KR890007132Y1 - Circuit for remote start of engine - Google Patents

Abstract

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Description

Remote start circuit of internal combustion engine

1 is a detailed circuit diagram of an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: transmitter side circuit 2: receiver side circuit

3: push button switch 4: oscillation circuit

11 receiver 12 safety circuit

13: engine monitoring circuit T: timer

FF ₁ : 1st flip flop FF ₂ : 2nd flip flop

FF ₃ : third flip-flop MM: monostable multivibrator

30: side brake switch 31: gear switch

37: generator 38: noise blocking circuit

42: delay circuit AND ₁ to AND ₃ : AND gate

OR ₁ to OR ₅ : ORGATE NOR: NORGATE

IN ₁ : Inverter B ₁ ~ B ₅ : Buffer

RY ₁ to RY ₄ : Relay C ₁ to C ₄ : Condenser

VR ₁ : Variable resistor R ₁ to R ₃ : Resistance

The present invention relates to a remote start circuit of an internal combustion engine, and in particular, it is possible to start or stop an engine of a car or an internal combustion engine by remote operation.

It has conventionally been started by remote operation of an internal combustion engine.

For example, if you use a car in the winter, you have to walk for a while until the engine warms up.

It was cold, but I had to go outside and hang the engine on purpose.

So it goes without saying that it is very desirable to be able to hang your car's engine indoors.

In addition, it is of course desirable to be able to start the internal combustion engine not only in the automobile but also by remote operation in another place.

Therefore, it has conventionally been proposed to start the internal combustion engine by remote operation, but it has not been put to practical use yet.

In other words, in order to start the engine of a car or an internal combustion engine, it is necessary to leave the engine for a while until it warms up, and to go outside in the cold winter, hang the engine and wait in the air. There was an uncomfortable problem that the driver must go to the outside to start the engine.

The present invention has been made to solve such a conventional problem, and in particular, the present invention provides a transmitter-side circuit that emits a pulse each time a pushbutton switch is pressed and a receiver-side circuit that receives and operates the pulse. It is an object of the present invention to provide a remote starting circuit of an internal engine so as to start or stop the engine of an automobile or an internal combustion engine by the number of push button switches.

When described in detail according to an embodiment attached to this as follows.

1 is composed of a transmitter side circuit 1 for transmitting a pulse from the oscillation circuit 4 each time the push button switch 3 is pressed and a receiver side circuit 2 for receiving and operating this pulse. The receiver side circuit 2 is configured as follows.

First flip-flop (FF ₁₎ and the first flip-flop monostable multivibrator (MM) and said monostable multivibrator (MM) operated by the inverted output from the (FF ₁₎ to invert the output to the first pulse The second flip-flop FF ₂ and the start of the vehicle engine, which enable the relay RY ₂ and the start motor to operate, and the delay circuit 42 to operate the circuit of the ignition coil. An engine monitoring circuit comprising a delay circuit 42 that can adjust the output time of the generator 37 through the generator 37 and the noise blocking circuit 38 that generate the generator, and an inverter IN ₁ and a NOR gate NOR. 13) and the output of the engine monitoring circuit reset the monostable multivibrator (MM) and reset the second flip-flop (FF ₂ ) when any one of the side brake switch and the gear switch is removed. Giving Id brake switch 30, the gear switch 31, an OR gate (OR ₁₎ (OR _2), the safety circuit 12 and the push button, when there is the engine start-up to normal according to the push times of the switch (3) to A third flip flop (FF ₃ ), an end gate (AND ₁ ), a condenser (C ₄ ), and a buffer (B ₁ ) are configured to sound the horn and to stop the horn when the engine is not started. In addition, the timer T is configured to stop the engine by resetting the first flip-flop FF ₁ and the second flip-flop FF ₂ after the timer elapses, and automatically generates a heater and a cooler by starting the engine. The AND gate AND ₃ , the buffer B ₅ , and the relay RY ₄ are configured to operate the lamp.

The receiver side circuit 2 configured as described above is connected to each of the horn circuit start motor driving circuit, the ignition operation circuit, and the choke control circuit, the heater, the cooler circuit, and the like as necessary.

However, the remote control (remote start) may be anything, such as wireless, wired, light.

In this embodiment, this is the case of wireless.

In either case, if the transmitter-side circuit 1 has an oscillation circuit 4 that emits a pulse each time the push-button switch 3 is pressed, the receiver-side circuit 2 presses the push-button switch 3. The first JK flip-flop FF ₁ is configured to receive a pulse wave generated each time by the receiver 11 to generate a pulse across the resistor R ₁ , and to control and invert the pulse voltage.

The output of the terminal Q of the first flip-flop FF ₁ is applied to the clock C terminal of the monostable multivibrator MM and is delayed by the resistor R ₂ and the capacitor C ₂ . It is applied to the clock C terminal of the flip-flop FF ₂ .

When a signal is applied to the input clock C terminal of the monostable multivibrator MM, the resistance is adjusted by the resistor R ₃ and the condenser C ₃ so that the output becomes a high level for several seconds.

Thus, the output of the monostable multivibrator MM is applied to the relay RY ₂ via the buffer B ₃ and simultaneously applied to the start motor.

In addition, it is applied to the choke control relay (not shown in the drawing) installed in a car other than the oat choke through the buffer B ₃ , and is not used in the case of an oat choke car because it is not necessary.

In either case, the start motor and choke control relay operate while the high level is output to the output Q terminal of the monostable multivibrator 14.

However, S ₁ to S ₄ of the symbols shown in the drawings are relay contact switches that are automatically connected when the relays RY ₁ to RY ₄ operate.

In practice, the relay contact simply connects the terminal installed at the lead wire end to the lead wire to the start motor of the vehicle.

Of course, this embodiment is intended to be installed in an existing vehicle, and when this circuit is assembled in the vehicle from the beginning, other output terminals are the same, but are connected to each circuit of the vehicle in advance.

On the other hand, the second JK flip-flop FF ₂ is composed of a resistor R ₂ and a capacitor C ₂ , which are delay circuits, so as to operate slightly later than the monostable multivibrator MM.

Thus, the output of the second flip-flop 16 is applied to the ignition coil while being applied to the relay RY ₃ through the buffer B ₄ .

That is, when the pushbutton switch 3 is pressed once in this way, the start motor of the vehicle rotates, and a pulse is applied to the Ignisshon coil to start the engine.

In this case, when the engine is caught again, a dangerous state is established so that the engine is not caught even by the above operation.

The safety circuit will be described.

The vehicle is usually provided with a side brake switch 30 which is turned on when the side brake is pulled and a gear switch 31 which is turned on when the gear is in the position of the bunking or neutral.

Among these switches (side brake switch, gear switch), even when one switch is turned off, the high level is output to the OR gate OR ₁ .

The output high rebe is applied to the reset R terminals of the first and third flip-flops FF ₁ and FF ₃ through the or gate OR ₂ and at the same time, the OR gate OR ₃ and OR ₄ ) (OR ₅ ) to the reset R terminal of the monostable multivibrator MM and the reset R terminal of the second flip-flop FF ₂ .

That is, when one of the switches (side brake switch 30 and gear switch 31 is turned off in this way, that is, when the side brake switch 30 is not pulled, when the gear is connected to the engine, the first, Since the second flip-flops FF ₁ and FF ₂ and the monostable multivibrator MM do not operate, the engine does not start.

This prevents the accident that the engine suddenly starts to move when the engine is started by remote operation.

On the other hand, it is not desirable to operate the start motor indefinitely after the engine is running normally.

Therefore, in the present embodiment, the engine monitoring circuit 13 is configured to reset the monostable multivibrator MM by using the generator 37 coupled to the engine and generating power by the operation.

This engine monitoring circuit is composed of a generator 37, a noise blocking circuit 38, a delay circuit 42 composed of an inverter IN ₁ , a variable resistor VR ₁ , a capacitor C ₁ , and a NOR gate. do.

The output of the NOR gate NOR is applied to the reset R terminal of the monostable multivibrator MM via the OR gate OR ₄ .

This embodiment, so we use a generator (37) of the positive output, but inverts the polarity by the inverter (IN _1), when used in the negative does not necessarily preclude the need to say, the inverter (IN _1).

Of these circuits, the delay circuit 42 is configured to take time until the engine is completely started, and it is possible to adjust the time with the variable resistor VR ₁ until the engine of the vehicle is caught. To respond to changing time.

As described above, the monostable multivibrator MM returns to its original state after a few seconds.

Therefore, the output of the OR gate OR ₅ is connected to the reset R terminal of the second flip-flop FF ₂ , and one input of the AND gate AND ₂ is output to the output terminal Q of the monostable multivibrator MM. The _second gate is connected to the other inverter IN ₁ of the AND gate AND ₂ , and when the engine is started by pressing the push button switch 3, the engine does not start even when the engine is started. Flip-flop FF ₂ can be reset.

The reset condition of the second flip-flop FF ₂ is vice versa because the engine does not rotate completely spontaneously when the monostable multivibrator MM returns as described above. When the engine is completely rotating at the time of return, the second flip-flop FF ₂ is not reset and voltage can be continuously supplied to the Ignission coil.

In this embodiment, the third flip-flop (FF ₃ ), the end gate (AND ₁ ), the condenser (C ₄ ) and the beep sound when the engine is operating normally by pressing the push button switch 3 twice. It consists of a buffer (B _1).

Therefore, when the first flip-flop FF ₁ is inputted to the clock C terminal of the third flip-flop FF ₃ while the output is inverted, the output of the third flip-flop FF ₃ is the AND gate AND _1. ) is input to the one terminal, the other input terminal of the aND gate (aND ₁₎ because there is a signal output from the NOR gate (NOR) is input in the aND gate (aND _1), a high signal is output.

The output high signal causes the condenser C ₄ to operate the relay RY ₁ through the buffer B ₁ to sound the horn, and the condenser C ₄ to instantly sound and stop the horn.

On the other hand, when the engine is not started, the output of the NOR gate becomes low level and the low level is output from the AND gate AND ₁ so that the horn does not sound.

As described above, the engine may be hung by pressing the second push button switch 3 when the engine is walked, but when the engine is close to the vehicle, the engine sound is heard and when the engine is far away, the horn is not heard. In some cases, the description of this horn is omitted.

This embodiment prepares the timer T to start operation again by the operation of the first flip-flop FF ₁ , and after the time elapses by the timer, the first and second flip-flops through the or gate OR ₂ . (FF ₁ ) and (FF ₂ ) are reset to stop the engine.

The timer T is set at 10 to 15 minutes and corresponds to a case where the engine is forgotten while the engine is suspended.

Furthermore, in this embodiment, a circuit for automatically starting operation of a heater, a cooler, or the like by starting the engine without a power supply such as a heater or a cooler is configured.

This circuit configuration is composed of an AND gate AND ₃ and an input buffer B ₅ which input the output wave of the second flip-flop FF ₂ , and the output of this AND gate AND ₃ is at a high level. Since the engine starts to rotate to normal, there is no problem to operate the heater or cooler.

Finally, this embodiment brings the terminal K of the first flip-flop FF ₁ to the terminal Q of the third flip-flop FF ₃ and the terminal Q of the first flip-flop FF ₁ . Since it is connected to the gate OR ₃ , the first flip-flop FF ₁ is restored by pressing the push button switch 3 in the transmitter-side circuit 1 for the third time, and the monostable multivibrator MM and By resetting the 2 flip flops (FF ₂ ), the whole can be returned to the original state.

As described above, the push button switch 3 of the transmitter-side circuit 2 is pressed three times as described above. However, since the engine start confirmation is not required, the second press does not have any problem.

In addition, it may be a changeover switch other than the pushbutton switch 3.

As described above, if the pushbutton switch 3 is pressed once, the engine starts and there is a risk of theft if the engine is operated and there is no driver.However, there is a safety circuit as described above. The engine also automatically stops when the gear is in the low guitar, so there is no fear of theft.

Pressing the pushbutton switch twice causes the horn to sound as described above, indicating that the engine is jammed and pressing it three times stops the engine and returns to the original standby state.

As described above, according to the present invention, the engine can be started or stopped by pressing the push button switch of the transmitting circuit, and since the safety circuit is configured, the engine does not start unless the side brake is completely pulled, and the remote operation is performed. As a result, accidents that suddenly start when the engine is started can be prevented.

In addition, even if you do not have a key while the engine is running, the brakes are released and the engine is cut off.

Furthermore, the present invention is designed to operate the start motor by a monostable multivibrator, so that the start motor is not energized to the start motor more than necessary.

Furthermore, by configuring the engine monitoring circuit, if the engine does not run within a certain time, the start motor is stopped and the start motor is not forced to continuously rotate for a long time.

In addition, the engine monitoring circuit can adjust the time until it outputs, so the engine can be reliably rotated by rotating the start motor slightly in a place where it is difficult to catch the engine.

Claims (1)

Transmitter side circuit 1 that sends out pulses as the pushbutton switches are pressed, first flip-flop FF ₁ that inverts the output with the first pulse, and a monostable multivibrator that operates by inverting the output of the flip-flop. ), The drive relay (RY ₂ ) for operating the start motor by the operation of the monostable multivibrator, the drive relay (RY ₃ ) for operating the ignition coil according to the output signal of the second flip-flop (FF ₂ ), An engine monitoring circuit 13 comprising a generator 37 for generating a voltage by starting an automobile engine, a delay circuit 42 for adjusting the output time of the generator, and an output of the engine monitoring circuit. And a safety circuit (12) for resetting at least the second flip-flop (FF ₂ ) when the side brake switch (30) and the gear switch (31) are released. A remote start circuit of an internal combustion engine, characterized by comprising a transmitter circuit (2).