shown) is rotated beyond a set angle. That is, when the steering switches 13 and 15 are opened, a current flows through the path of the battery 1 → key switch 3 → steering switches 13, 15 → conering lamp lighting control unit 7 → body ground.
The cornering lamp lighting control unit can determine whether or not the steering angle exceeds the set steering angle based on the presence or absence of this current flow.

Moreover, the light switch 5 has its fixed terminal 5b.

5C is connected to one end of a downward filament 25a and an upward filament 25b constituting the headlamp 25, respectively, and is also connected to a cornering lamp lighting control unit 7, and is further connected to body ground within the unit 7 (not shown). ing. Filament 25a. The other ends of 25b are both connected to body ground. Therefore, when the light switch 5 is operated, a current flows through the path from the battery 1 to the light switch 5 to the headlamp 25 to the body 7-s, and the downward filament 25a or the upward filament 25b lights up. A current flows through the path of → cornering lamp lighting control unit 7 → body ground, and the cornering lamp lighting control unit 7 can determine whether the headlamp 25 is on or off based on the presence or absence of this current flow. In addition, in FIG. 1, for convenience of explanation, only one lighting circuit for the headlamp 25 is shown.

The cornering lamp lighting control unit 7 has a cornering lamp 27.2 between its output terminal and body ground.
9 is connected to control turning on and off of the cornering lamps 27 and 29 in accordance with the current flow from each of the above-mentioned paths. Specifically, headlamp 25
When the turn signal switch 11 or steering switch 13.15 is activated while the cornering lamp is on, the cornering lamp 27°29
It lights up. This is summarized in Table 1.

Table 1 Note that when the cornering lamps 27.29 are turned on, either one of the cornering lamps is turned on depending on which of the turn signal lamps 17.19 or the back of the steering switch 13.15 is turned on. is lit. Also, cornering lamp 27
．． Reference numerals 29 irradiate the diagonal right direction and left diagonal direction of the vehicle, respectively.

Next, the operation of this embodiment will be explained.

When driving at night with the headlamp 25 turned on, when the driver intends to turn right or left, the turn signal switch 11 is operated in that direction, and the turn signal lamp 17 or 19 in the direction in which the driver intends to turn is turned on. and,
As the turn signal lamp 17 or 19 turns on, the cornering lamp lighting control unit 7 detects that the light switch 5 and the turn signal switch 11 are in the on state (see Table 1), and the cornering lamp lighting control unit 7 detects that the light switch 5 and the turn signal switch 11 are in the on state (see Table 1). Turn on the cornering lamp 27 or 29 in the direction you are pointing.

On the other hand, when driving at night with the headlights 25 on and trying to turn right or left through the 21 curve, the steering wheel is turned significantly in the direction of the turn; When the angle exceeds the set angle, the steering switch 13 or 15 corresponding to the rotational steering direction is closed. As the steering switch 13 or 15 is closed, the cornering lamp lighting control unit 7 detects that the light switch 5 and the steering switch 13 or 15 are in the on state (see Table 1). , the cornering lamp 27 or 29 in the direction in which the vehicle is turning is turned on.

〔Effect of the invention〕

As explained above, according to the present invention, when the headlights are on, the cornering lamps are turned on not only when the turn signal is activated but also when the steering angle reaches the set angle. This improves the usefulness of cornering lamps, such as making it easier to check the road shoulder when passing a sharp curve, for example, compared to the conventional circuit that could only turn them on when the turn signal was activated.
In turn, it can contribute to improving the safety of driving at night.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a cornering lamp circuit according to an embodiment of the present invention. 1...Battery 3...Key switch 5...
Light switch 7... Cornering lamp lighting control unit 9...
Flasher unit 11... Turn signal switch 13... Steering switch 15... Steering switch 17... Turn signal lamp 19... Turn signal lamp 25... Head lamp 27... Cornering lamp

Claims (1)

[Claims] In the circuit that controls the lighting of cornering lamps that are equipped to widen the beam angle of the headlights installed on the vehicle and are turned on when the turn signals are activated while the headlights are on, A cornering lamp circuit comprising lighting control means for lighting the cornering lamp when a steering angle of a steering wheel reaches a set angle.