JPS6288633A - Automatic light-out device associated with delay timer - Google Patents

Abstract

PURPOSE:To alarm unlocked door thus to achieve safe behavoir in a garage requiring no lock by putting out the lamp after a predetermined time if any door is unlocked when getting out of a vehicle while turning off an ignition key. CONSTITUTION:Off signal from an ignition switch SW1 and a driver seat door open signal SW2 are fed as get-out signals to a logic unit 11. When a door locking signal SW3 is transmitted as a signal representing a condition where all doors are locked and fed to the logic unit 11, a lamp drive circuit is disabled to unlight a head lamp L1 and a tail lamp L2. While when the door lock signal SW3 is provided as an off-condition signal, a timer 12 is started and upon elapse of a time interval predetermined by a clock signal from an oscillator 13, a command for disabling a lamp drive circuit 2 is fed from the logic unit 11 thus to said lamp. Consequently, door locking is never missed resulting in antitheft.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is an automatic light extinguishing device with a delay timer, which turns on tail lamps and head lamps for a predetermined period of time, especially when a car door is left unlocked. The present invention relates to an automatic light extinguishing device with a delay timer.

[Prior Art] After turning off the ignition switch, the driver often leaves the vehicle unattended with the headlamp or sole lamp of the driver turned on.

If a car is left with such a lamp on, the so-called "depleted battery" will occur, making it impossible to drive the car the next time. Therefore, in order to prevent such lamps from being left on, automatic light-off devices are being provided.

This automatic lights-off device automatically turns off the tail lamps and headlamps by turning off the ignition switch and then changing the driver's door from an open state to a closed state.

[Problems to be solved by the invention] However, in the conventional automatic light extinguishing device, after the ignition switch is turned off and the engine is stopped,
The lamp is simply turned off automatically almost instantaneously in response to the opening/closing status of the driver's door (the door closest to the driver's seat).

So, for example, if you park in a locked parking lot,
At night, the inside of the garage is dark, and if the car's lights go out, you have to grope your way to the entrance to the parking lot. Therefore, even if there is something under their feet, they often do not notice it, which is extremely dangerous.

On the other hand, if you leave the car without locking the doors, current e-cars do not have any means to warn you that the doors are unlocked. Have your things stolen or your vJrs themselves? There is a high risk of suffering from J.

Therefore, it is an object of the present invention to have a function to warn the unlocked state of the door, and also to provide a delay function that can illuminate the surrounding area for a certain period of time in a place where a door lock is unnecessary, such as a locked parking lot. An object of the present invention is to provide an automatic light-off device with a timer.

[Means for Solving the Problems] The automatic light extinguishing device with a delay timer according to the present invention turns off at least one of the doors of a car after the ignition switch is turned off and the door closest to the driver's seat is changed from an open state to a closed state. When one of the doors is unlocked, the lit lamp is turned off after a predetermined time has elapsed, and when all doors are locked, the light is turned off almost instantly when the door is closed. This is how it was done.

[Operation] When at least one of the doors is in the unlocked state, the lamp is lit for a predetermined period of time, so that the driver can notice that the door is in the unlocked state by lighting the lamp.

Additionally, in places where locking the door is unnecessary, such as a locked parking lot, the door is often left unlocked, and in this case, the lamp remains on for a predetermined period of time, so the surrounding area is It is bright and drivers can move safely.

Furthermore, since the lamp automatically turns off after at least a certain period of time, it is possible to prevent the battery from running out due to forgetting to turn off the lamp.

[Embodiment 1 of the Invention] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing a schematic configuration of an automatic lights-off device with a delay timer, which is an embodiment of the present invention.

In FIG. 1, an automatic light extinguishing device with a delay timer includes a control device 1 and a lamp drive circuit 2. As shown in FIG.

The control device 1 determines whether or not to automatically turn off the lights based on the supplied signal, and when automatically turning off the lights, determines whether or not to delay the lights by a predetermined time.
Logic unit 11 that outputs a signal according to the determination result
Then, it is activated in response to a signal from the logic unit 11 to automatically turn off the light after a certain time delay, and counts the time.
It is comprised of a timer 12 that generates a signal indicating that a predetermined time has elapsed, and an oscillator 13 that generates a clock signal for the timer 12. logical unit 11
The following four signals are given to

■Ignition switch SW via input terminal T1
1 (hereinafter referred to as an ignition switch signal) indicating whether the ignition switch is in the on state; ■ a signal indicating whether the driver's door is open due to the driver's door switch SW2 provided via the input terminal T2; (
(hereinafter referred to as driver's door switch signal), ■Input terminal T
A signal indicating whether all the doors are locked or not (hereinafter referred to as a door lock switch signal) by the door lock switch SW3 given through the input terminal T4, and a tail lamp by the tail lamp switch SW/l given through the input terminal T4. A signal indicating whether or not L2 is lit (hereinafter referred to as tail lamp switch signal).

The lamp drive circuit 2 includes a transistor switch Tr1.
Contains Tr2. Transistor switch Tr1, Tr2
Both receive signals from logic unit 11 at their bases. One conduction terminal of the transistor switch Tr1 is connected to the input terminal T4, and the other terminal is connected via the output terminal T5 to the relay coil of the relay switch R1 for lighting the tail lamp L2. One conduction terminal of the transistor switch Tr2 is connected via an output terminal T7 to one terminal of a headlamp switch SW5 for turning on and off the headlamp. The other terminal of the headlamp switch SW5 is grounded. Further, the other terminal of the transistor switch Tr2 is connected to a relay switch R2 for lighting the headlamp L1 via an output terminal T6.
Connected to the relay coil section. relay switch R1,
One terminal of R2 is connected to power supply +B. Here, when the head lamp L1 is normally lit, the tail lamp L2 is also lit.

Figures 28 to 2C are signal waveform diagrams showing the operation of the device shown in Figure 1, Figure 2A shows the operation when the light is automatically turned off due to the door lock, and Figure 2B is the signal waveform diagram showing the operation of the device shown in Figure 1. The operation when the light is automatically turned off is shown, and FIG. 2C shows the operation when the light is automatically turned off when the door is locked from the outside. Hereinafter, the operation of the automatic ura light device with a delay timer according to the present invention will be explained with reference to FIG. 1 and FIGS. 28 to 2C.

First, with reference to FIG. 1 and FIG. 2A, the operation when automatically turning off the lights when all the doors are locked will be described.

By turning off the ignition switch SW1, the ignition switch signal changes from the on state to the off state,
It is applied to the logic unit 11 via the input terminal T1.

Next, the driver's door is in the open state, and the driver's door switch SW2 is connected to the open state H via the input terminal T2.
A signal indicating that the door switch is on is given to the logic unit 11. Next, a signal indicating that all doors are locked is applied by door lock switch SW3 to logic unit 11 via input terminal T3. Next, when the driver's door is closed again, the logic unit 11 determines that all the doors are locked and the driver has exited the vehicle, and deactivates the lamp drive circuit 2. Lamp L1゜Turn off tail lamp L2. The above is the operation when the lights are automatically turned off by locking the door.

Next, with reference to FIG. 1 and FIG. 2B, a description will be given of delayed automatic light-off when the timer is activated.

First, a signal indicating that the ignition switch is turned off and the engine is stopped (off state signal) is applied from the ignition switch SW1 to the logic unit 11 via the input terminal T1. Next, the driver's door is opened (door switch SW2 is on) and the door switch S is turned on again.
A signal indicating that W2 is in the closed state is sent to logic unit 1.
1, logic unit 11 determines that the driver has exited the vehicle. At this time, since the door is not locked, a door lock switch signal in an OFF state is applied to the logic unit 11 from the door lock switch SW3 via the input terminal T3. Logic unit 11 activates timer 12 upon receiving a signal indicating that the driver has exited the vehicle and that at least one door is unlocked. Timer 12 counts the number of pulses of the clock signal provided from oscillator 13 and provides a signal to logic unit 11 indicating that a predetermined time has elapsed. The logic unit 11 receives a signal from the timer 12 indicating that a predetermined time (1 second) has elapsed and disables the lamp drive circuit 2 which is in the active state. As a result, the lit lamp L1. L2 automatically turns off one second after the driver gets off the vehicle. The above is the operation when automatically turning off the light using a timer.

Next, referring to FIG. 1 and FIG. 2C, an explanation will be given of the operation when the light is automatically turned off when the door is locked from the outside. First, when the ignition switch signal changes from an on state to an off state, the logic unit 11 identifies that the engine has stopped. In this state, when the door switch signal changes from the off state to the on state and then returns to the off state, the logic unit 11 determines that the driver has alighted from the vehicle.

Next, when the driver locks the door from the outside, the door lock switch signal is turned on, and the logic unit 11 determines that the door is locked, disables the lamp drive circuit 2, and disables the lamp 11. Turn off L2.

FIG. 3 is a flow diagram showing the operation of the automatic lights-off device with delay timer shown in FIG. 1. Below, Figures 1 and 3
With reference to the figures, the operations described individually in FIGS. 2A, 2B, and 2C will be described as a series of continuous operations.

First, the logic unit 11 receives a signal from the tail switch SW4 applied via the input terminal T4, and determines whether the tail lamp L2 is lit (Sl).

At this time, if the headlamp L1 is normally lit, the tail lamp L2 is also lit. If the tail lamp is not lit, it returns to the initial state.

Next, the tail lamp is on (tail switch SW
4 is in the on state), the logic unit 11 determines whether the ignition switch signal applied via the input terminal T1 has changed from the on state to the off state. If the ignition switch remains on,
Return to initial state. If the ignition switch changes from the on state to the off state, the logic unit 11
determines that the engine has stopped and the vehicle is no longer in operation. Next, it is determined whether the driver's door has changed from the open state to the closed state again based on a signal from the driver's door switch SW2 provided via the input terminal T2 (S3). If the driver's door remains open or closed, the logic unit 11 determines whether the ignition switch SW1 is on (S4). If the ignition switch remains on, the initial state is returned. If the ignition switch is in the off state, the logic unit 11 determines whether or not the tail switch SW4 is in the on state in this state (S
5). If the tail switch SW4 is in the off state, it returns to the initial state. If the tail switch SW4 is in the on state, then it is determined whether all the doors are locked or not based on the door lock switch signal applied via the input terminal T3 (S6). If at least one door is unlocked, the logic unit 11 starts the timer 12 (S7). The timer 12 measures time by counting the number of pulses of the clock signal from the oscillator 13 in response to the activation signal from the logic unit 11 (S8). Next, the logic unit 11 receives the signal from the timer 12 and determines whether a predetermined time has elapsed (39), and if the predetermined time has elapsed, disables the lamp drive circuit 2. By activating lamp L1. Turn off L2 (311). If the predetermined time has not yet elapsed, the logic unit 11 determines whether all doors are locked (510) and disables the lamp drive circuit 2 if all doors are locked. As a result, the lamps 11 and 12 are turned off (811). Here step 10
If all the doors are not yet locked, the process returns to step 8 and the timer 12 continues counting. With the above operation, when the driver gets out of the car with the door unlocked while at least one of the lamps L1 and L2 is on, the lamp will continue to be on for a predetermined period of time. Once all doors are locked, lamp L1. It is possible to automatically turn off L2.

[Effects of the Invention] As described above, in this invention, when at least one of the tail lamp or head lamp is on, all doors are locked when the driver turns off the ignition key and exits the vehicle. The system automatically turns off the lights that are on when the door is unlocked, and keeps the light on for a certain period of time if at least one door is unlocked. If something happens, the lamp will turn on and you will be aware of it, so you won't forget to lock your doors (preventing the risk of things in your car being stolen or your car being stolen). be able to.

Furthermore, in cases where there is no need to lock the door, such as in a garage with a lock, the lamp remains lit for a certain period of time, so the surroundings are bright and the user can move safely.

In addition, it also has an automatic lamp extinguishing function, so
It is possible to prevent the battery from dying due to forgetting to turn off the lamp.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of the configuration of a self-controlled light extinguishing device with a delay timer, which is an embodiment of the present invention. Figures 28 to 2C are signal waveform diagrams showing the operation of the device shown in Figure 1. Figure 2A shows the signal waveform when the light is automatically turned off by locking the door, and Figure 2B shows the signal waveform when the timer is turned off. The operating waveform when the light is turned off automatically when using the 2nd C
The figure is a diagram showing operation waveforms when the lights are automatically turned off when the door is locked from the outside. FIG. 3 is a flow diagram showing the operation of the apparatus shown in FIG. In the figure, 1 is a control device, 2 is a lamp drive circuit, 11
is a logic unit, 12 is a timer, 13 is an oscillator, Tr
l, Tr2 are transistor switches, R1, R2 are relay switches, Ll, L2 are lamps, SWl is the ignition switch, SW2 is the driver's door switch, SW3 is the door lock switch, SW4 is the tail switch, SW5
is a head switch. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. In Figure 2A, a O-t')r: ヱ3h first;-j! lHa 1 Helmet 2B Figure No. 20

Claims (3)

[Claims] (1) An automatic light extinguishing device with a delay timer for delaying and extinguishing a lit lamp when at least one door of a car is unlocked, and whether or not the lamp is lit. a first signal generating means for generating a signal indicating whether the door closest to the driver's seat is open or closed; and a second signal generating means generating a signal indicating the open/closed state of the door closest to the driver's seat; a third signal generating means for generating a signal indicating whether or not the ignition switch is present; a fourth signal generating means for generating a signal indicating the conduction/non-conduction state of the ignition switch for activating the drive source; determining means for determining whether or not to automatically turn off the lamp according to signals from the first, second, third, and fourth signal generating means, and generating a signal according to the determination result; a timer that is activated to count time in response to an automatic light-off instruction signal from the determining means; and a lamp extinguishing means that extinguishes the lamp in response to a signal from the timer indicating that a predetermined time has elapsed. An automatic light-off device with a delay timer. (2) The determining means receives a signal from the first signal generating means indicating that the lamp is on, and a signal from the second signal generating means indicating that the door closest to the driver's seat changes from an open state to a closed state. a signal indicating that the transition has occurred; and at least one signal from the third signal generating means.
When receiving a signal indicating that the door is in an unlocked state and a signal indicating that the ignition switch is in a non-conducting state from the fourth signal generating means, the lamp is turned off with a delay. 2. An automatic lights-off device with a delay timer according to claim 1, which generates an automatic lights-off instruction signal. (3) The automatic light extinguishing device with a delay timer according to claim 1 or 2, wherein the lamp is either a headlamp, a tail lamp, or both of them of an automobile.