JPH0697025B2 - Remote starter that remotely starts the engine of an automatic vehicle - Google Patents

Description

The present invention relates to a device for remotely starting an engine of a so-called automatic vehicle having an automatic transmission that changes a traveling mode by a selector lever. .

(Prior Art) It is already known to start an engine of an automobile by remote control using radio waves, ultrasonic waves, or the like. This is a device that receives the signal sent from the transmitter by the receiving circuit to operate the ignition circuit of the automobile and the starter motor for a short period of time (Japanese Patent Publication No. 56).
-10464, Jitsuko Sho 60-23511, and Japanese Patent Laid-Open No. 51-45826).

It is possible to start the engine of the automobile by the remote starter having the above structure. However, in the case of remote starting, despite the fact that there are no people in the car, the conventional ones do not consider theft. The timer limits the operating time of the engine to only 10 or 20 minutes, but since it can run a considerable distance during that time, the risk of theft cannot be eliminated.

Therefore, in order to prevent the vehicle from being stolen, there has been proposed an automatic vehicle in which the engine is automatically stopped when the selector lever is removed from the parking position (Japanese Patent Laid-Open No. 63-277858). This eliminated the risk of theft.

Since this remote starter is able to start the engine of an automobile while staying indoors, it is convenient and safe especially in winter, but it is not popular enough. Various investigations were added to the cause.

As described above, this remote starter must detect the position of the selector lever to prevent theft and that the engine has started to stop the operation of the starter motor after starting the engine. Therefore, a detection terminal is provided on a vehicle's mission switch (a switch that operates in conjunction with selector lever operation, which turns on at parking and neutral positions and turns off at other positions) and power supply legulators, and the Must be connected to the device body. Because of these tasks,
Even if I bought a remote starter, it was difficult to install it by myself, and I had to ask an expert to do the wiring work. It seems that this is the biggest cause of the spread.

(Problems to be Solved by the Invention) The present invention has been made in consideration of the above points, does not require special wiring work, can prevent theft, and is easily installed in an automobile. It is an object of the present invention to provide a remote starter capable of performing.

[Means for Solving the Problems] (Means for Solving the Problems) The present invention is 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 is provided. It is limited so that it can be used only in the case where the mission switch is connected in series to the drive line (the line to which the key switch and the relay for operating the starter motor are connected). Almost all modern automatic cars do so, so there is no problem.

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

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

Furthermore, in the present invention, the ignition terminal connected to the ignition drive line in the terminal is connected to the contact of the ignition relay, and the starter terminal connected to the starter drive line is connected to the contact of the starter relay.

Further, the present invention, the ignition terminal is connected to a voltage detection circuit for detecting that the ignition drive voltage has risen above the rating, and, so as to restore the starter relay at its output, while the starter terminal, It is connected to a reset circuit that is grounded through a vehicle's mission switch and does not output, but outputs the output when the mission switch is opened and restores the ignition relay.

It goes without saying that the above-mentioned relay does not mean only a mechanical relay, but also includes a relay configured to perform the same operation by a semiconductor element.

(Operation) In order to use this, the plug may be removed from the socket of the automobile connector, the coupler of the present device may be inserted therebetween, and the socket and the plug may be connected again. It can be used alone.

When the start signal is received from the transmitter, the ignition relay and starter relay operate to turn on their respective contacts. Therefore, the ignition circuit and the starter motor are operated by applying a 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 it slightly decreases while the starter motor is operating, but when the engine is fully operating, it rises from the rated 12V to about 14V, Voltage rides on the ignition drive line. The voltage detection circuit detects the voltage increase and outputs an output to restore the starter relay. Therefore, the operation of the starter motor stops.

As described above, the present invention is used in a vehicle in which the mission switch and the relay in the vehicle that drives the 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 leg is parked or neutral. Further, if the mission switch is moved from the parking or neutral position, it will be in the open state. Therefore, this starter terminal is at ground potential when the selector lever is in the parking or neutral position, and is otherwise supplied with the power supply voltage. Therefore, as a result, this terminal can detect the position of the selector lever. The engine will stop if the reset circuit is activated by detecting the voltage to that terminal and the ignition relay is restored. Therefore, even if an unmanned vehicle has an engine, if the selector lever is moved to a drive or the like, the engine automatically stops, so that the vehicle equipped with this device is not likely to be stolen.

(Embodiment) As shown in FIG. 2, an automobile using this embodiment has an electric system connected to a removable socket 1 and a plug 2. Most cars these days are like this. This embodiment has a coupler 3 inserted between the socket 1 and the plug 2 as shown in FIG. 3, and a main body 4 incorporating an electric circuit is connected to the coupler 3 by a connector 5.
If there is a sufficient space for accommodating the socket 1 and the plug 2 in the automobile, the main body 4 may be incorporated in the coupler 3 without any problem. In that case, needless to say, the connector 5 is not necessary.

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

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

The timer circuit 15 has two timers, a start timer 15a and an idling timer 15b. The start timer 15a outputs a pulse three times every four seconds when the terminal changes from the logic "H" to "L". The pulse signal is applied to the starter relay 17 via the AND gate 16.

The AND gate 16 is also used for the diesel engine vehicle, and the output of the preheating completion detecting circuit 18 is used as one input. In the case of a gasoline engine vehicle, one input of the AND gate 16 is always connected to be logical "H".

The idling timer 15b has two output terminals T1 and T2. During operation, one terminal T1 is in the logic "L" state, and the other terminal T2 is in the logic "H" state. Each of them has timed up 10 or 20 minutes after the engine is started, and the state is reversed. There is. Since the terminal T2 of logic "H" during operation is connected to one input of the AND gate 11,
When the receiving circuit 14 receives the signal, the output of the Q terminal of the starting circuit 10 is inverted, so that the ignition relay 12 operates.

The reset terminal R of the starting circuit 10 is connected to the output of the OR gate 20. The 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 described above, the output of the inner terminal T1 is logic "L".

The inputs of the OR gate 21 are input from the bonnet switch circuit 23 and the brake switch circuit 24, but these are only optionally attached if necessary and are not used in principle in the case of the device of the present invention. The bonnet switch circuit 23 has a logic "H" when the bonnet is open, the logic "L" when the hood is closed, and the brake switch circuit 24 has a logic "L" when the side brake is pulled up and the brake is released. Are configured to be logic "H". Therefore, when this circuit is used, the output of the OR gate 21 is logical "L" only when the vehicle is parked with the side brakes pulled and the bonnet closed. In other cases, the logic becomes "H" and the starting circuit 10 is reset.

The last input of OR gate 20 is the output of AND gate 22. This AND gate is a logical "H" when the vehicle selector lever is in a position other than parking or neutral. The circuit 25 connected to one input of the AND gate 22, that is, the selector lever position detection circuit will be described below.

The circuit 25 is adapted to input a signal through the change-over switch 26, which is adapted to the change in the voltage state depending on the position of the selector lever depending on the vehicle. However, as described above, in the present invention, which is used only for a specific automobile, the changeover switch is used while being fixed in the illustrated state. However, this embodiment can be used for other automobiles by switching the change-over switch 26 if the wiring work is carried out separately.

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 that the output is logic "L". On the other hand, when a voltage is applied to the terminal 26a of the changeover switch 26, one input 27b of the exclusive OR 27 becomes a logic "H" and its output becomes a logic "H".

The main body 4 of this embodiment has five terminals 41 to 45 connected to the automobile through 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 ground line G of the vehicle and the terminal 42 is connected to the power supply line.
AM, terminal 43 to ignition drive line IG, terminal 44
Is connected to the starter drive line ST, and the terminal 45 is connected to an accessory line ACC for operating accessories inside the vehicle.

Needless to say, the terminals 41 and 42 will not be described.
The terminal 43 is an ignition terminal for applying the power supply voltage supplied from the terminal 42 to the ignition drive line IG via the contact 12a of the ignition relay 12. Terminal 44
Is also a starter terminal for supplying a voltage to the starter drive line ST via the contact 17a of the starter relay 17.

As shown in FIG. 4, the automobile using this embodiment has a key switch 6, a mission 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, the terminal 44 is grounded through the coils of the mission switch 7 and the relay 8. Selector lever (not shown)
Switch into the drive or back and the mission switch 7
Turns off. Therefore, the terminal 27b of the exclusive OR 27 becomes the logic "H", and the output of the AND gate 22 becomes the logic "H". Conventionally, the input of the circuit 25, that is, the terminal 26a of the changeover switch 26 was directly connected to the mission switch 7 of FIG. 4 by a cord, but in the case of the present invention, it is connected to the contact 17a of the starter relay 17 as described above. I was able to achieve the purpose by connecting.

The terminal 43, that is, the contact 12a is a Zener diode 30.
It is connected to the voltage detection circuit 31 via. The voltage detecting circuit 31 is shown in FIG. 5, and its operating state is shown in FIG. In this device, the voltage is cut by connecting the Zener diode 30 as described above, and a voltage fluctuation above a certain level on the ignition drive line is detected and output when the voltage exceeds the rated voltage of the power supply via the inverter. I am trying to do it. In an actual circuit, an inverter is further connected and inverted to output to the timer 15 and the delay circuit 32. The timer 15 receives this signal and stops the operation of the start timer 15a. This is because the starter motor is not operated excessively. At the same time, the idling timer 15b is also operated. The delay circuit 32 is connected to the AND gate 22, and the accessory terminal
Connected to 45.

Conventionally, the voltage detection circuit 31 is directly connected to the generator by a cord without using the Zener diode 30, and the voltage generated by the engine start is detected to stop the operation of the starter motor. In the case of the present invention, as described above, attention is paid to the fact that the voltage of the ignition drive line rises more than the rated voltage when the engine is started, so that the wiring by the code is eliminated and detection can be performed only inside the circuit. Although it is a slight variation, the object could be achieved by adding one Zener diode 30 to the conventional circuit as described above. Of course, the circuit itself may be any circuit as long as it can detect the voltage fluctuation due to the engine start. Since this embodiment is a modification of the conventional device, the Zener diode 30 is included.

[Effects of the Invention] As described above, according to the present invention, both the power supply voltage detection and the selector lever position detection are performed from the terminals connected to the vehicle ignition drive line and starter drive line provided in the main body. Since it is possible to eliminate the wiring using a cord as in the conventional case, the attachment becomes easy, and the spread of this device can be expected.

Further, according to the present invention, even if the engine is left operating, the position of the selector lever is detected and the engine is stopped when the position of the automobile moves, so that there is no risk of theft. In addition, it is possible to prevent an accident in which the car starts to move freely even if the selector lever is touched carelessly to move to the back or drive position.

[Brief description 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 of an electric system of an automobile, and FIG. 3 is a schematic diagram showing a state in which this embodiment is connected to the connector, FIG. 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 operation explanatory diagram of the voltage detection circuit. 10: Starting circuit, 12: Ignition relay, 14: Reception circuit, 15: Timer, 17: Starter relay, 22: AND circuit, 25: Selector position detection circuit, 41 to 45: Terminals.

Claims (1)

[Claims] 1. 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 drive line is linked with a key switch and a selector lever to be turned on / off by the operation. It is used for automobiles that have a mission switch connected in series, and an ignition relay that receives a signal from a transmitter and operates for a certain time, and a starter that operates intermittently several times by receiving the above signal. A remote starter having a relay and supplying electric power to the ignition drive line and the starter drive line by the operation of the ignition relay and the starter relay to start an engine of a vehicle, between the socket and the plug of the connector. Inserted in each line individually With a coupler provided with a terminal to be connected, the contact of the ignition relay connected between the power source supplied from the power supply line and the ignition terminal connected to the ignition drive line in the terminal of the coupler, The contact of the starter relay connected between the power source supplied from the power supply line and the starter terminal of the coupler connected to the starter drive line and the ignition terminal are connected, and the ignition drive voltage is higher than the rated voltage. A voltage detection circuit for detecting that, a return circuit for returning the starter relay by the output of the voltage detection circuit, and grounded through the mission switch connected to the starter terminal and turned on,
A remote starter comprising: a reset circuit that outputs an output when the ground state is released by changing the mission switch to OFF and resets the ignition relay by the output.