JPH0529948Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention can be used, for example, in an external environment where visibility is poor even during the daytime due to fog, etc., and when the ignition switch is turned on, the turn lamp is turned on as a daytime running light. This invention relates to a vehicle headlamp control device that improves safety by turning on the headlights as a vehicle.

[Conventional technology]

Conventionally, for example, as shown in Japanese Utility Model Application Publication No. 61-27736, relays were interposed on the primary sides of the left and right turn lamps, and the turn lamps were used as lane marking lights by controlling the operation of these relays. There is something.

In addition, as a vehicle headlight control device that uses the above-mentioned turn lamp as a daytime running light, a relay coil is interposed on the secondary side of the ignition switch, and when the ignition switch is turned on, the above-mentioned relay It is conceivable to have a configuration in which the switch is activated, closes the relay contact, and lights up the turn lamp.

[The problem that the idea aims to solve]

However, in the above-mentioned vehicle headlight control device, the above-mentioned relay remains activated while the ignition switch is on, and the relay consumes power, and the relay coil is heated due to the relay coil being activated. The deterioration of the vehicle headlamp control device is rapid and failure of the vehicle headlamp control device is likely to occur.

Therefore, by connecting relays in series to the left and right turn lamps, the turn lamps are turned on as daytime running lights when the ignition switch is turned on, and when the turn switch is turned on or the hazard switch is turned on, the turn lamps are turned on as daytime running lights. By activating the relay and flashing the turn lamp,
It is conceivable to configure it so that it can perform its original function.

An example of the above configuration will be explained using FIG. 4. Ignition switch 1 connects the primary side to battery 2.
When turned on, the daylight cancel section 5, the flasher section 6 and the b contacts 71, 8 of the relays 7, 8 are connected to the turn switches 3, 4.
1. When the relays 7 and 8 are not operating, the a contact 72 and the common contact 7
3, and close the a contact 82 and common contact 83,
When in operation, the b contact 71 and the common contact 73, and the b contact 81 and the common contact 83 are closed. In addition, each of the above common contacts 73, 8
3 are connected to left and right turn lamps 9 and 10, respectively.

The turn switches 3 and 4 are linked to a turn signal lever provided on the steering wheel (not shown), and are operated by this lever to switch between the neutral point and the left contact points 31 and 4.
1 or the right contacts 32 and 42. The daylight cancel section 5 is connected to the left and right contacts 31 and 32 of the turn switch 3.
and the hazard switch 11, and these left contacts 3
1 or right contact 32 is closed, or when the hazard switch 11 is turned on, the relay 7,
8. The flasher section 6 is
It is connected to the left and right contacts 41, 42 of the turn switch 4 and the hazard switch 12, and when these left and right contacts 41, 42 are closed or the hazard switch 12 is turned on, the relays 7, 8 flash the turn lamps 9, 10. It outputs a signal.

Further, the hazard switches 11 and 12 are provided on an operation panel (not shown), and are opened and closed in conjunction with each other, so that the left and right turn lamps 9,
10 flashing operations at the same time.

Next, the operation of the above configuration will be explained.

First, hazard switches 11 and 12 are off,
If the ignition switch 1 is turned on when the turn switches 3 and 4 are at the neutral point, the relays 7 and 8 will not operate, so the B contacts 71 and 81
Power is supplied from the battery 2 to the turn lamps 9, 10 via the battery 2, and the turn lamps 9, 10 are turned on as daytime running lights.

At this time, for example, the hazard switch 11,1
2 is turned on, the relays 7 and 8 are activated by the daylight cancel unit 5, and the common contacts 73 and
83 and the a contacts 72, 82 are closed. Furthermore, a blinking signal is outputted from the flasher section 6 to the a contacts 72 and 82, and the turn lamps 9 and 10 blink at the same time.

Also, the hazard switches 11 and 12 are turned off, and the turn switches 3 and 4 are turned off at the left contacts 31 and 4.
41, the common contacts 73, 83
Since the and A contacts 72 and 82 remain connected, and a blinking signal is output from the flasher section 6 only to the A contact 72, only the left turn lamp 9 blinks.

On the other hand, when the hazard switches 11 and 12 are turned off and the turn switches 3 and 4 are switched to the right contacts 32 and 42, the common contacts 73 and 83 and the a contacts 72 and 82 remain connected, and
A flashing signal is output from the flasher section 6 only to the a contact 82, and the right turn lamp 10 flashes.

However, in this configuration, a hazard switch and a turn switch are required to operate the daylight cancel section 5, and a hazard switch and a turn switch are also required to operate the flasher section 6. Therefore, it is necessary to separately provide a hazard switch and a turn switch in the daylight cancel section 5 and the flasher section 6, respectively, resulting in an increase in the number of wiring lines leading to the switches, resulting in an increase in cost.

The purpose of this invention is to provide a vehicle headlight control device that solves the above problems and can reduce the number of switches such as hazard switches and turn switches, and reduce the number of wires leading to the switches. shall be.

[Means to solve the problem]

This invention is a vehicle headlight control device that lights turn lamps arranged on the left and right sides of the vehicle body as daytime running lights when the ignition switch is turned on. a flasher section that outputs a flashing signal of the turn lamp based on the operating signal from the switch means; a flashing detection means that detects the flashing signal of the flasher section; and a flashing detection signal of the flashing detection means. A connection selection means is provided which connects the flasher section and the turn lamp when the flashing detection signal is input, and lights the turn lamp when the input of the flashing detection signal is stopped.

[Effect]

According to the vehicle headlight control device having the above structure, even if the switch means is connected only to the flasher section, when the ignition switch is turned on, the turn lamp is turned on as a daytime running light, and the above-mentioned When the switch means is actuated, the turn lamp can be made to blink by detecting a blinking signal from the flasher section.

〔Example〕

FIG. 1 shows a first embodiment of a vehicle headlamp control device according to this invention. In addition, in the figure, the same numbers as in FIG. 4 indicate the same items. The vehicle headlight control device is
Ignition switch 1, battery 2, turn switch 4 and hazard switch 12 as switching means, flasher section 6, relays 7 and 8 as connection selection means, turn lamps 9 and 10, and pulse conversion means 13 as blinking detection means It consists of

The pulse conversion means 13 is composed of an OR circuit 131 and a pulse conversion circuit 132.
To the input of this OR circuit 131, output terminals 61 and 62 of the flasher section 6, which output blinking signals to the a contacts 72 and 82 of the relays 7 and 8, are connected in parallel. When a blinking signal is output from at least one of the output terminals 61 and 62, the blinking signal is output from the OR circuit 131 to the pulse conversion circuit 132.

The pulse conversion circuit 132 is composed of a retrigger type monostable multivibrator or the like, and outputs a signal having a pulse width corresponding to the blinking signal to the relays 7 and 8 when the blinking signal is input. Relays 7 and 8 are configured to operate when this pulse signal is input.

Next, regarding the operation of this configuration, we will use the case where the turn switch 4 is turned on to the left contact 41 as an example.
This will be explained using figures.

First, when the ignition switch 1 is turned on at time t ₁ when the hazard switch 12 is off and the turn switch 4 is at the neutral point during starting, the Power is supplied to the turn lamps 9 and 10, and the turn lamps 9 and 10 are turned on as daytime running lights.

Next, at time _t2 , turn switch 4 switches to left contact 4.
1, a blinking signal with a predetermined period T is input from the flasher section 6 to the pulse conversion circuit 132 from time _t2 to time _t7 , and a pulse signal corresponding to the output time of this blinking signal is input to the pulse conversion circuit 132. 132. While this pulse signal is being output, the relays 7 and 8 operate to connect the output terminals 61 and 62 of the flasher section 6 and the turn lamps 9 and 10.
are connected via relays 7 and 8, and the blinking signal is input from the output terminal 61 to the left turn lamp 9, causing the turn lamp 9 to blink.

On the other hand, when the turn switch 4 is switched to the neutral point again at time _t7 , the output of the flasher section 6 is turned off, the operation of the relay 7 is stopped, and the turn lamps 9 and 10 are turned on again. And time t ₈
When the ignition switch 1 is turned off, the turn lamps 9 and 10 are turned off.

Note that the above explanation was made regarding the case where the turn switch 4 is turned on to the left contact 41, but the same applies when the turn switch 4 is turned on to the right contact 42 or when the hazard switch 12 is turned on. The turn lamps 9 and 10 operate according to the switch turned on.

In this way, in this embodiment, the flasher portion 6
Even if a switch means is provided only in the vehicle, the turn lamps 9 and 10 can be turned on as daytime running lights or turned on and off by operating the switch means.

Next, a second embodiment of the vehicle headlamp control device according to this invention will be described with reference to FIG.

In this embodiment, the vehicle headlight control device includes an ignition switch 1, a battery 2, a turn switch 4 and a hazard switch 12 as switching means, a flasher section 63 including a flashing detection means, and a relay as a connection selection means. 7, 8, and turn lamps 9, 10.

The flasher section 63 includes a diode D 1 , a diode D ₂ , a resistor R ₁ , and a diode D ₂ constituting connection selection means.
A transistor Q ₁ and a diode D ₃ are installed inside. The cathode of the diode _D1 is connected to the left contact 41 of the turn switch 4, and the diode
The cathode of D ₂ is connected to the right contact 42 .

One end of the resistor _R1 is connected to one end of the hazard switch 12, and the other end of the resistor _R1 is connected to the base of the transistor _Q1 . The emitter of transistor _Q1 is connected to the secondary side of ignition switch 1, and the collector of transistor _Q1 is connected to the cathode of diode _D3 .
When the hazard switch 12 is turned on, the transistor _Q1 is turned on and power is supplied to the diode _D3 . Further, the anodes of these diodes D ₁ , D ₂ , D ₃ are connected to the coils of the relays 7 and 8, and when at least one of the diodes D ₁ , D ₂ , and D ₃ is supplied with power, the relays 7 and 8
Activate.

Next, the operation of this configuration will be explained.

First, when the ignition switch 1 is turned on when the hazard switch 12 is off and the turn switch 4 is located at the neutral point, the diode D ₁ ,
Since power is not supplied to D ₂ and D ₃ , power is supplied from the battery 2 to the turn lamps 9 and 10 via the b contacts 71 and 81, and the turn lamps 9 and 10 are turned on as daytime running lights.

At this time, for example, when the hazard switch 12 is turned on, the transistor _Q1 is turned on and power is supplied to the diode _D3 , so the relays 7 and 8 are activated, and the common contacts 73 and 83 and the corresponding a contact 72 , 82 are connected. Furthermore, since a flashing signal is output from the flasher section 6, the left and right turn lamps 9 and 10 flash simultaneously. Also, when the hazard switch 12 is turned off, the relays 7 and 8
stops operating, and the turn lamps 9 and 10 are turned on again.

In this way, by detecting the ON state of the switch means by the blinking detection means provided in the flasher section 63, the blinking signal of the flasher section 63 can be indirectly detected.

Similarly, when the turn switch 4 is turned on to either the left contact 41 or the right contact 42, one of the turn lamps 9 and 10 blinks in response to the turn on of the turn switch 4.

[Effect of idea]

Although this invention is equipped with a switch means of simple construction, it is possible to light up a turn lamp when the ignition switch is turned on, and to make the turn lamp blink when the switch means is operated. Therefore, the number of switches as switching means and the number of wires leading to the switches can be reduced, and costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a first embodiment according to this invention, FIG. 2 is a block diagram of a second embodiment according to this invention, and FIG. 3 is a timing chart explaining the operation of the embodiment of FIG. 1. FIG. 4 is a configuration diagram of a conventional vehicle headlamp control device. 1...Ignition switch, 4...Turn switch, 6...Flash section, 7, 8...Relay, 9, 10...Turn lamp, 12...Hazard switch, 13...Pulse conversion means.

Claims (1)

[Scope of utility model registration request] A vehicle headlight control device that lights turn lamps disposed on the left and right sides of the vehicle body as daytime running lights when an ignition switch is turned on, the switch means for blinking the turn lamps; A flasher section that outputs a blinking signal of the turn lamp based on the operating signal from the switch means, a blinking detection section that detects the blinking signal of this flashing section, and when the blinking detection signal of this blinking detection section is input. A headlight control for a vehicle, characterized in that a connection selection means is provided for connecting the flasher section and the turn lamp, and for turning on the turn lamp when input of the flashing detection signal is stopped. Device.