An integrated hydraulic control system for outboard motor steering, tilting, and motor electronic control and oil cooling

Abstract

The present invention relates to an integrated hydraulic control system for outboard motor steering, tilting, and motor electronic control and oil cooling, comprising a steering wheel, a tilting control button, a controller, and a hydraulic system. The steering wheel's signal output end is connected to a signal receiving end of the controller, the tilting control button's signal output end is connected to a signal receiving end of the controller, and the controller's output end is connected to an input end of the hydraulic system. The hydraulic system outputs oil to a first and second tilting cylinders and / or a steering cylinder through hydraulic control, respectively, for controlling the outboard motor's tilting and steering functions. The hydraulic system includes a tilting hydraulic system for controlling the outboard motor's tilting and a steering hydraulic system for controlling the outboard motor's steering. The tilting hydraulic system is assisted in controlling the steering hydraulic system by a redundant auxiliary steering system. The present invention can reduce operating costs and, through the redundant auxiliary steering system, provides a backup steering function in an emergency, thereby ensuring the safety of the boat.

Description

Technical Field

[0001] The present invention relates to the field of electric outboard motors, and in particular to an outboard motor steering, tilting and motor electronic control and oil cooling integrated hydraulic control system. Background Art

[0002] Currently, integrated hydraulic control systems are being designed for the tilting and steering control of electric outboard motors. This can reduce the weight, volume, and cost of the hydraulic system, making it feasible to deploy the hydraulic system on the outboard motor. Current steering and tilting devices utilize separate motor pumps and electronic oil pumps for oil supply, resulting in high system cost and weight. Steering is a high-level safety feature, especially for steer-by-wire systems like this one. For example, in steering systems controlled by motors, solenoid valves, or electronic oil pumps, if these motors or solenoid valves fail for some reason, the system loses its steering function. This can severely prevent the boat from steering properly, potentially endangering personal safety. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide an outboard motor steering, tilting and motor electronic control and oil cooling integrated hydraulic control system.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An integrated hydraulic control system for steering, tilting, and motor electronic control and oil cooling of an outboard motor comprises a steering wheel, a tilting control button, a controller, and a hydraulic system. The signal output end of the steering wheel is connected to a signal receiving end of the controller, the signal output end of the tilting control button is connected to a signal receiving end of the controller, the output end of the controller is connected to an input end of the hydraulic system, and the hydraulic system outputs oil to a first and second tilting cylinders and / or a steering cylinder through hydraulic control, respectively, for controlling the tilting and steering functions of the outboard motor.

[0006] The hydraulic system includes a tilting hydraulic system for controlling the tilting of the outboard motor and a steering hydraulic system for controlling the steering of the outboard motor, wherein the tilting hydraulic system is assisted in controlling the steering hydraulic system by a redundant auxiliary steering system;

[0007] The hydraulic system for lifting includes

[0008] In the tilting circuit system, the oil in the accumulator is output to the first solenoid valve, which then connects the oil to the bottom oil chambers of the first and second tilting cylinders, pushing the piston rods of the tilting cylinders upward, causing the outboard motor to move upward. At the same time, the second hydraulically controlled one-way valve is closed, maintaining the oil pressure in the bottom oil chambers of the first and second tilting cylinders, allowing the outboard motor to maintain its current tilting position.

[0009] In the descending circuit system, after the first solenoid valve is filled with oil, the first solenoid valve connects the oil to the upper oil chambers of the first and second lifting cylinders. At the same time, the oil in the bottom oil chambers of the first and second lifting cylinders is discharged into the oil pot through the first solenoid valve, pushing the piston rods of the lifting cylinders to move downward, causing the outboard motor to move downward. At the same time, the first hydraulically controlled one-way valve is closed to maintain the oil pressure in the upper oil chamber of the second lifting cylinder, so that the outboard motor maintains its current descending position.

[0010] The steering hydraulic system realizes the left and right linear motion of the piston rod of the steering cylinder.

[0011] The piston rod of the steering cylinder moves linearly to the right. When the steering wheel outputs a signal to the controller, the controller outputs a signal to the second solenoid valve, causing the valve core of the second solenoid valve to move to the left. The oil enters the left chamber of the steering cylinder. At the same time, the oil in the right chamber of the steering cylinder is discharged into the oil tank through the second solenoid valve. The piston rod of the steering cylinder moves linearly to the right. At the same time, the second solenoid valve and the fourth hydraulically controlled one-way valve are closed to maintain the oil pressure in the right oil chamber. The right steering direction of the outboard motor remains unchanged.

[0012] The piston rod of the steering cylinder moves linearly to the left. When the steering wheel outputs a signal to the controller, the controller outputs a signal to the second solenoid valve, causing the valve core of the second solenoid valve to move to the right. The oil enters the right chamber of the steering cylinder. At the same time, the oil in the left chamber of the steering cylinder is discharged into the oil tank through the second solenoid valve. The piston rod of the steering cylinder moves linearly to the left. At the same time, the second solenoid valve and the third hydraulically controlled one-way valve are closed to maintain the oil pressure in the left oil chamber. The left steering direction of the outboard motor remains unchanged.

[0013] Assisted steering system

[0014] The steering cylinder moves right linearly, and the steering wheel outputs a signal to the controller. The controller outputs a signal to the third solenoid valve. After closing the cooling circuit, the oil output by the mechanical pump flows into the left oil chamber of the steering cylinder. The oil in the right oil chamber flows back to the mechanical oil tank through the third solenoid valve, and the piston rod of the steering cylinder moves right. At the same time, after reaching the specified angle, the third solenoid valve is closed, and the oil pressure in the left oil chamber is maintained, so the right steering angle of the outboard motor remains unchanged.

[0015] and / or,

[0016] The steering cylinder moves in a straight line to the left, and the steering wheel outputs a signal to the controller. The controller outputs a signal to the third solenoid valve. After closing the cooling circuit, the oil output by the mechanical pump flows into the right oil chamber of the steering cylinder. The oil in the left oil chamber flows back to the mechanical oil pot through the third solenoid valve. The piston rod of the steering cylinder moves to the left. After reaching the specified angle, the third solenoid valve is closed. The oil in the right oil chamber maintains the oil pressure, and the right steering angle of the outboard motor remains unchanged.

[0017] Preferably, the outboard motor steering tilting and motor electronic control oil cooling integrated hydraulic control system, the auxiliary steering system also includes

[0018] When the switch valve is activated and the cooling circuit is closed, when the fifth hydraulically controlled one-way valve is opened and the third and fourth hydraulically controlled solenoid valves are closed, the accumulator controls the left and right movement of the rotary cylinder through the NW oil circuit.

[0019] Preferably, in the outboard motor steering, tilting and motor electronic oil cooling integrated hydraulic control system, a first overflow valve is connected between the motor pump and the oil tank.

[0020] Preferably, in the outboard motor steering, tilting and motor electronic oil cooling integrated hydraulic control system, the second and third relief valves are connected between the mechanical pump and the mechanical oil tank.

[0021] Preferably, in the outboard motor steering, tilting and motor electronic oil cooling integrated hydraulic control system, a pressure sensor is connected between the accumulator and the first and second solenoid valves.

[0022] Preferably, in the outboard motor steering, tilting and motor electronic oil cooling integrated hydraulic control system, the first, second and third solenoid valves are all three-position four-way solenoid valves.

[0023] Preferably, in the outboard motor steering, tilting and motor electronic oil cooling integrated hydraulic control system, the mechanical pump is connected to the cooling circuit through a switch valve.

[0024] By means of the above solution, the present invention has at least the following advantages:

[0025] The present invention uses a mechanical pump to provide cooling and lubrication for the motor and electronic control. Simultaneously, by storing pressure in an accumulator, the motor can operate intermittently. The outboard motor drive shaft drives a mechanical pump to provide cooling and lubrication for the motor and electronic control, reducing the use of motor pumps, weight, and cost. Furthermore, the present invention utilizes a redundant auxiliary steering system, providing backup steering in emergencies, ensuring safe navigation of the boat.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a hydraulic principle diagram of the hydraulic system of the present invention. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0032] Example

[0033] like Figure 1 and Figure 2 As shown, an integrated hydraulic control system for outboard motor steering, tilting, and motor electronic control and oil cooling includes a steering wheel 100, a tilting control button 130, a controller 110, and a hydraulic system 120. The signal output end of the steering wheel 100 is connected to the signal receiving end of the controller 110, the signal output end of the tilting control button 130 is connected to the signal receiving end of the controller 110, and the output end of the controller 110 is connected to the input end of the hydraulic system 120. The hydraulic system 120 outputs oil to the first and second tilting cylinders 11, 12 and / or the steering cylinder 28 through hydraulic control, respectively, for controlling the tilting and steering functions of the outboard motor;

[0034] The hydraulic system 120 includes a tilting hydraulic system for controlling the tilting of the outboard motor and a steering hydraulic system for controlling the steering of the outboard motor. The tilting hydraulic system is assisted in controlling the steering hydraulic system by a redundant auxiliary steering system.

[0035] The hydraulic system for lifting includes

[0036] In the tilting circuit system, the oil in the accumulator 4 is output to the first solenoid valve 6, which then connects the oil to the bottom oil chambers 14 and 16 of the first and second tilting cylinders 11 and 12, pushing the piston rods of the tilting cylinders upward, causing the outboard motor to move upward. At the same time, the second hydraulically controlled one-way valve 18 is closed, maintaining the oil pressure in the bottom oil chambers of the first and second tilting cylinders 11 and 12, allowing the outboard motor to maintain its current tilting position.

[0037] In the descending circuit system, after the first solenoid valve 6 is filled with oil, the first solenoid valve 6 connects the oil to the upper oil chambers 13 and 15 of the first and second lifting cylinders 11 and 12. At the same time, the oil in the bottom oil chambers of the first and second lifting cylinders 11 and 12 is discharged into the oil pot 31 through the first solenoid valve 6, pushing the piston rods of the lifting cylinders to move downward, causing the outboard motor to move downward. At the same time, the first hydraulically controlled one-way valve 17 is closed to maintain the oil pressure in the upper oil chamber 15 of the second lifting cylinder 12, so that the outboard motor maintains its current descending position.

[0038] The steering hydraulic system realizes the left and right linear motion of the piston rod of the steering cylinder.

[0039] The piston rod of the steering cylinder moves linearly to the right. When the steering wheel 100 outputs a signal to the controller 110, the controller 110 outputs a signal to the second solenoid valve 22, causing the valve core of the second solenoid valve to move to the left. Oil enters the left chamber 30 of the steering cylinder 28. At the same time, the oil in the right chamber 29 of the steering cylinder is discharged into the oil tank 31 through the second solenoid valve. The piston rod of the steering cylinder moves linearly to the right. At the same time, the second solenoid valve and the fourth hydraulically controlled one-way valve 27 are closed, maintaining the oil pressure in the right oil chamber 30. The right steering direction of the outboard motor remains unchanged.

[0040] The piston rod of the steering cylinder moves linearly to the left. When the steering wheel 100 outputs a signal to the controller 110, the controller 110 outputs a signal to the second solenoid valve 22, causing the valve core of the second solenoid valve to move to the right. The oil enters the right chamber 29 of the steering cylinder 28. At the same time, the oil in the left chamber 30 of the steering cylinder is discharged into the oil tank 31 through the second solenoid valve. The piston rod of the steering cylinder moves linearly to the left. At the same time, the second solenoid valve and the third hydraulically controlled one-way valve 26 are closed, maintaining the oil pressure in the left oil chamber 30. The leftward steering of the outboard motor remains unchanged.

[0041] Assisted steering system

[0042] The steering cylinder moves right linearly. The steering wheel 100 outputs a signal to the controller 110. The controller 110 outputs a signal to the third solenoid valve 25. After the cooling circuit 24 is closed, the oil output by the mechanical pump 19 flows into the left oil chamber 30 of the steering cylinder 28. The oil in the right oil chamber 29 flows back into the mechanical oil tank 32 through the third solenoid valve 25. The piston rod of the steering cylinder moves rightward. At the same time, after reaching the specified angle, the third solenoid valve 25 is closed. The oil pressure in the left oil chamber 30 is maintained, and the right steering angle of the outboard motor remains unchanged.

[0043] and / or,

[0044] The steering cylinder moves in a straight line to the left, and the steering wheel 100 outputs a signal to the controller 110. The controller 110 outputs a signal to the third solenoid valve 25. After closing the cooling circuit 24, the oil output by the mechanical pump 19 flows into the right oil chamber 29 of the steering cylinder 28, and the oil in the left oil chamber 30 flows back to the mechanical oil pot through the third solenoid valve 25. The piston rod of the steering cylinder moves to the left. After reaching the specified angle, the third solenoid valve 25 is closed, and the oil in the right oil chamber 29 maintains the oil pressure, and the right steering angle of the outboard motor remains unchanged.

[0045] The auxiliary steering system of the present invention also includes

[0046] When the switch valve 23 is activated and the cooling circuit 24 is closed, the fifth hydraulically controlled one-way valve 3 is opened and the third and fourth hydraulically controlled solenoid valves 26 and 27 are closed, the accumulator controls the left and right movement of the rotary cylinder 28 through the NW oil circuit.

[0047] In the present invention, a first overflow valve 1 is connected between the motor pump 2 and the oil pot.

[0048] In the present invention, the second and third overflow valves 20 and 21 are connected between the mechanical pump and the mechanical oil pot.

[0049] In the present invention, a pressure sensor 5 is connected between the accumulator 4 and the first and second solenoid valves 6 and 24 .

[0050] In the present invention, the first, second and third solenoid valves 6, 24 and 25 are all three-position four-way solenoid valves.

[0051] The mechanical pump 19 in the present invention is connected to the cooling circuit 24 through the switch valve 23.

[0052] In the present invention, the upper cavity of the first lifting cylinder is connected to the oil pot through the first throttle port 7 and the third one-way valve 8 as well as the second throttle port 9 and the fourth one-way valve 10.

[0053] The working principle of the present invention is as follows:

[0054] The integrated hydraulic control system of the present invention is used to control the lifting and steering of an electric-driven outboard motor device and the oil cooling and lubrication of the electric motor electronic control.

[0055] A motor-driven oil pump provides hydraulic power to the lift and steering cylinders. The motor pump supplies oil to an accumulator, which is controlled by two 3-position, 4-way solenoid valves, respectively, with the steering function taking priority. When the accumulator pressure falls below a set value, the motor pump begins operating until the pressure reaches the set upper limit, at which point it stops. This allows for intermittent operation of the motor pump.

[0056] Activate the first and second electromagnetic valves 6, 22 to control the tilting oil cylinder and the steering oil cylinder respectively. When the specified tilting position or steering position is reached, the electromagnetic valve is powered off and the oil pressure in the oil cylinder is maintained by the one-way valve.

[0057] In the present invention, the mechanical pump provides oil for cooling and lubricating the motor, electronic control, gear shaft, bearings and other parts in the outboard motor drive system. Regardless of whether the mechanical pump rotates forward or reverse, the oil circuit can provide oil through the switch valve 23 to the outboard motor system device for cooling and lubrication. When an unexpected failure occurs in the motor pump 2 or the third solenoid valve 22, causing the steering function to fail, the switch valve 23 is closed at this time, temporarily cutting off the cooling and lubricating oil circuit, and giving priority to supplying it to the steering cylinder. After the outboard motor reaches the specified steering angle, the switch valve 23 is opened to continue cooling and lubricating the motor electronic control and other devices. The oil returns to the oil shell at the bottom of the outboard motor, dissipates heat through the outboard motor bottom shell, and reduces the oil temperature.

[0058] The lifting and steering functions of the outboard motor driven power unit are realized by the first and second lifting cylinders 12, 13 and the steering cylinder 28 respectively.

[0059] When the driver turns the steering wheel 100 or presses the tilt control button 130, the sensor in the steering wheel system or the tilt control button outputs a signal to the controller 110. The controller 110, based on a pre-set control program, then outputs an electrical signal to the hydraulic system 120. The hydraulic system 120, through hydraulic control, delivers oil to the designated first and second tilt cylinders 11 and 12, or the steering cylinder 28, respectively, to control the outboard motor's tilt and steering functions.

[0060] The working principle of the hydraulic system 120 is shown in FIG. Figure 2 Hydraulic schematic diagram.

[0061] The hydraulic system includes a motor pump 2 and a mechanical oil pump 19 for respectively providing oil to the first and second lifting cylinders 11, 12 and the steering cylinder 28 and the outboard motor device for cooling.

[0062] The motor pump 2 comprises a brushed or brushless motor driving an oil pump. This can be any type of external or internal gear pump, a plunger pump, or other oil pump. The specific structure is not described in detail here. Driven by the outboard motor's drive shaft in both forward and reverse directions, the mechanical pump delivers oil for cooling the drive unit.

[0063] When the tilt control button 130 is input to the controller 110, the controller sends an electrical signal to the motor pump 2, driving the motor pump to output oil to the oil circuit. The accumulator builds up pressure until the oil pressure reaches the set value, at which point the motor pump stops. When the accumulator pressure falls below the set value, the motor pump 2 starts operating.

[0064] First solenoid valve 6 controls the tilting function of the tilting cylinders. When the first solenoid valve spool moves to the right functional area, oil enters the bottom oil chambers 14 and 16 of the first and second tilting cylinders 11 and 12, pushing the piston rods upward. Simultaneously, the oil in the upper oil chambers 13 and 15 of the first and second tilting cylinders 11 and 12 is discharged into the oil tank, thus realizing the tilting function of the outboard motor.

[0065] When the designated position is reached, the first solenoid valve 6 is powered off and the second hydraulically controlled one-way valve 18 is closed, thereby maintaining the oil pressure in the bottom oil chambers of the first and second lifting cylinders 11 and 12 .

[0066] Similarly, when the valve core of the first solenoid valve 6 moves to the functional area on the right side of the figure, the oil enters the upper oil chamber 15 of the second cylinder 12, and at the same time, the oil in the bottom oil chambers of the first and second lifting cylinders 11 and 12 are discharged into the oil pot through the first solenoid valve 6. In this way, the cylinder piston rod moves downward as shown in the figure, driving the outboard motor to move downward.

[0067] When the outboard motor reaches the designated position, the first solenoid valve 6 is de-energized, the first hydraulically controlled one-way valve 17 is closed, and the oil pressure in the upper oil chamber 15 of the second lifting cylinder 12 is maintained therein to maintain the position of the outboard motor.

[0068] When steering wheel 100 is turned, a signal is sent to controller 110, which in turn outputs a current signal to second solenoid valve 22. When the second solenoid valve spool moves to the functional area on the left side of the diagram, oil enters the left oil chamber 30 of steering cylinder 28. Simultaneously, oil in the right oil chamber 29 is discharged to the oil reservoir via second solenoid valve 34. This causes the piston rod of steering cylinder 28 to move rightward, steering the outboard motor to one side.

[0069] When the outboard motor rotates to a specified angle, the second solenoid valve 34 is closed. The oil in the left oil chamber 30 can be retained in the oil chamber due to the closure of the second hydraulically controlled one-way valve 27, thereby maintaining the steering angle of the outboard motor.

[0070] Alternatively, the valve core of the second solenoid valve 22 is controlled to move to the right functional area shown in the figure. Oil then flows through the solenoid valve into the right oil chamber 29 of the steering cylinder 28. Simultaneously, oil in the left oil chamber 30 is discharged into the oil reservoir through the second solenoid valve 22. This pushes the piston rod to move linearly to the left in the figure, driving the outboard motor to rotate in the opposite direction.

[0071] When the outboard motor rotates to a specified angle, the second solenoid valve 22 is closed. The oil in the steering oil chamber 28 is kept in the oil chamber due to the closure of the first hydraulically controlled one-way valve 26, thereby maintaining the steering angle of the outboard motor.

[0072] The outboard motor's drive shaft rotates mechanical pump 19. Regardless of forward or reverse rotation, the pump delivers oil through a check valve and an on-off valve to the cooling oil circuit 24, providing cooling and lubrication for the outboard motor, electronic control, and gear transmission. The oil then flows back into the outboard motor's heat sink housing, where it cools and is then re-drawn by mechanical pump 19 and re-circulated to the cooling circuit 24, fulfilling its cooling and lubrication functions.

[0073] If the 3 / 4-way solenoid valve 34 or the motor pump 2 fails for some reason, no oil can be supplied to the steering cylinder 28. The controller 110 activates the backup steering function according to a pre-set program. The controller sends a specified electrical signal to the third solenoid valve 25, activating it and causing the valve core to move, connecting oil passage NL or NR.

[0074] When controller 110 sends an electrical signal to third solenoid valve 25, causing the valve core to move to the functional area on the left side of the diagram, it simultaneously activates on-off valve 23, closing the oil flow to cooling circuit 24. This allows the oil output by mechanical pump 19 to flow into the left oil chamber 30 of steering cylinder 28. The oil in the right oil chamber 29 flows back to the oil tank through third solenoid valve 25, causing the piston rod to move linearly to the right as shown, steering the outboard motor to one side. Upon reaching the specified angle, third solenoid valve 25 closes, maintaining the oil pressure in the left oil chamber 30 and the steering angle. Simultaneously, on-off valve 23 is de-energized, allowing the oil output by mechanical pump 19 to continue flowing to cooling circuit 24.

[0075] When controller 110 sends an electrical signal to third solenoid valve 25, causing the valve core to move to the functional area on the right side of the diagram, it simultaneously activates on-off valve 23, closing the oil flow to cooling circuit 24. This allows the oil output by mechanical pump 19 to flow into the right oil chamber 29 of steering cylinder 28. The oil in the left oil chamber 30 flows back to the oil reservoir through third solenoid valve 25, causing the piston rod to move linearly toward the left side of the diagram, steering the outboard motor to the other side. Upon reaching the specified angle, third solenoid valve 25 closes, maintaining the oil pressure in the right oil chamber 29 and the steering angle. Simultaneously, on-off valve 23 is de-energized, allowing the oil output by mechanical pump 19 to continue flowing to cooling circuit 24.

[0076] When on-off valve 23 activates and closes cooling circuit 24, the NW oil circuit opens check valve 3, ensuring the release of oil pressure in accumulator 4. The third and fourth hydraulically controlled check valves 26 and 27 close. Simultaneously, the tilting cylinder function is temporarily inhibited until the fault in second solenoid valve 22 is repaired. By activating the backup steering function, the boat can safely return to port or a designated location.

[0077] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0078] In the description of this application, it should be noted that the terms "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0079] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or vertical, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0080] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An integrated hydraulic control system for outboard motor steering, tilting, and motor electronic control and oil cooling, characterized by: The invention comprises a steering wheel (100), a tilting control button (130), a controller (110) and a hydraulic system (120), wherein the signal output end of the steering wheel (100) is connected to the signal receiving end of the controller (110), the signal output end of the tilting control button (130) is connected to the signal receiving end of the controller (110), the output end of the controller (110) is connected to the input end of the hydraulic system (120), and the hydraulic system (120) outputs oil to the first and second tilting cylinders (11, 12) and / or the steering cylinder (28) respectively through hydraulic control, so as to control the tilting and steering functions of the outboard motor respectively; The hydraulic system (120) includes a tilting hydraulic system for controlling the tilting of the outboard motor and a steering hydraulic system for controlling the steering of the outboard motor, wherein the tilting hydraulic system is assisted in controlling the steering hydraulic system by a redundant auxiliary steering system; The hydraulic system for lifting includes In the tilting circuit system, the oil of the energy accumulator (4) is output to the first solenoid valve (6), and the oil is connected to the bottom oil chambers of the first and second tilting oil cylinders (11, 12) through the first solenoid valve (6), pushing the piston rods of the tilting oil cylinders to move upward, causing the outboard motor to move upward, and at the same time closing the second hydraulically controlled one-way valve (18), maintaining the oil pressure in the bottom oil chambers of the first and second tilting oil cylinders (11, 12), so that the outboard motor maintains the current tilting position; In the descending circuit system, after the first solenoid valve (6) is filled with oil, the first solenoid valve (6) connects the oil to the upper oil chambers of the first and second lifting cylinders (11, 12), and at the same time, the oil in the bottom oil chambers of the first and second lifting cylinders (11, 12) is discharged into the oil pot (31) through the first solenoid valve (6), pushing the piston rod of the lifting cylinder to move downward, causing the outboard motor to move downward, and at the same time, closing the first hydraulic control one-way valve (17), maintaining the oil pressure in the upper oil chamber (15) of the second lifting cylinder (12), causing the outboard motor to maintain the current descending position; The steering hydraulic system realizes the left and right linear motion of the piston rod of the steering cylinder. The piston rod of the steering oil cylinder moves linearly to the right. When the steering wheel (100) outputs a signal to the controller (110), the controller (110) outputs a signal to the second solenoid valve (22), and the valve core of the second solenoid valve moves to the left, the oil enters the left chamber (30) of the steering oil cylinder (28), and at the same time, the oil in the right chamber (29) of the steering oil cylinder is discharged into the oil pot (31) through the second solenoid valve. The piston rod of the steering oil cylinder moves linearly to the right. At the same time, the second solenoid valve and the fourth hydraulically controlled one-way valve (27) are closed to maintain the oil pressure in the right chamber (29), and the right steering of the outboard motor remains unchanged. The piston rod of the steering oil cylinder moves linearly to the left. When the steering wheel (100) outputs a signal to the controller (110), the controller (110) outputs a signal to the second solenoid valve (22), and the valve core of the second solenoid valve moves to the right, the oil enters the right chamber (29) of the steering oil cylinder (28), and at the same time, the oil in the left chamber (30) of the steering oil cylinder is discharged into the oil pot (31) through the second solenoid valve. The piston rod of the steering oil cylinder moves linearly to the left. At the same time, the second solenoid valve and the third hydraulically controlled one-way valve (26) are closed to maintain the oil pressure in the left chamber (30), and the left steering of the outboard motor remains unchanged. Assisted steering system The steering cylinder moves right linearly, and the steering wheel (100) outputs a signal to the controller (110). The controller (110) outputs a signal to the third solenoid valve (25). After the cooling circuit (24) is closed, the oil output by the mechanical pump (19) flows into the left chamber (30) of the steering cylinder (28). The oil in the right chamber (29) flows back to the mechanical oil pot (32) through the third solenoid valve (25). The piston rod of the steering cylinder moves rightward. At the same time, after reaching the specified angle, the third solenoid valve (25) is closed. The oil in the left chamber (30) maintains the oil pressure, and the right steering angle of the outboard motor remains unchanged. and / or, The steering cylinder moves in a straight line to the left, and the steering wheel (100) outputs a signal to the controller (110). The controller (110) outputs a signal to the third solenoid valve (25). After the cooling circuit (24) is closed, the oil output by the mechanical pump (19) flows into the right chamber (29) of the steering cylinder (28). The oil in the left chamber (30) flows back to the mechanical oil pot through the third solenoid valve (25). The piston rod of the steering cylinder moves in a left direction. After reaching the specified angle, the third solenoid valve (25) is closed. The oil in the right chamber (29) maintains the oil pressure, and the right steering angle of the outboard motor remains unchanged.

2. The outboard motor steering, tilting, motor electronic control, oil cooling integrated hydraulic control system according to claim 1, characterized in that: The assisted steering system also includes When the switch valve (23) is activated and the cooling circuit (24) is closed, the fifth hydraulically controlled one-way valve (3) is opened and the third and fourth hydraulically controlled solenoid valves (26, 27) are closed, the accumulator controls the left and right movement of the steering cylinder (28) through the NW oil circuit.

3. The outboard motor steering, tilting, motor electronic control, oil cooling integrated hydraulic control system according to claim 1, characterized in that: A second and a third overflow valve (20, 21) are connected between the mechanical pump and the mechanical oil pot.

4. The outboard motor steering, tilting, motor electronic control, oil cooling integrated hydraulic control system according to claim 1, characterized in that: A pressure sensor (5) is connected between the energy accumulator (4) and the first and second solenoid valves (6, 24).

5. The outboard motor steering, tilting and motor electronic control and oil cooling integrated hydraulic control system according to claim 1, characterized in that: The first, second and third solenoid valves (6, 24, 25) are all three-position four-way solenoid valves.

6. The outboard motor steering, tilting, motor electronic control, oil cooling integrated hydraulic control system according to claim 1, characterized in that: The mechanical pump (19) is connected to the cooling circuit (24) via a switch valve (23).

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