JPS6269732A - Remote controllr for marine propulsion machine - Google Patents

Abstract

PURPOSE:To lighten the influence of an electromagnetic induction by setting the inter-line distance of lines whose current flow directions are reverse each other, and the inter-line distance of lines whose current flow directions are the same, shorter and longer, respectively, among lines with the harness constitution, which affect the electromagnetic induction with each other. CONSTITUTION:When an overheat detecting circuit 16R detects the overheat of one out of two combustion engines after the on-action of a main switch 46, a current is flowed to an earth wire 10 through the lines 14 and 15 to operate a buzzer 18R. When a detecting circuit 17R detects an oil reduction, the current flows into the earth line 10 through the line 15 to operate the buzzer 18R and a lamp 19R, and an operator can know abnormalities. At this time, the lines are wired so that the current flow of the lines 14 and 15 and that of the earth line 10 can be reverse each other, and the controller is free of the influence of the electromagnetic induction. When the overheat detecting circuit 16R and the oil reduction detecting circuit 17R operate, the oscillator circuit 95 of an engine rotation drop circuit 20R oscillates to conduct a thyrister 97. Then a plug 41 goes out and the combustion engine keep a low speed rotation.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a remote control device for a marine propulsion device that remotely controls a propulsion device mounted on a marine vessel using a control device.

(Prior Art) Some ships are equipped with a propulsion device driven by an internal combustion engine at the rear of the ship's hull, and are remotely controlled by a control device located at the bottom of the ship's hull.

This control device and the propulsion device are connected by a wire harness, and this control device is operated to adjust the engine rotational speed of the internal combustion engine;
(Remote control of the propulsion machine for control and emergency stop 1-1; l+ control is performed.

By the way, the wire harness that connects this control device and
m will also be routed, and the electrical resistance, intactance, and capacitance will increase, and a. The amplitude of the signal wave and the noise will increase. The ratio to the amplitude (the SN ratio becomes smaller).

For this reason, the electric current of meter river lighting lamps, alarm control units, etc. may fluctuate each time the regulator is activated, and because alternating current is used as the power source for tachometers, etc. For example, one piece of the thyristor trigger that generates high pressure in the ignition coil of an internal combustion engine's ignition system may not be manually operated at the proper timing, and +E accurate speed; 1ull IH may be disturbed. .

In addition, in case of an emergency with the internal combustion engine, the kill switch is set to 0,
Tori of Sur Risk, Tori No. 4 is 71. , Gl,
Either stop the rotation of the internal combustion engine by
Due to the IF effect of T-induction, the voltage in the kill switch wire may exceed the q or si risk threshold, causing high voltage and u pressure in the ignition coil.There is a possibility that the internal combustion engine may stop or not. There is.

(Problem to be solved by the invention) For this reason, shielded wires are used for the wires that make up the wire harness to avoid leaking magnetic flux or receiving it from others, and to reduce the rotational speed of the internal combustion engine. +113 (I or emergency stop city) could be considered, but it would be expensive.

This invention was made in view of the above points, and is based on the remote control of the propulsion device. It is an object of the present invention to provide a remote control device for a marine propulsion device that can be operated with a low cost and an inexpensive structure.

(F stage for solving the problem) In order to solve the above problem, the present invention includes a propulsion device that is mounted on a ship for 1 hour, a control device that remotely controls this propulsion device, and a ■Remote unit for ships connected with the device with a wire harness;
The wire harness is configured with an electromagnetic 1. Among the wires that influence each other, the distance between the lines facing the current flow force is short, and the distance between the lines facing the same current flow force is long. .

(January 1, 171) This invention is connected to a propulsion device and a remote control device or a wire harness, and among the wires that influence each other due to electromagnetic induction, which constitute this wire harness, the current The wires are arranged so that the distance between the wires facing the flow JJ is short, and the distance between the wires facing the current flow force is long.

For this reason, the influence of electromagnetic induction is reduced on the line that controls the speed of the internal combustion engine of the propulsion machine and the line that controls the emergency stop. Check the reliability of the equipment.

(Example) Examples of the fruits of this invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is a side view of a small boat to which the present invention is applied.

In the figure, reference numeral 1 denotes a propulsion device. Two propulsion devices 1 are provided on the stern plate of a ship 2, and each propulsion device 1 drives a screw 4 by an internal combustion engine 3. +'+rr of ship 2
On the side, the pilot's seat 5 b1 is sunk, and a little further to the r1 side is a control device 6 for speed control and emergency stop of the internal combustion engine 3 of the propulsion machine 1, as well as shift operation 1 and throttle operation, etc.
Or is provided. This control device 6 and the internal combustion engine 3 of each propulsion machine 1 are wa.

The ear harness 7 is connected to the internal combustion engine 1γ, and the internal combustion engine 3 is operated by remote control using the control device 6.

The wire harness 7 11f1 is constructed as shown in FIGS. 2 and 3. A connector 8 connected to the internal combustion engine 3 side is provided at one end of the wire harness 7, and a connector 9 connected to the control device 6 side is provided at the other end.

This wire harness 7 is as shown in Fig. 31 and Fig. 4. For phase 1, shorten the line-to-line distance L1 of the wires that have the opposite current flow direction among the wires that interact with each other, and increase the line-to-line distance L2 for the current flow direction or the circulating wire. It is arranged so that

For example, the ground wire 10, the electric D9 wire 11, the coil output line 12 connected to the charging coil of the Macneto, and the kill switch connected to the Kill Inch X! Relatively many ' such as 1113'
1. Lines 14 to 16 are formed to have a large diameter and are used to control various alarms, lines 17 and 18 that control the up and down of the power tilt device, and
- Performs one control of the switch circuit! 19 are formed to have a small diameter, and these wires are entirely covered with an insulator 20.

The ground wire 10 is a conductor with a diameter of about 1.9 mm covered with an insulator such as rubber and coated with 21K, and the power supply wire 11, coil output wire 12, and kill switch wire 13 are conductors with a diameter of about 1.5 mm and covered with an insulator such as rubber. It is formed by covering the body. Also,
The lines 14 to 19 that control Meishin have a diameter of, for example, 1.
It is formed by similarly covering a conductor of about 0 mm with an insulator such as rubber.

By making the ground wire 10, power supply wire 11, coil output wire 12, and kill switch wire 13 large in diameter, resistance and self-inductance are reduced.

And Earth II! Power line centered around 10! ! , coil output, v1112, kill switch wire 13, wires 14 to 19 for controlling three persimmons, and the ground wire 10 are lined up with 2 tons of rubber coating and arranged so as to have a circumference Ql.

Next, the function of this wire harness 7 will be explained based on FIG. 4. A ground wire 10 placed at the center of the wire harness 7, a power line 11, a coil output line 12, a kill switch line 13, and a line 1 for various controls placed around the ground wire 10.
4 to 19, the current flow is opposite.

The power supply line 11 and the coil output line 12 may have a constant current flowing through them, or the current flowing through the power supply line 11 such as a meter illumination lamp or an alarm control unit may fluctuate each time the regulator operates, or the coil output line 12
An alternating current as a ft igf current flows through a tachometer, etc., and current flows through the surrounding kill switch wire 13 and various control lines when the control is in operation.

When the kill switch is set to 0 in the event of an internal combustion engine emergency, the kill switch line I3 becomes ground potential, which triggers the thyristor's trigger '1' which causes the ignition device to emit a voltage of 1:1.
The rotation of the internal combustion engine is stopped after the start.

At this time, the kill switch wire 13 is close to the ground wire 1O and is far away from the source wire 11 and the coil output wire 12;
Since it is placed in the terminal 5, 1) '1u magnetic + iA due to the current change in '■' of the 71 electric wire 11 and the coil output line 12.
It is less likely that you will be affected by the impact of the conductor. As a result, the potential of the kill switch 4413 or the trigger of Cyrisk)
This prevents the thyristor from malfunctioning and generating high voltage in the ignition coil.

FIG. 5 shows a remote control device I using this wire harness 7.
A specific circuit diagram of VT is shown.

The figure is a detailed circuit diagram of a remote control device provided in the internal combustion engine 3 of the propulsion device 1 on the right side of the ship. Note that the remote control device provided in the internal combustion engine 3 of the propulsion device 1 on the left side is the same as that on the U side, so a description thereof will be omitted.

In the figure, 31 is a magneto, which has charging coils 32 and 33 and a balsa coil 34. Charge'1"L coil 3
The AC output of No. 2 is a known capacitor discharge type ignition circuit 35.
The rectified IL current wave is rectified by a diode 36, and a capacitor 37 is charged with the rectified IL current wave.

On the other hand, the output of the balsa coil 34 is rectified by a diode 38 and is input to the gate of a thyristor 39. When the thyristor 39 is ignited, the electric charge stored in the capacitor 37 is simultaneously discharged through the primary side of the ignition coil 40, and a spark is generated in the ignition plug 41.

A kill switch 42 is connected between the balsa coil 34 and the diode 38 described in 111f via the kill switch line 13. If this kill switch 42 is closed at all times, the ignition 1 ■ 11 road 35 thyristor 39 will not be supplied to the thyristor 39, and the operation will stop.
do.

The AC output generated by the above-mentioned electric coil 33 is 11f.
1. At the rectifier 43 via the coil output line 12? After being drained, the regulator 44 is charged 1' and the system is connected to 7. A storage battery 45 is connected to the regulator 44 via the power line 11, and the main switch 46 is turned on, as will be described below. Electrical circuit operation (In addition to M, it is also used as a source for other 7if electric circuits.

The ramp 47 is connected in the inner row to the oil reduction detection circuit 17R via a tie switch 48, and this 11° first row circuit is connected in parallel to the storage battery 45 via a main switch 46.

The oil reduction detection circuit 17R is charged by connecting a contact 50 and a resistor 51 connected between the gate and cathode of the thyristor 49 and the cathode of the thyristor 49 and 5 connected to the lamp 47 and the tie auto 48 by closing the contact 50. The capacitor 52 is connected.

In the oil decrease detection circuit 17R, when the liquid level falls below the degree limit, the capacitor 52 is charged by the contact 50 or the closed circuit 1, and the thyristor 49 is ignited to keep the lamp 47 lit. This state is maintained until the main switch 46 is opened.

The buzzer 53 is connected to the overheat detection circuit 16 via a diode 54.
R is connected in series, and this series circuit is connected to the main switch 4.
It is connected in parallel to the storage battery 45 via 6. The overheat detection circuit 16R closes the temperature-sensitive contact 55 when the cooling water of the internal combustion engine 3 reaches a predetermined uA degree or higher, and the buzzer 53
sounds to warn you.

This overheating detection circuit 16R and the oil reduction detection circuit 17R described in 111 are connected via a diode 56, and the overheating detection circuit 16R! When the F8 hot junction 55 is closed, the buzzer 53 sounds and the lamp 47 does not light up. On the other hand, when the contact 50 of the oil reduction detection circuit 17R is closed, the lamp 47 lights up and the buzzer 53 sounds.

This overheat detection circuit 16R or oil decrease detection circuit 17
R is connected to the warning output circuit 21R via the 1111 line 14.15.

The t11 control toranosystor 57 of the 11-51 output circuit 21R is connected to a constant voltage circuit consisting of a resistor 58, a constant current auto 59, and a filter capacitor 60 on its eminter side, and this constant '1゛u pressure circuit is The storage voltage 4 is connected via a resistor 61, a tie auto 62gt, and a main switch 46.
5 in parallel.

And ;t+ emitter of control transistor 57 and ＼
A resistor 63 is connected between the resistor 63 and the resistor 63, and is biased through the resistor 63 by the 'l'fj+ voltage from the constant voltage circuit.

The base of the control transistor 57 is connected via a resistor 64 to a constant voltage tie 65, a resistor 66, and a voltage holding capacitor 67.
This constant voltage circuit is connected to a constant voltage circuit with a resistor of 6
8. It is connected in parallel to the overheat detection circuit 16R and the oil reduction detection circuit 17R via a diode 69.

;-through the resistor 64 to the base of the control transistor 57-
The Zener voltage of the constant voltage tie auto 65 connected to the C, ID column is set to be equal to or higher than the Zener voltage of the constant voltage diode 59 connected in parallel to the 5 emitter. When the overheat detection circuit 16R, oil decrease detection circuit 17R, or holding circuit 23R does not operate,
The base voltage is maintained at the same level or higher than the collector voltage, and the control transistor 57 is rendered non-conductive.

On the other hand, when the overheat detection circuit 16R, oil decrease detection circuit 17R, or holding circuit 23R operates, the control transistor 5
7 is lowered to the ground voltage, and the tl control transistor 57 becomes conductive.

A photocoupler 71 is provided on the collector side of the control transistor 57.
The light emitting diode 72 of a is grounded through a resistor 73. The phototransistor 74 becomes conductive due to the light emitted from the light emitting diode 72, and the control f stage 1 of the left internal combustion engine 3 is activated.
1L's similarly configured warning circuit is activated.

The warning signal input circuit 22R of the internal combustion engine 3 on the right is connected to the phototransistor 75 of the photocoupler 71b by the output of the <III Jlf signal output circuit of the left internal combustion engine 3. .

Warning A, ; input circuit 22R is resistor 76, capacitor 7
7. It is composed of an inverter 78, a capacitor 79, a resistor 80, and an inverter 81, and after shaping the
It is supplied to the holding circuit 23R.

The inverter 78 is provided with a pull-up resistor 82, which has a source voltage Vcc.

The holding circuit 23R is composed of a flip-flop circuit consisting of NAND circuits 83 and 84, and the warning A and ; input circuits 22R are connected to the 8-power output of the NAND circuit 83.
A predetermined voltage vCCh)' is applied to the NAND circuit 84 via resistors 85, 86 and a capacitor 87, and its output is applied via a resistor 88 to the Ruri control transistor 8.
Connected to the base of 9. The NAND circuits 83 and 85 of the holding circuit 23R are automatically set to '1' when the source Vcc is applied, and do not output. Then, when the phototransistor 75 becomes conductive and the output of the NAND circuit 83 becomes low level, it is reset and the output state is maintained.

In this flip-flop circuit, a contact 70 of the neutral detection circuit 24R is connected to a diode 90 via the line 16, and when the contact 70 is closed, a NAND circuit 84 is connected.
's S-man power to low level. In the reset state, when the S power of the NAND circuit 84 becomes low level due to the operation of the neutral circuit 24R, it enters the set state and does not output.

The collector side of the control transistor 89 is connected to the engine rotation low F circuit 20R, and the Irf diode 54
The emitter side is connected to the buzzer 53 via the emitter side, and the emitter side is grounded. Therefore, if the base of the control transistor 89 becomes conductive due to a warning signal (No. 3), the engine rotation low voltage circuit 20R will be activated and the buzzer 53 will sound abnormal.
Use the usual warnings.

The engine rotation low F circuit 20R uses a waveform shaping circuit 91 to convert the output of the pulser coil 34 into a rectangular wave pulse, and converts the output frequency of this pulse into an F/V conversion circuit 92 to indicate the rotation speed.
Convert to heavy pressure.

The input side of the delay circuit 93 is connected via a diode 94 to the holding circuit 23R, the overheat detection circuit 16R, and the oil reduction detection circuit 17R. This d-voltage circuit 93 is connected to the output voltage of the internal combustion engine 3 or 1 [during normal operation, a predetermined integral voltage 11].
- If you yell, due to overheating or decrease in oars,
The output voltage of any one of the output signals 111 of the holding circuit 23R1, the overheat detection circuit 16R, and the oil reduction detection circuit 17R is configured to be temporarily lowered.

Then, the output of the H detour 93 is manually input to the oscillation circuit 95, and the oscillation circuit 95 oscillates when the output (rj) of the holding circuit 23R1, overheat detection circuit 16R, or oil reduction detection circuit 17R is input manually. The output type J of the H detour path 93 and the output type 11 of the F/V circuit 92 are grounded to generate an oscillation output that changes the tute ratio, and the gate circuit 96 is Power is supplied to the thyristor 97 via the thyristor 97.

The gate circuit 96 generates the gate 110 at a predetermined time when the output of the oscillation circuit 95 becomes high level. Therefore, during this predetermined time, the capacitor 37 is attacked by the R wave of +E of the charging coil 32 or through the thyristor 97.
The current will stop and no spark will be generated in the spark plug 41.

The detailed structure and operation of this engine rotation low speed circuit 20R are shown in the specification of Japanese Patent Application No. 193193-1988, previously filed by the same applicant.

A meter illumination lamp 98 and an alarm control unit 99 are connected to the regulator 44 via the main switch 46, and a source negative load current is supplied to these via the power line 11 every time the regulator 44 operates. fluctuate.

In addition, a tachometer 100 is attached to the +IRF charging coil 33.
or connected via the coil output line 12, the tachometer! 0
0 is driven by alternating current 'I'.

Note that the ground side of this control circuit is connected to the ground wire 10. In addition, in the up/down control circuit of the power tilt device that tilts the propulsion device 1 provided outside this control circuit, the line 17 for up operation and the line 18 for down operation in 11a, or the surface wiring 19 in the choke switch circuit. is used.

Next, the operation of this embodiment will be explained.

When the '■π source voltage Vcc is applied, the holding circuit 23R is automatically turned on and does not output;
The run transistor 89 is in a non-conductive state, and the holding circuit 23R
does not operate, the engine rotation low/lower circuit 20R is in normal operating condition.

In other words, if the internal combustion engine 3 does not overheat while the main switch 46 is on, and the oil is limited and the engine is safe, the oscillation circuit 95 of the engine rotation low circuit 20R will not be excavated. , the thyristor 97 is in the Jl conduction state. For this reason, the ignition circuit 35 is always in operation and a spark is generated in the spark plaque 41), and the internal combustion engine 3 continues to rotate at all times.

By the way, after the main switch 46 is turned on, if overheating of the stone-side internal combustion engine 3 is detected by the overheat detection circuit 16R, a current flows to the ground wire 10 via the wires 14 and 15, and the buzzer 18R is activated. For example, if the oil decrease is detected by the oil decrease detection circuit 17R, the line 1
A current flows through the ground wire 10 through the ground wire 10, which activates the buzzer 18R and the lamp 19R, thereby notifying the driver of the abnormality. At this time, the current flows in the wires 14 and 15 and the ground wire 10 are arranged in opposite directions as shown in FIGS. It is made sure that there is no such thing.

When either the overheat detection circuit 16R or the oil decrease detection circuit 17R is activated, the salt oscillation circuit 95 of the engine rotation low level circuit 20R starts to oscillate, and the oscillation output is controlled by the thyristor 97 or 4 via the gate circuit 96. As a result, the ignition plaque 41 misfires and the internal combustion engine 3 continues to rotate at a low speed.

Along with the stiffness, the control transistor 57 of the τ output circuit 21R becomes conductive, operating the photocoupler 71a, and the warning 4.1 is activated.

Human power is applied to the signal human power circuit.

As a result, the holding circuit of the left internal combustion engine 3 is held in the reset state, and this holding state is continued to drive the engine co-rotation low drive circuit to 1) lower the normal rotational speed of the internal combustion engine 3;

Also, at this time, a buzzer is activated at the same time to alert the driver; 1. do.

And, for example, overheating or low speed rotation or cold 741
The ice is injected and thawed at 111, and also during low speed rotation.

Inject orl into the tank and make it a normal oil instep, left I
If the contacts 55 and 50 of the overheat detection circuit 16R and the oil reduction detection circuit 17R are opened under the condition that the neutral detection circuit of I' is not operating, the buzzer 18R and the lamp 19 will be activated.
Activate or stop the R and engine synchronized low-lower circuit 20R.

At the same time, the control transistor 57 of the ζ output circuit 21R becomes non-conductive, and the left warning (A, τ person)
Warning (+i s, or no input, or the flip-flop circuit of the holding circuit continues to maintain the set state), the holding state of the holding circuit of the internal combustion engine 3 on the side is I'i (1 !If main switch 4 of internal combustion engine 3
Similarly, it will not be canceled if the number falls below 6.

), to release the normal low-speed rotation of the internal combustion engine 3 on the side, set the shift key 1 of the left propulsion unit 1 to neutral, the neutral detection circuit will be activated, and the holding circuit will be in the set state. Retained or released.

Therefore, the engine rotation on the left side I is stopped (operating or stopped), and the internal combustion engine on the left side returns to its normal operating state.

The cancellation of the low speed rotation of the internal combustion engine on the Ii side is performed 1γ independently from the cancellation of the internal combustion engine on the Ii side.

For example, if a hole occurs in the internal combustion engine 3, the kill switch 42 is closed. As a result, the kill switch line 13
A current flows through the ground wire 10 and is grounded, becoming the trigger potential wind F of the thyristor 39. For this reason, the ignition circuit 3
The thyristor 39 of No. 5 no longer fires, and the operation of the internal combustion engine 3 is stopped.

At this time, as shown in Fig. 31 and Fig. 4, the kill switch wire 13 is formed to have a large diameter and is placed close to the ground wire 10 through which the current flows in the opposite force direction, and is connected to the power supply wire 11 and the coil output wire. It is located at a distance of 12.

Therefore, the meter river 1 (<1
January lamp 98 and alarm control unit 99
'I' etc. The negative load current fluctuates every time the regulator 44 operates, or the tachometer 100 changes due to the coil output line 12.
The 1F effect of the phase If between the power supply lines 1, 1, the coil output line 12, and the kill switch line 13 due to the alternating current supplied to the coil is reduced.

Therefore, when the kill switch is activated, the kill switch f1!1
3 '1' Electromagnetic by the line 11 and the coil output line 12,
:A4's ;J Sankyo's phenomenon that exceeds the trigger of thyristor 39 occurs on September 1st. Therefore,
When the kill switch is actuated, the thyristor 39 fires and ;z1 voltage is generated in the ignition coil 40, causing the ignition plaque 41
Malfunctions such as sparks or sparks are reduced.

(Effects of the Invention) This invention has the following features: 1) As described in item 11, a wire harness that connects a control device and a propulsion device is configured, and a current flow force is directed toward the wires that mutually exert the influence of electromagnetic induction on the phase IL. Since the distance between the opposite wires is shortened and the distance between the lines facing the current m is increased, the current flow or the shadow of electromagnetic induction from the same wire is reduced. Remote control of the rotational speed of the internal combustion engine and constant stoppage of the internal combustion engine can be performed reliably without any erroneous movements.
A1: Reliability of the device?

4 Explanation of the drawings in nt+ Figure 1 is for the elementary school to which this invention is applied! FIG. 2 is a side view of the wire harness 7 of the remote control device of the present invention, FIG. 3 is a sectional view taken along line mm in FIG. 2, and FIG. 4 is a detailed explanation of the invention. j, FIG. 5 is a circuit diagram of the remote control device of the present invention.

l... Propulsion machine 3... Internal combustion engine 6... Control device 7... Wire harness 10... Earth wire 11... Power line 12... Coil output line 13... Kill switch line 14-19...Line patent applicant] -Shingyo Co., Ltd. Agent Patent Attorney Toshio Nanashima Waka"""";wFigure 4

Claims (1)

[Claims] A remote control device for a marine propulsion device comprising a propulsion device mounted on a ship and a control device for remotely controlling the propulsion device, the propulsion device and the control device being connected by a wire harness,
Among the wires that constitute the wire harness and mutually exert the influence of electromagnetic induction, the distance between the wires in which the current flows in opposite directions is shortened, and the distance between the wires in which the current flows in the same direction is increased. A remote control device for a marine propulsion device, characterized in that: