JPH03175149A - Remote controller for starting automatic car by remote control - Google Patents

Abstract

PURPOSE:To protect an automatic car against theft without requiring special wiring by connecting to a starter terminal a reset circuit for monitoring the earthed state of the terminal through the transmission switch of the car, and outputting signals when the transmission switch is released so as to restore an ignition relay. CONSTITUTION:A starter terminal 44 is earthed via a transmission relay 7 and a relay 8 when a selector lever is in the position P or N, while when the lever is not in these positions the starter terminal 44 is opened. As a result, the terminal 44 detects the position of the selector lever. An engine is stopped by operating a reset terminal by means of detection of the voltage applied to the terminal 44 so as to restore an ignition relay 12. Even when the engine of a car is started while there is no one in the car, the engine is automatically stopped by shifting of the selector lever to drive D; the car is thereby protected against theft.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is a device for remotely starting the engine of a so-called auto-single-drive vehicle, which has an automatic transmission device that changes the driving mode using a selector lever. Regarding the device.

(Prior Art) It is already known to start an automobile engine by remote control using radio waves, ultrasonic waves, or the like. This is a device that operates a car's ignition circuit by receiving a signal sent from a transmitter with a receiving circuit, and also operates a starter motor for a short period of time.
6-10464, Utsuko Sho 60-23511. Tokukai Showa 5l
-45826).

It is possible to start the engine of an automobile with the remote starting device configured as described above. However, in the case of remote starting, even though there is no one in the car, conventional systems do not take into account theft and the like. Although the timer limits the engine operation period to only 10 or 20 minutes, the risk of theft cannot be eliminated because the vehicle can cover a considerable distance during that time.

Therefore, in order to prevent car theft, we proposed a system in which the engine of an automatic car is automatically stopped when the selector lever is removed from the parking position (Japanese Patent Application Laid-Open No. 63-277858). The risk of theft has been eliminated.

Although this remote starter device is convenient and safe, especially in the winter, since it allows you to start the car's engine from indoors, various studies were conducted to find out why it has not been widely used.

As mentioned above, this remote starting device must detect the position of the selector lever to prevent theft, and detect that the engine has started in order to stop the operation of the starter starter after the engine has started. A detection terminal must be installed on the vehicle's transmission switch or power regulator, etc., and then connected to the device itself using a cord.This wiring work makes it difficult to install the remote start device by yourself even if you purchase it. There was the inconvenience of having to ask a specialist to do the wiring work. This seems to be the biggest reason preventing its spread.

(Problems to be Solved by the Invention) The present invention has been made in consideration of the above points, and does not require special wiring work, can prevent theft, and can be easily installed in a car. An object of the present invention is to provide a remote starting device that can perform the following steps.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides an automatic vehicle in which at least a power supply line, an ignition drive line, and a starter drive line are connected at one place by a detachable connector, and the starter It is limited to use only when a mission switch is connected in series to the drive line (the line where the key switch and the relay that operates the starter motor are connected). Most automatic cars these days are like this, so there is no problem.

The present invention provides a coupler that is inserted between the socket and the plug of the connector and is connected to each line, and the coupler is provided with a terminal that is connected to each line.

Further, the present invention includes an ignition relay that operates for a certain period of time upon receiving a signal from a transmitter, and a starter relay that operates intermittently several times upon reception of the LA signal. In operation with the relay, power is supplied to the ignition drive line and the starter drive line through their respective terminals to start the engine of the automobile.

Further, in the present invention, an ignition relay contact is connected to the ignition terminal connected to the ignition drive line in the terminal, and a starter relay contact is connected to the starter terminal connected to the starter drive line.

Furthermore, in the present invention, a voltage detection circuit is connected to the ignition terminal to detect that the ignition drive voltage has risen above the rated value, and the output of the voltage detection circuit is used to reset the starter relay. It is connected to a reset circuit that monitors the grounding status through the car's mission switch, outputs an output when the me/john switch is opened, and resets the ignition relay.

It goes without saying that the term "relay" used above does not mean only mechanical relays, but also includes relays configured to perform the same operation using semiconductor elements.

(Function) To use this, all you have to do is remove the plug from the socket of the car's connector, insert the coupler of this device between them, and connect the socket and plug again.

Upon receiving the start signal from the transmitter, the ignition relay and starter relay operate to turn on their respective contacts. Therefore, the ignition circuit and starter motor are operated by applying voltage to the respective lines of the automobile through the terminals to which they are connected.

As is well known, when the engine starts operating, the generator operates and the voltage rises, and while the starter motor is operating, the voltage tends to decrease slightly, but when the engine is fully operating, it increases from the rated 12V to about 14V, and the voltage increases. Voltage rides on the ignition drive line. The voltage detection circuit detects this voltage rise and outputs an output to reset the starter relay. Therefore, the operation of the starter motor stops.

As mentioned above, the present invention is used in an automobile in which a transmission switch and a relay in the automobile that drives a starter motor are connected in series. Therefore, the starter terminal of the present invention is grounded via the mission switch and relay when the selector lever is in the parking or neutral position. Furthermore, when the transmission switch is moved from the parking or neutral position, it becomes open. This starter terminal is therefore at ground potential when the selector lever is in the parking or neutral position, and is otherwise supplied with the supply voltage. Therefore, as a result, this terminal can detect the position of the selector lever. When voltage is detected at that terminal, a reset circuit is activated, and the ignition relay is reset, causing the engine to stop. Therefore, even if the engine of an unmanned car is running, if the selector lever is moved to drive, the engine will automatically stop, so there is no risk of a car equipped with this device being stolen.

(Embodiment) As shown in FIG. 2, an automobile using this embodiment has an electrical system connected to it by a removable socket 1 and a plug 2. Most modern cars are like this. This embodiment has a coupler 3 inserted between the socket l and the plug 2, as shown in FIG. It is connected to connector 5.

If there is enough space in the car to accommodate the socket 1 and plug 2, there is no problem in incorporating the main body 4 into the coupler 3, and it goes without saying that the connector 5 is not required in that case.

FIG. 1 shows an example of the electrical circuit of the main body 4.

The Q output of a starting circuit 10 composed of a flip-flop is connected to an ignition relay 12 of the engine via an AND gate 11, and the other outputs are connected to a timer circuit 15. Connected to the input side of the starting circuit 10 is a receiving circuit 14 which receives a signal from a transmitter (not shown) using an antenna 13 and outputs the signal. The above-mentioned flip-flop IO has a reset terminal R.

This timer circuit 15 has two timers, a start timer 15a and an idling timer 15b, and the start timer 15a has a terminal Q that changes from logic "H" to "L".
It is configured to output a pulse three times every four seconds when the current changes to , and the pulse is applied to the starter relay 17 via the AND gate 16.

The above-mentioned AND gate 16 is intended for use with diesel engine vehicles, and has one input as the output of the preheating completion detection circuit 18. In the case of gasoline engine vehicles, one input of this AND gate 16 is always logic "H".
Connect so that

The idling timer 15b has two output terminals TI,
Serving T2. During operation, one terminal Tl is logic “L”
The other terminal T2 is in the logic rHJ state, and the state is reversed when the time-up occurs 10 minutes or 20 minutes after the engine is started. Operating logic r
Since the terminal T2 of the HJ is connected to one input of the anti-gear 11, when the receiving circuit 14 receives the signal, the output of the Q terminal of the starting circuit 10 is inverted, thereby operating the ignition relay 12.

A reset terminal R of the starting circuit 10 is connected to the output of the OR gate 20. This OR gate 20 receives the output of the terminal T1 of the idling timer 15b, the output of the OR gate 21, and the output of the AND circuit 22 as inputs.

As mentioned above, the output of the terminal T1 is the logic rLJ.

The input of the bonnet switch circuit 23 and the brake switch circuit 24 are input from the bonnet switch circuit 23 and the brake switch circuit 24, but these are only installed as options if necessary, and the bonnet switch circuit 23 is not used in principle in the device of the present invention. is logical with the hood open.
H”, logic rLJ when the handbrake is closed, and logic rLJ when the brake switch circuit 24 is pulled up.
In this case, the logic level is set to "H" when the brake is released. Therefore, when this circuit is used, the output of the OR gate 21 is the logic rLJ only when the vehicle is parked with the handbrake pulled and the hood closed. Otherwise, it becomes logic rHJ and resets the starting circuit 10.

The last input of the OR game) 20 is the output of the AND gate 22. This AND gate becomes a logic rHJ when the selector lever of the automobile is in a position other than parking or neutral. The circuit 25 connected to one input of the AND gate 22, ie, the selector lever position detection circuit, will be described below.

This circuit 25 is designed to input a signal through a changeover switch 26, but this is done in response to the fact that the voltage state varies depending on the position of the selector lever depending on the vehicle. However, as mentioned above, in the present invention, which is used only for a specific automobile, this changeover switch is used while being fixed in the state shown in the drawing. However, this embodiment can also be used for other vehicles by switching this changeover switch 26 if additional wiring work is required.

When the changeover switch 26 is in the illustrated state and the terminal 26a is grounded, both input terminals 27a and 27b of the exclusive or 27 are grounded, so the output is logic "L". Terminal 26a of switch 26
When a voltage is applied to
It becomes J.

The main body 4 of this embodiment has five terminals 41 to 45 that are connected to the automobile via the coupler 3. When the coupler 3 is inserted between the socket 1 and the plug 2 as shown in Fig. 3, the terminal 41 is connected to the car's ground line G, the terminal 42 is connected to the power line AM, the terminal 43 is connected to the ignition drive line G, and the terminal 44 is connected to the ignition drive line G. is connected to a starter drive line ST, and a terminal 45 is connected to an accessory line ACC for operating accessories inside the automobile.

There is no need to explain the terminals 41 and 42, but the terminal 43 is an evening terminal for applying the power supply voltage supplied from the terminal 42 to the ignition drive line IG via the evening relay relay 2 contact 12a. It is. Terminal 44 is a starter terminal that similarly supplies voltage to starter drive line ST via contact 17a of starter relay 17.

As shown in FIG. 4, the automobile using this embodiment has a key switch 6, a transmission switch 7, and a relay 8 for operating a starter motor connected in series. Therefore, when this device is used, the starter terminal 44 will be connected to the position shown. That is, terminal 4
4 is grounded through the mission switch 7 and the coil of the relay 8. At this point, when the selector lever (not shown) is put into drive or reverse, the mission switch 7 is turned off. Therefore exclusive sieve or 2
The terminal 27b of 7 becomes the logic rHJ, and the output of the AND gate 22 becomes the logic rHJ. Conventionally, the input of this circuit 25,
That is, the terminal 26 & of the changeover switch z6 was connected directly to the mission switch 7 in Fig. 4 by a cord, but in the case of the present invention, the purpose is achieved by connecting it to the contact 17a of the starter relay 17 as described above. I was able to do that.

Said terminal 43. That is, the contact 12a is connected to the voltage detection circuit 31 via the Zener diode 30. This voltage detection circuit 31 is shown in FIG. 5, and FIG. 6 shows its operating state. This device cuts the voltage by connecting the Zener diode 30 as described above, detects voltage fluctuations above a certain level on the ignition drive line, and outputs it via the inverter when the voltage rises above the rated voltage of the power supply. I try to do that. In the actual circuit, an inverter is further connected to invert the signal and output it to the timer 15 and delay circuit 32. timer 1
Step 5 receives this signal and stops the operation of the start timer 15a. This is to prevent the starter motor from operating excessively.

At the same time, the idling timer 15b is also activated. The delay circuit 32 is connected to the AND gate 22 and also to the accessory terminal 45.

Conventionally, the voltage detection circuit 31 was directly connected to the generator with a cord without using the Zener diode 30 to detect the voltage generated by starting the engine and stop the operation of the starter motor. Focusing on the fact that the voltage on the ignition drive line rises above the rated voltage when the engine starts, the company eliminated the cord wiring and was able to detect it only inside the circuit. Although the variation was slight, the objective could be achieved by simply adding one Zener diode 30 to the conventional circuit as described above. Of course, any circuit may be used as long as it is capable of detecting the voltage fluctuation caused by engine starting. Since this embodiment is a modification of a conventional device, only the Zener diode 30 is inserted.

[Effects of the Invention] As described above, according to the present invention, both the detection of the power supply voltage and the detection of the position of the selector lever are obtained from the terminal provided in the main body and connected to the ignition drive line and starter drive line of the automobile. This eliminates the need for any cord-based wiring as in the past, making installation easier, and we can expect this device to become popular.

Furthermore, even if the engine is left running, the present invention is configured to detect the position of the selector lever and stop the engine when it reaches the position where the car moves, so there is no risk of theft. It also prevents accidents such as the car starting to move on its own even if you carelessly touch the selector lever and move it to the reverse or drive position.

[Brief explanation of drawings]

FIG. 1 is an electrical circuit diagram of the device of the present invention, FIG. 2 is a schematic diagram of a connector for an electrical system of an automobile, and FIG. 3 is a schematic diagram showing how this embodiment is connected to the connector described above. FIG. 4 is an explanatory diagram of the starter drive line, FIG. 5 is a circuit diagram of the voltage detection circuit, and FIG. 6 is an explanatory diagram of the operation of the voltage detection circuit. 10: Starting circuit, 12: Ignition relay l4: Receiving circuit, 15: Timer, 17: Starter relay, 22
: AND circuit, 25: Selector position detection circuit, 41~
45: Terminal.

Claims (1)

[Claims] An automobile in which at least a power supply line, an ignition drive line, and a starter drive line are connected at one point by a detachable connector, and a key switch and a transmission switch are connected in series to the starter drive line. The ignition device is used for the ignition device, which has a coupler provided with a terminal that is inserted between the socket and the plug of the connector and is connected to each line, and which operates for a certain period of time upon receiving a signal from the transmitter. It has a relay and a starter relay that operates intermittently several times upon reception of the above signal, and the operation of the ignition relay and starter relay supplies power to the ignition drive line and starter drive line to operate the vehicle. In the engine starting device, a contact point of the ignition relay connected between a power supply supplied from the power line and an ignition terminal in a terminal of the coupler connected to an ignition drive line; a contact point of the starter relay connected between the power supply and the starter terminal of the coupler connected to the starter drive line, and a voltage connected to the ignition terminal to detect that the ignition drive voltage has risen above the rated voltage. a detection circuit; a recovery circuit that uses the output of the power supply operation detection circuit to reset the starter relay; and a recovery circuit that is connected to the starter terminal, monitors the state of grounding through the transmission switch of the vehicle, and outputs an output when the transmission switch is opened. A remote starting device comprising a reset circuit that resets the ignition relay.