JP2005145115A - Automatic headlamp lighting device for vehicles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic headlamp lighting device for a vehicle positively executing a turned-on state of a daylight without requiring any light switch operation performed by a driver. <P>SOLUTION: This automatic headlamp lighting device comprises a lamp switch 4 for turning on/off the headlamps 1, 1, an engine starting state sensing means 9 for sensing the engine starting state, a control circuit 5 for performing an automatic lighting of the headlamps 1, 1 under a turned-off state of the lamp switch 4 when the engine starting state is sensed by the engine starting state sensing means 9, and a cancel switch 6 for canceling an automatic operation of the control circuit 5. A compartment lamp 3 such as an instrument board or the like is turned off when the headlamps 1, 1 are automatically turned off by the control circuit 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle headlamp automatic lighting device, and more particularly to an improved technique for performing daylight-on (exercise that always turns on a headlamp even during daytime driving), which is performed in a taxi or the like.

  Conventionally, as a headlamp automatic lighting device for a vehicle, a vehicle speed sensor that detects whether the vehicle is in a stopped state or a running state, a light switch that operates on / off of the headlamp, and a time when the light switch is on, In addition, a push switch that can be used to turn the headlamp on / off in priority to the light switch only when the vehicle is stopped, and forgetting to turn on the headlamp when the vehicle starts running from a stopped state with the headlamp turned off. (For example, refer to Patent Document 1). Conventional example 1 is disclosed.

  Therefore, in a vehicle to which the device of the conventional example 1 is applied, if the headlamp is switched on by operating the light switch after the engine is started, the lighting will be forgotten when the vehicle starts running from this state. Since the headlamp is automatically turned on by the prevention control unit and the headlamp is automatically turned off when the vehicle is stopped, daylight-on can be executed.

  In addition, as a device for automatically dimming or turning off the headlamps lit by the light switch operation, the vehicle is stopped (conditions: vehicle speed zero, shift lever P (park), N (neutral), parking brake on or foot brake) A headlamp control device is disclosed in which the headlamp is automatically dimmed or turned off when turned on, while the headlamp is automatically turned on at the start of a vehicle lacking any of the vehicle stop state conditions (for example, (See Patent Document 2.) Conventional Example 2.

  Therefore, in a vehicle to which the device of Conventional Example 2 is applied, if the headlamp is turned on by operating the light switch after the engine is started, any of the vehicle stop state conditions is missing. When the vehicle starts running, the headlamp is automatically turned on, and when the vehicle is stopped (the vehicle is stopped), the headlamp is automatically turned off or dimmed. it can.

JP 2002-2370 A JP-A-8-332888

However, in the conventional examples 1 and 2, since it is a condition to manually turn on the light switch in order to execute daylight on, it is troublesome and the light switch operation is performed. There is a possibility to forget.
And since daylight-on is to keep the headlamps lit during the day, it is very difficult for the driver to determine whether the headlamps are lit or not at night. There is a high possibility that the user will not notice that the operation has not been performed and the vehicle will run for a long time, and thus it is difficult to reliably perform daylight on.

  The present invention has been made paying attention to the above-mentioned conventional problems, and provides a vehicle headlamp automatic lighting device capable of reliably performing daylight-on without requiring a light switch operation by a driver. It is intended to do.

  In order to achieve the above object, the vehicle headlamp automatic lighting device according to claim 1 of the present invention is a vehicle headlamp automatic lighting device that automatically switches at least on / off of a vehicle headlamp. A lamp switch for turning on and off the headlamp; engine start state detecting means for detecting a start state of the engine; and when the engine start state is detected by the engine start state detecting means, the head is at least in the off state of the lamp switch. And a control means for automatically lighting the lamp.

  The vehicle headlamp automatic lighting device according to claim 2 is the vehicle headlamp automatic lighting device according to claim 1, wherein when the headlamp is automatically turned on by the control means, an indoor lamp such as a meter panel is turned off. It was constituted as described above.

  The vehicle headlamp automatic lighting device according to claim 3 is the vehicle headlamp automatic lighting device according to claim 1 or 2, further comprising a cancel switch for canceling the control operation of the control means. A feature means.

  A vehicle headlamp automatic lighting device according to a fourth aspect of the present invention is the vehicle headlamp automatic lighting device according to any one of the first to third aspects, wherein when the lamp switch is in an ON state, The means is configured to cancel the control operation.

  The vehicle headlamp automatic lighting device according to claim 5 is the vehicle headlamp automatic lighting device according to any one of claims 1 to 4, wherein the ignition switch start position detecting means detects the ignition switch start position. The control means is configured to cancel the control operation of the control means while the ignition switch start position detection means detects the ignition switch start position.

  In the vehicle headlamp automatic lighting device according to the first aspect of the present invention, as described above, when the engine start state is detected by the engine start state detecting means, the headlamp is automatically turned on at least when the lamp switch is off. By adopting the configuration in which the control means is provided, there is an effect that the daylight-on can be surely executed without requiring a light switch operation by the driver.

  The vehicle headlamp automatic lighting device according to claim 2, wherein when the headlamp is automatically turned on by the control means, the indoor lamp such as a meter panel is turned off. Since it can be recognized that the lamp is automatically turned on, it is possible to prevent the headlamp from being turned off unexpectedly.

  The automatic headlamp lighting device for a vehicle according to claim 3 is provided with a cancel switch for canceling the control operation of the control means, thereby facilitating confirmation of headlamp lighting by the lamp switch during vehicle inspection and maintenance. Will be able to.

  5. The vehicle headlamp automatic lighting device according to claim 4, wherein the control means cancels the control operation of the control means when the lamp switch is in the on state, so that the special control by the control means is not required. Can be automatically canceled and returned to the normal state.

  6. The vehicle headlamp automatic lighting device according to claim 5, wherein the battery at the time of driving the cell motor is canceled by canceling the control operation of the control means while the ignition switch start position detecting means detects the ignition switch start position. The voltage drop can be prevented.

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

The vehicle headlamp automatic lighting device of this embodiment corresponds to the invention described in claims 1 to 5.
First, the vehicle headlamp automatic lighting device of this embodiment will be described with reference to the drawings.

  FIG. 1 is a light circuit diagram to which the vehicle headlamp automatic lighting device of this embodiment is applied. In this figure, 1 and 1 are left and right headlamps, 2 is a tail & clearance lamp, 3 is an indoor lamp, 4 Is a light switch, 5 is a control circuit (control means), 6 is a cancel switch, 7 is a vehicle speed sensor, 8 is an ignition switch start position detecting means, and 9 is an engine start state detecting means.

More specifically, the indoor lamp 3 is illumination that can be turned on and off in the passenger compartment, such as illumination on a meter panel.
The light switch 4 is a switch for switching on / off the left and right headlamps 1, 1, tail & clearance lamp 2, and indoor lamp 3, OFF, 1 step (ON), 2 steps (ON) And high-beam fixed M, low-beam fixed D, and passing P can be switched.

  In the control circuit 5, the vehicle speed sensor 7 for detecting the running / stopping state of the vehicle, an ignition switch start position detecting means 8 for detecting the ignition switch start state, and an engine starting state detecting means 9 for detecting the engine starting state. By controlling the relays RL1, RL2, RL3, RL4 based on the signal from the headlamp 1, automatic switching control of turning on, dimming, and turning off the headlamps 1, 1 is performed.

  The cancel switch 6 is interposed in the middle of the drive power supply circuit to the relays RL1, RL2, RL3, and RL4. By operating the cancel switch 6, the headlamps 1 and 1 are turned on by the control circuit 5. The automatic switching control for dimming and extinguishing is canceled.

  When the light switch 4 is in the ON state, the automatic switching control of turning on, dimming, and turning off the headlamps 1 and 1 by the control circuit 5 is cancelled.

Next, the contents of the control operation in the control circuit 5 will be described based on the control flowchart of FIG. 2 and the relay operation status diagram of FIG.
In step S101, it is determined whether or not the engine is in a starting state. When the engine is in a stopped state (NO), the process proceeds to step S102, and all the relays RL1, RL2, RL3, and RL4 are turned off (FIG. 1). As shown in FIG. 4, all the left and right headlamps 1, 1, the tail & clearance lamp 2, and the indoor lamp 3 are turned off.

If the determination in step S101 is the engine start state (YES), the process proceeds to step S103.
In step S103, it is determined whether or not at least one of cancellation conditions 1, 2, and 3 listed below is satisfied.
1. Cancellation condition 1 is satisfied: Cancel switch 6 is ON.
2. Cancel condition 2 is established: The light switch 4 is in the first stage (ON) or the second stage (ON).
3. Cancellation condition 3 is met: Ignition switch start position.
If the determination in step S103 is true (YES), the process proceeds to step S102, where all the left and right headlamps 1, 1, tail & clearance lamp 2, and indoor lamp 3 are turned off. It becomes.

If the determination in step S103 is not established (NO), the process proceeds to step S104.
In this step S104, it is determined whether or not the vehicle is in a traveling state based on a vehicle speed signal from the vehicle speed sensor 7. When the vehicle is in a traveling state (YES), the process proceeds to step S105 and only the headlamps 1 and 1 are turned on. That is, both the headlamps 1 and 1 are connected in parallel by turning on the relays RL1, RL2, and RL3 and turning off RL4.

  When the vehicle is in a stop state (NO), both the headlamps 1 and 1 are connected in series by turning off the relay RL1 and turning on the RL2, RL3, and RL4, so that the dimmed lighting state is obtained.

Next, the operation and effect of this embodiment will be described.
Since the vehicle headlamp automatic lighting device of this embodiment is configured as described above, the headlamps 1 and 1 are automatically dimmed when the engine is started (steps S101 → S103 → S104 → S106). When the vehicle is started in this state, the headlamps 1 and 1 are automatically switched on (steps S101 → S103 → S104 → S105).
Therefore, there is an effect that the daylight-on can be surely executed without requiring the driver to operate the light switch 4. (Corresponding to claim 1).

  Further, as described above, when the head lamps 1 and 1 are automatically turned on or dimmed by the control circuit 5, the indoor lamps 3 such as the meter panel remain turned off. It is possible to recognize that the lamps 1 and 1 are automatically turned on or dimmed, and thus it is possible to prevent unexpected headlamp turn-off. (Corresponding to claim 2).

Further, when the vehicle is stopped with the operation of the control circuit 5 while the headlamps 1 and 1 are automatically lit, the headlamps 1 and 1 are automatically switched from lighting to dimming (steps S101 → S103 → S104 → S106 flow).
Accordingly, it is possible to suppress battery consumption when the vehicle is stopped.

Further, by operating the cancel switch 6, the control operation of the control circuit 5 as described above is canceled (the flow of steps S101 → S103 → S102).
Therefore, it is possible to make it easier to check the lighting of the headlamps 1, 1, etc. by the lamp switch 4 during vehicle inspection and maintenance. (Corresponding to claim 3).

Further, when the lamp switch 4 is in the first stage (ON) or the second stage (ON), the control operation of the control circuit 5 as described above is canceled (the flow of steps S101 → S103 → S102).
Accordingly, the special control (control for automatically turning on or turning off only the headlamps 1 and 1) by the control circuit 5 can be automatically canceled without returning to a normal state without requiring any special operation. become. (Corresponding to claim 4).

Further, while the ignition switch start position is detected, the control operation of the control circuit 5 is canceled (the flow of steps S101 → S103 → S102).
Accordingly, it is possible to prevent the battery voltage from being lowered when the cell motor is driven. (Corresponding to claim 5).

Although the embodiments have been described with reference to the drawings, the specific configuration is not limited to these embodiments.
For example, in the embodiment, when the headlamp is automatically turned on by the control circuit 5, the indoor lamp 3 such as the meter panel is turned off so that the driver can recognize it. In conjunction with the operation, when the engine is in the OFF state (controlled by the control circuit 5), the fact may be displayed, for example, in the meter panel by lighting the lamp.

It is a light circuit diagram to which the vehicle headlamp automatic lighting device of the embodiment is applied. It is a flowchart which shows the control action of the control circuit in the headlamp automatic lighting device for vehicles of an Example. It is a relay operation condition figure in the headlamp automatic lighting device for vehicles of an example.

Explanation of symbols

1 head lamp 2 tail & clearance lamp 3 indoor lamp 4 light switch 5 control circuit (control means)
6 Cancel switch 7 Vehicle speed sensor 8 Ignition switch start position detection means 9 Engine start state detection means RL1 Relay RL2 Relay RL3 Relay RL4 Relay

Claims (5)

In a vehicle headlamp automatic lighting device that automatically switches at least on / off of a vehicle headlamp,
A lamp switch for turning the headlamp on and off, and
Engine start state detecting means for detecting the engine start state;
Control means for automatically turning on the headlamp when the engine start state is detected by the engine start state detection means, at least when the lamp switch is off;
An automatic headlamp lighting device for a vehicle, comprising:   2. The vehicle headlamp automatic lighting device according to claim 1, wherein when the headlamp is automatically turned on by the control means, an indoor lamp such as a meter panel is turned off.   The vehicle headlamp automatic lighting device according to claim 1 or 2, further comprising a cancel switch for canceling a control operation of the control means.   The vehicle headlamp automatic lighting device according to any one of claims 1 to 3, wherein the control operation of the control means is canceled when the lamp switch is in an ON state. The ignition switch start position detecting means for detecting the ignition switch start position is provided,
5. The apparatus according to claim 1, wherein the control operation of the control unit is canceled while the ignition switch start state detection unit is detecting an ignition switch start position. The vehicle headlamp automatic lighting device as described.

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