JP2883652B2 - Control method of trim device of ship propulsion machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for controlling a trim device used in a marine propulsion device.

(Prior Art) In a small boat such as a motorboat, a tilting cylinder unit for raising and lowering a boat propulsion unit above and below the water surface, and a ship propulsion unit which usually rises as the speed of the boat increases. Is used for trim to change the angle of the marine propulsion device underwater, because the screw is inclined diagonally downward and the thrust of the screw is directed upward and the efficiency is reduced to increase the speed. It has a tilt / trim device consisting of a cylinder unit.

As such a trim device, for example, an angle sensor for a drive unit that detects the angle of a marine propulsion device, an angle sensor for a hull that detects that the hull has risen significantly forward, and that detects that it has reached the maximum trim down position. A trim gauge is provided, and the tilt / trim device is normally operated so that the drive unit maintains the specified angle with respect to the water surface based on the detection result of the drive unit angle sensor. Priority is given to the detection result of the drive unit angle sensor based on the detection result of the drive unit, and the trim down operation is performed to prevent the front view from becoming worse or difficult to plan, and based on the detection result of the trim gauge. When the maximum trim down position is reached, stop operation of the It is to control so as to prevent the power consumption.

(Problems to be Solved by the Invention) However, if a plurality of angle sensors are provided and the trim device is controlled based on the detection results of these angle sensors as in the control method of the trim device described above, the cost increases.

(Means for Solving the Problems) In order to solve the above-mentioned problems, claim 1 of the present invention relates to a method for moving the accelerator lever to a higher rotation side than a position where the engine speed is sufficient for the hull to plan. Continue to operate the trim device in the direction in which the hull trims down until a predetermined time elapses, and after the predetermined time elapses, operate the trim device in the direction in which the hull trims up until the predetermined time elapses. Subsequently, when the predetermined time has elapsed, the operation of the trimming device is stopped.

According to a second aspect of the present invention, the accelerator lever is moved to a speed increasing side beyond a predetermined position, and the trim device is continuously operated in a direction in which the hull trims down until a predetermined period of time elapses, or during a certain period. After the time has elapsed, the trim device is continuously operated in the direction in which the hull is trimmed up until the predetermined time elapses, and the accelerator lever is decelerated from the predetermined position to the deceleration side until the predetermined time elapses. When it is moved to, the operation of the trimming device is stopped.

(Action) In claim 1, the hull is trimmed down to be in the planing state by moving the accelerator lever to a higher rotation side than a position where the hull has an engine speed sufficient for planing. However, trim control can be performed such that the portion of the marine propulsion device immersed in water is reduced, and the resistance of the marine propulsion device is reduced, so that it is not necessary to use an expensive angle sensor and the cost is reduced.

In claim 2, when the accelerator lever is moved to the deceleration side from the predetermined position during the trim control, the operation of the trim device is stopped, so that the swing of the boat propulsion device can be stopped at a desired time. Trim control can be performed, and it is not necessary to use an expensive angle sensor, and the cost is reduced.

(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a boat provided with a trim device of a marine propulsion device to which the present invention is applied, FIG. 2 is a configuration diagram of an accelerator position detection unit of the device, and FIGS. 3 (A) and (B) are the same. 4 is a circuit diagram of a sequence circuit and a motor rotation direction switching circuit of the apparatus, and FIG.
The figure is an operation flow diagram of the circuit, FIGS. 5A and 5B are other circuit diagrams of the sequence circuit and the motor rotation direction switching circuit of the device, and FIG. 6 is an operation flow diagram of the circuit.

In FIG. 1, a marine vessel propulsion device 2 is swingably supported on the stern of a hull 1 via a bracket 3, and a pair of brackets 3 are provided in the width direction of the hull 1.
A tilt / trim device 4 for oscillating the marine propulsion device 2 is provided between 3, 3 (the back is omitted).

An accelerator lever 5 for remote control is swingably disposed near the driver's seat of the hull 1, a shutter 6 is attached to the accelerator lever 5 as shown in FIG. The shutter 6 shields the photoelectric tube sensor 7 from light when it is moved forward beyond a position where the engine speed is sufficient for planing.

In FIG. 3 (A), the automatic trim control sequence circuit of the tilt / trim device 4 includes a switch between the + terminal and one terminal of the power supply, which is turned on when the photoelectric tube sensor 7 is shielded from light by the shutter 6. SW1 and relay R1
Series circuit (which is a coil), self-holding contact of relay R2
A series circuit consisting of r21 and contact t21 of timer T2 and contact of relay R1
r11 parallel circuit and series circuit of relay R2, contact r of relay R2
Series circuit of 22 and timer T1, and contact t11 of timer T1
And a series circuit of the timer T2.

In FIG. 3 (B), the motor rotation direction switching circuit includes a series circuit of a contact t12 and a contact t13 of the timer T1 from the battery 11, a parallel circuit of a contact r12 of the relay R1 and a contact t24 of the timer T2, and a manual switch. Power is supplied to the coil 13 of the relay 12 via the contact c and 18 of the relay 18 and a series circuit of the contact t22 and the contact t23 of the timer T2, a parallel circuit of the contact r12 of the relay R1 and the contact t24 of the timer T2, and a manual switch. Power is supplied to the coil 16 of the relay 15 through the contacts c and 18 of the relay 18, and the switching contact 14 of the relay 12 and the switching contact 17 of the relay 15 are interposed in the power supply path between the battery 11 and the motor 19. .

The operation of the sequence circuit and the motor rotation direction switching circuit configured as described above will be described with reference to the flowchart of FIG.

First, when the accelerator lever 5 is moved forward beyond a position where the engine speed is sufficient for the hull 1 to plan, the photoelectric tube sensor 7 is shielded from light by the shutter 6 and the switch SW1 is turned on. Power is supplied to the relay R1 and the contact r11 is turned on, the power is supplied to the relay R2 and the contacts r21 and r22 are turned on, the relay R2 is self-held, and the timer T1 is operated to activate the motor rotation direction switching circuit. Contact t12 of the timer T1 and the contact t12 of the timer T1 from the battery 11
Is supplied to the coil 13 of the relay 12, the switching contact 14 of the relay 12 is switched to the contact a side, and the switching contact ac of the relay 12, the motor 19, and the switching contact cb of the relay 15 are switched. When energized, the motor 19 rotates in the reverse direction, and the tilt / trim device 4 operates in a direction to trim down the hull 1. As a result, the angle of the boat propulsion device 2 gradually increases in the direction in which the hull 1 is trimmed down.

The hull 1 whose timer T1 is a predetermined time Ta
When the time elapses after the time until completely planarizes, the contact t13 of the timer T1 is turned off, the power supply to the coil 13 of the relay 12 is stopped, and the switching contact 14 Switching to the side b, the motor 19 stops, and the swing of the boat propulsion device 2 stops. Further, since the contact t11 of the sequence circuit is turned on and the timer T2 is operated and the contact t22 of the motor rotation direction switching circuit is turned on, the contact t22 and the contact t22 of the timer T2 are transferred from the battery 11.
Power is supplied to the coil 16 of the relay 15 through the
The switching contact 17 is switched to the contact a side, and the power is supplied through the switching contact ac of the relay 15, the motor 19, and the switching contact cb of the relay 12, so that the motor 19 rotates forward and tilt / trim. The device 4 operates in a direction for trimming up the hull 1.
Thus, the angle of the marine vessel propulsion device 2 gradually increases in the direction in which the hull 1 is trimmed up.

The screw provided on the lower part of the marine propulsion device 2 because the timer T2 is trimmed up for a predetermined time Tb
When 2a (see FIG. 1 (C)) elapses by the time until the cavitation does not occur, the contact t23 of the timer T2 is turned off, and the power supply to the coil 16 of the relay 15 is stopped. Then, the switching contact 17 is switched to the contact b side, the motor 19 is stopped, the swing of the boat propulsion machine 2 is stopped, and the contact t21 of the sequence circuit is turned off.

When the manual switch 18 is switched to the contact a after the trim-up operation, the tilt / trim device 4 operates in the direction in which the hull 1 is trimmed up, and when the manual switch 18 is switched to the contact b, the hull 1 is trimmed down. Work in the direction.

By performing such trim control, when the accelerator lever 5 is moved to the forward side from the stopped state shown in FIG. 1 (A) and accelerated as shown in FIG. 1 (B), the hull 1 attempts to move forward. However, since the tilt / trim device 4 operates in the direction of trimming down the hull 1, the marine propulsion device 2 swings as shown by the arrow in the figure, and the hull 1 descends as shown by the arrow in the figure and rises forward. Is reduced and the front visibility is improved, and the planing is not easy. And
After the trim down is completed, the ship is in the planing state. Therefore, by operating the tilt / trim device 4 in the direction in which the hull 1 is trimmed up, the ship propulsion device 2 is moved by the arrow shown in FIG. The hull 1 is lifted up as shown by the arrow in the figure, so that the resistance of the marine vessel propulsion 2 to the marine vessel propulsion 2 is reduced.

In another embodiment shown in FIG. 5 and FIG. 6, the sequence circuit is turned on by a switch SW1 which is turned on when the photoelectric tube sensor 7 is shielded from light by the shutter 6.
A series circuit of relay R1, relay R1 contact r11 and timer T1,
When the accelerator lever 5 is returned during automatic trim control by supplying power to the series circuit of the contact t11 of the timer T1 and the timer T2, the timer -T1 or the timer 2 is turned off and the automatic trim operation is stopped. ing.
The operation of the motor rotation direction switching circuit according to the other embodiment is the same as that of the above embodiment.

(Effects of the Invention) As described above, according to the control method of the trim device of the marine propulsion device of the first aspect, the accelerator lever is moved to a higher rotation side than a position where the hull is at a sufficient engine speed for planing. The hull can be trimmed down to be in the planing state, and the hull can be trimmed up to reduce the part of the marine propulsion device that is immersed in water, thereby reducing the resistance received by the marine propulsion device.
There is no need to use an expensive angle sensor, and the cost is reduced.

In the method for controlling a trim device of a marine propulsion device according to claim 2, when the accelerator lever is moved to a deceleration side from a predetermined position during the trim control, the operation of the trim device is stopped. Can be stopped, and it is not necessary to use an expensive angle sensor, so that the cost is reduced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a boat provided with a trim device of a marine propulsion device to which the present invention is applied, FIG. 2 is a configuration diagram of an accelerator position detecting unit of the device, and FIGS. FIG. 4 is an operation flow diagram of the circuit, and FIGS. 5 (A) and 5 (B) are other diagrams of the sequence circuit and the motor rotation direction switching circuit of the device. FIG. 6 is a circuit diagram, and FIG. 6 is an operation flowchart of the circuit. In the drawings, 1 is a hull, 2 is a boat propulsion machine, 3 is a bracket, 4 is a tilt / trim device, 5 is an accelerator lever, Ta
Is a fixed time, and Tb is a predetermined time.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B63H 20/00

Claims (2)

(57) [Claims] 1. A trim device for a marine propulsion device, wherein when the accelerator lever is moved to a higher rotation side than a position at which an engine rotation speed is sufficient for the hull to perform planing, the trim device is moved in a direction in which the hull trims down. Continue to operate until a predetermined time elapses, and after the predetermined time elapses, continue to operate the trim device in a direction in which the hull trims up until a predetermined time elapses, and when the predetermined time elapses, A method for controlling a trim device of a marine propulsion machine, wherein the operation of the trim device is stopped. 2. A trim device for a marine propulsion device, wherein an accelerator lever is moved to a speed increasing side beyond a predetermined position, and a predetermined time passes by the trim device in a direction in which the hull trims down. While continuing to operate until
Alternatively, after the predetermined time has elapsed, the trim lever is continuously operated in the direction in which the hull trims up until the predetermined time elapses, and the accelerator lever is set in advance until the predetermined time elapses. A method of controlling a trim device of a marine propulsion device, wherein the operation of the trim device is stopped when the trim device is moved from a set position to a deceleration side.