Outboard engine steering and tilting integrated hydraulic control system

Abstract

The present invention relates to an integrated hydraulic control system for steering and tilting an outboard motor, comprising 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, or a steering cylinder, respectively, through hydraulic control, for controlling the tilting and steering functions of the outboard motor, respectively. 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. The tilting hydraulic system is assisted in controlling the steering hydraulic system by an auxiliary steering system. The present invention can reduce the cost of use, and the auxiliary steering system serves as a backup steering function in an emergency, thereby ensuring the safety of the boat.

Description

Technical Field

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

[0002] Currently, an integrated hydraulic control system is designed for the tilting and steering control of an electric outboard motor, which can reduce the weight, volume and cost of the hydraulic system and thus enable the hydraulic system to be arranged on the outboard motor.

[0003] At the same time, since the steering function involves a higher level of safety performance, especially the wire-controlled steering system, such as the steering system that controls the steering function through a motor, solenoid valve or electronic oil pump, when certain reasons cause the motor, solenoid valve and other functions to fail, the system loses the steering function, thereby affecting the safety of the boat. Summary of the Invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide an outboard motor steering and warping integrated hydraulic control system.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An integrated hydraulic control system for steering and tilting an outboard motor includes 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, and the output end of the controller is connected to the input end of the hydraulic system. The hydraulic system outputs oil to a first and second tilting cylinders, or a steering cylinder, respectively, through hydraulic control, for controlling the tilting and steering functions of the outboard motor.

[0007] 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 an auxiliary steering system;

[0008] The hydraulic system for lifting includes

[0009] The tilting circuit system transmits the signal of the tilting control button to the controller. The control signal of the controller controls the motor pump, which outputs oil. The oil passes through the second hydraulically controlled one-way valve and the second solenoid valve and is connected to the bottom oil chambers of the first and second tilting cylinders, realizing the upward movement of the piston rod of the tilting cylinder and driving the outboard motor to move upward and tilt the cylinder.

[0010] In the descending circuit system, the signal from the lifting control button is transmitted to the controller, and the control signal from the controller controls the motor pump, which outputs oil. The oil is then connected to the second lifting cylinder through the first hydraulically controlled one-way valve and the first solenoid valve. At the same time, the second hydraulically controlled one-way valve is opened, and the bottom oil chamber of the first and second lifting cylinders flows back into the oil pot. The top oil chamber of the second lifting cylinder is pushed by the oil, and the piston rod of the second lifting cylinder moves downward, thereby driving the outboard motor to move downward.

[0011] Steering hydraulic system, realizing left and right linear movement of steering cylinder piston rod;

[0012] The right linear motion of the steering cylinder transmits a signal to the controller when the steering wheel is turned. The controller controls the electronic oil pump to output oil to the oil circuit. The oil enters the right oil chamber of the steering cylinder through the fourth hydraulically controlled one-way valve, pushing the piston rod of the steering cylinder to the left, realizing the right steering of the outboard motor.

[0013] The left linear motion of the steering cylinder transmits a signal to the controller when the steering wheel is turned. The controller controls the electronic oil pump to output oil to the oil circuit. The oil enters the left oil chamber of the steering cylinder through the third hydraulically controlled one-way valve, pushing the piston rod of the steering cylinder to the right, realizing the left steering of the outboard motor.

[0014] Assisted steering system

[0015] The controller's signal is transmitted to the first solenoid valve, which is connected to the right oil chamber of the steering cylinder through the oil line NR, so that the outboard motor can turn right.

[0016] The signal from the controller is transmitted to the second solenoid valve, which is connected to the left oil chamber of the steering cylinder through the oil line NL, so that the outboard motor can turn left.

[0017] Preferably, in the outboard motor steering and tilting integrated hydraulic control system, the first solenoid valve and the second solenoid valve are both two-position three-way solenoid valves.

[0018] Preferably, in the outboard motor steering and warping integrated hydraulic control system, the motor pump is connected to the oil tank through the first relief valve and the second relief valve, and the electronic oil pump is also connected to the oil tank through the third relief valve and the fourth relief valve.

[0019] Preferably, the outboard motor steering and tilting integrated hydraulic control system sends an instruction through the controller to control the motor pump to stop rotating and stop outputting oil to the first and second tilting cylinders after the outboard motor reaches the specified position. Under the action of the second hydraulically controlled one-way valve, the oil in the bottom oil chamber of the tilting cylinder maintains the piston rod position of the first and second tilting cylinders, so that the outboard motor keeps the tilted position.

[0020] Preferably, the outboard motor steering and tilting integrated hydraulic control system sends an instruction through the controller to control the motor pump to stop rotating and stop outputting oil to the second tilting cylinder after the outboard motor reaches the specified position, maintains the oil pressure in the top oil chamber of the second tilting cylinder, keeps the position of the piston rod, and the outboard motor is also maintained in this position.

[0021] Preferably, in the outboard motor steering and tilting integrated hydraulic control system, after the outboard motor reaches the specified position, the controller transmits a signal to the electronic oil pump to stop it from rotating and stopping outputting oil to the steering cylinder. The oil in the right oil chamber of the steering cylinder is prevented from flowing back to the oil pot under the action of the second hydraulically controlled one-way valve, thereby maintaining the piston rod of the steering cylinder and maintaining the right steering angle of the outboard motor.

[0022] Preferably, in the outboard motor steering and tilting integrated hydraulic control system, after the outboard motor reaches a specified position, the controller transmits a signal to the electronic oil pump to stop it from rotating and outputting oil to the steering cylinder. The oil in the left oil chamber of the steering cylinder is prevented from flowing back to the oil tank by the action of the first hydraulically controlled one-way valve, thereby maintaining the piston rod of the steering cylinder and maintaining the left steering angle of the outboard motor;

[0023] Preferably, in the outboard motor steering and tilting integrated hydraulic control system, the auxiliary steering system is activated when the electronic oil pump fails, and the tilting function of the tilting hydraulic system is temporarily suppressed.

[0024] Preferably, the outboard motor steering and tilting integrated hydraulic control system,

[0025] In the assisted steering system

[0026] When the controller transmits a signal to the motor pump, the motor pump outputs oil to the oil circuit NR. The oil enters the right oil chamber of the steering cylinder through the first hydraulically controlled one-way valve and the first solenoid valve, thereby pushing the piston rod of the steering cylinder to the left, thus realizing the right steering of the outboard motor.

[0027] When the controller transmits a signal to the motor pump, the motor pump outputs oil to the oil circuit NL. The oil enters the left oil chamber of the steering cylinder through the second hydraulically controlled one-way valve and the second solenoid valve, thereby pushing the piston rod of the steering cylinder to move to the right, thereby realizing the left turn of the outboard motor.

[0028] By means of the above solution, the present invention has at least the following advantages:

[0029] The present invention adopts a motor pump and an electronic oil pump to control the lifting oil cylinder and the steering oil cylinder respectively, and at the same time realizes a backup steering function in an emergency state through the motor pump to ensure the safety of the boat.

[0030] 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

[0031] 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.

[0032] Figure 1 It is a structural schematic diagram of the present invention;

[0033] Figure 2 It is a hydraulic principle diagram of the hydraulic system of the present invention. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] Example

[0037] like Figure 1 and Figure 2 As shown, the outboard motor steering and tilting integrated hydraulic control system 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 12 and 13, or the steering cylinder 24 through hydraulic control, respectively, for controlling the tilting and steering functions of the outboard motor;

[0038] 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 an auxiliary steering system.

[0039] The hydraulic system for lifting includes

[0040] In the tilting circuit system, the signal from the tilting control button 130 is transmitted to the controller 110. The control signal from the controller 110 controls the motor pump 3, which outputs oil. The oil passes through the second hydraulically controlled one-way valve 5 and the second solenoid valve 7 and is connected to the bottom oil chambers 15 and 17 of the first and second tilting cylinders 12 and 13, respectively, to realize the upward movement of the piston rod of the tilting cylinder and drive the outboard motor to move upward and perform the tilting function.

[0041] After the outboard motor reaches the designated position, the controller 110 issues a command to control the motor pump 3 to stop rotating, and stops outputting oil to the first and second tilting cylinders 12 and 13. Under the action of the second hydraulically controlled one-way valve 5, the oil in the bottom oil chambers 15 and 17 of the tilting cylinders maintains the piston rod position of the first and second tilting cylinders 12 and 13, so that the outboard motor remains in the tilted position.

[0042] In the descending circuit system, the signal from the lifting control button 130 is transmitted to the controller 110. The control signal from the controller 110 controls the motor pump 3, which outputs oil. The oil is then connected to the second lifting cylinder 13 through the first hydraulically controlled one-way valve 4 and the first solenoid valve 6. At the same time, the second hydraulically controlled one-way valve 5 is opened, and the bottom oil chambers 15 and 17 of the first and second lifting cylinders 12 and 13 flow back into the oil pot 21. The top oil chamber 16 of the second lifting cylinder 13 is pushed by the oil, causing the piston rod of the second lifting cylinder to move downward, thereby driving the outboard motor downward.

[0043] After the outboard motor reaches the designated position, the controller 110 issues a command to control the motor pump 3 to stop rotating, stop outputting oil to the second tilting oil cylinder 13, maintain the oil pressure in the top oil chamber 16 of the second tilting oil cylinder, keep the position of the piston rod, and the outboard motor also remains in this position;

[0044] Steering hydraulic system, realizing left and right linear movement of steering cylinder piston rod;

[0045] The right linear motion of the steering cylinder transmits a signal to the controller 110 when the steering wheel 100 is turned. The controller controls the electronic oil pump 18 to output oil to the oil circuit. The oil enters the right oil chamber 26 of the steering cylinder 24 through the fourth hydraulically controlled one-way valve 23, pushing the piston rod of the steering cylinder to the left, realizing the right steering of the outboard motor.

[0046] After the outboard motor reaches the designated position, the controller 110 transmits a signal to the electronic oil pump 18, causing it to stop rotating and stop outputting oil to the steering cylinder 24. The oil in the right oil chamber 25 of the steering cylinder 24 is prevented from flowing back to the oil pot 21 by the action of the second hydraulically controlled one-way valve 23, thereby maintaining the piston rod of the steering cylinder 24 and maintaining the right steering angle of the outboard motor.

[0047] The left linear motion of the steering cylinder transmits a signal to the controller 110 when the steering wheel 100 is turned. The controller controls the electronic oil pump 18 to output oil through the oil circuit. The oil enters the left oil chamber 25 of the steering cylinder 24 through the third hydraulically controlled one-way valve 22, pushing the piston rod of the steering cylinder to the right, thus achieving left steering of the outboard motor.

[0048] After the outboard motor reaches the designated position, the controller 110 transmits a signal to the electronic oil pump 18, causing it to stop rotating and stop outputting oil to the steering cylinder 24. The oil in the left oil chamber 25 of the steering cylinder 24 is prevented from flowing back to the oil pot 21 by the action of the first hydraulically controlled one-way valve 22, thereby maintaining the piston rod of the steering cylinder 24 and maintaining the left steering angle of the outboard motor.

[0049] Assisted steering system

[0050] The signal from the controller 110 is transmitted to the first solenoid valve 6, which is connected to the right oil chamber 26 of the steering cylinder 24 through the oil passage NR, so that the outboard motor can turn right.

[0051] The signal of the controller 110 is transmitted to the second solenoid valve 7, and the second solenoid valve 7 is connected to the left oil chamber 26 of the steering cylinder 24 through the oil line NL, so that the outboard motor can achieve left steering.

[0052] In the present invention, the first solenoid valve 6 and the second solenoid valve 7 are both two-position three-way solenoid valves.

[0053] The motor pump 3 of the present invention is connected to the oil pot 21 through the first relief valve 1 and the second relief valve 2 , while the electronic oil pump 18 is also connected to the oil pot 21 through the third relief valve 19 and the fourth relief valve 20 .

[0054] In the present invention, the auxiliary steering system is activated when the electronic oil pump fails, and at the same time the tilting function of the tilting hydraulic system is temporarily suppressed.

[0055] Among them, in the auxiliary steering system

[0056] When the controller 110 transmits a signal to the motor pump 3, the motor pump 3 outputs oil to the oil circuit NR. The oil enters the right oil chamber 26 of the steering cylinder 24 through the first hydraulically controlled one-way valve 4 and the first solenoid valve 6, thereby pushing the piston rod of the steering cylinder to move to the left, thereby realizing the right steering of the outboard motor.

[0057] When the controller 110 transmits a signal to the motor pump 3, the motor pump 3 outputs oil to the oil circuit NL, and the oil enters the left oil chamber 25 of the steering cylinder 24 through the second hydraulically controlled one-way valve 5 and the second solenoid valve 7, thereby pushing the piston rod of the steering cylinder to move to the right, thereby realizing the left turn of the outboard motor.

[0058] The working principle of the present invention is as follows:

[0059] The present invention is an integrated hydraulic control system for controlling the lifting and steering of an electric-driven outboard motor device.

[0060] A controlled motor pump provides hydraulic power to the tilting cylinder. When the motor rotates forward, oil is pumped into one side of the cylinder, tilting the outboard motor. Reverse the motor, and oil is removed from the cylinder on one side and pumped into the other side, allowing the outboard motor to submerge.

[0061] By controlling the rotation direction and speed of another electronic oil pump, an adjustable oil flow rate is supplied to the steering cylinder, controlling the outboard motor's steering function. When the electronic oil pump rotates forward, oil enters the right chamber of the steering cylinder, pushing the cylinder piston to the left, thereby turning the outboard motor right. Conversely, when the electronic oil pump rotates reversely, oil enters the left chamber of the steering cylinder while simultaneously draining oil from the right chamber. This causes the cylinder piston to move rightward, thereby turning the outboard motor left.

[0062] Since the steering function involves a high safety level (common knowledge in this field), the system has a redundant steering function (i.e., an auxiliary steering system). When an unexpected failure occurs in the wire-controlled steering system, such as the electronic oil pump failing to work, the system can use the tilting motor oil pump to provide hydraulic power to the steering cylinder. Of course, the tilting function is temporarily suppressed during this period. The controller gives a current signal to the first and second steering redundant control solenoid valves 6 and 7, turns on the motor pump, and then controls the left and right movement of the piston rod of the steering cylinder through the forward and reverse rotation of the motor oil pump, thereby controlling the steering function of the outboard motor. At the same time, the first and second solenoid valves 6 and 7 are controlled, and the oil circuits of the first and second tilting cylinders are closed, temporarily suppressing the tilting function of the outboard motor.

[0063] The lifting and steering functions of the outboard motor driven power device of the present invention are respectively realized by the first and second lifting cylinders 12, 13 and the steering cylinder 24.

[0064] When the driver turns the steering wheel 100, or presses the tilt control button 130, Figure 1In the embodiment of the present invention, the sensor or the tilt button in the steering wheel 100 outputs a signal to the controller 110. The controller 110 outputs an electrical signal to the hydraulic system 120 according to a set control program (a program set by a person skilled in the art). The hydraulic system 120 outputs oil to the designated first and second tilt cylinders 12 and 13, or the steering cylinder 24, respectively, through hydraulic control, to control the tilting and steering movements of the outboard motor.

[0065] The working principle of the hydraulic system 120 is shown in FIG. Figure 2 Hydraulic schematic diagram.

[0066] The hydraulic system includes a motor pump 3 and an electronic oil pump 18 for supplying oil to the tilting cylinders 12 and 13 and the steering cylinder 24, respectively. The motor pump 3 includes a brushed or brushless motor driving an oil pump, which can be various types of external or internal gear pumps, plunger pumps, or other types of oil pumps. The specific form and structure are not described in detail here and are well known in the art. The motor pump 3 and the electronic oil pump 18 can both achieve forward and reverse bidirectional rotation and bidirectional oil output.

[0067] When the tilt control button 130 signal is input to the controller 110, the controller 110 sends an electrical signal to the motor pump 3 to drive the motor pump to Figure 2 When rotating to the right, the motor pump 3 outputs oil to the oil circuit. The oil enters the bottom oil chambers 15 and 17 of the first and second lifting cylinders 12 and 13 through the second hydraulically controlled one-way valve 5 and the second 2-position 3-way solenoid valve 7, thereby pushing the piston rods of the first and second lifting cylinders to move upward, realizing the lifting function of the outboard motor.

[0068] After the outboard motor reaches the designated position, the controller 110 issues a command, the motor pump 3 stops rotating, and stops outputting oil to the bottom oil chambers 15 and 17 of the first and second lifting cylinders. Since the second hydraulically controlled one-way valve 5 prevents the oil from flowing back to the oil pot 21, the piston rod positions of the first and second lifting cylinders 12 and 13 can be maintained, thereby keeping the lifting position of the outboard motor for a long time.

[0069] When the motor pump 3 rotates clockwise, the oil in the oil pot and the oil in the upper oil chamber of the first tilting oil cylinder 12 are sucked into the oil suction port of the motor pump 3, and the oil quickly flows to the suction port through the first one-way valve 9. At the same time, the oil in the upper oil chamber of the second tilting oil cylinder 13 flows into the oil suction port of the oil pump through the first hydraulic one-way valve 4. The oil pressure in the oil circuit on the right side of the motor pump 3 can open the first hydraulic one-way valve 4, allowing the oil to flow back to the oil pump suction port.

[0070] Similarly, when the tilt control button 130 signal is input to the controller 110, the controller 110 controls the motor pump 3 to Figure 2When rotating to the left, the oil flows through the first hydraulically controlled one-way valve 4 and the first two-position three-way solenoid valve 6 into the upper chamber of the second lifting cylinder 13. At the same time, the oil pressure on the left side opens the second hydraulically controlled one-way valve 5, discharging the oil in the lower chamber of the second lifting cylinder and entering the oil pump suction port. A small amount of oil also flows through the first throttle port 8 and the first one-way valve 9 into the upper chamber of the first lifting cylinder 12. This upper chamber is connected to the oil pot and eventually enters the oil pot. The oil in the top oil chamber 16 of the second bridge cylinder pushes the piston downward, and the piston rod drives the outboard motor downward.

[0071] At the same time, the top oil chamber 14 of the first lifting cylinder also flows back into the oil pot 21 through the second throttle port 10 and the second one-way valve 11.

[0072] When the outboard motor reaches the designated position, the controller 110 sends a signal to the motor pump 3 to stop rotating. Similarly, the oil in the top oil chamber 16 is maintained so that the piston rod maintains this position and the outboard motor also maintains this position.

[0073] The function of the first and second relief valves 1 and 2 is to prevent the system oil from being too high. When the pressure exceeds the specified value, the system oil pressure will be maintained below the set value.

[0074] When the driver turns the steering wheel 100, the sensor within the steering wheel 100 outputs a signal to the controller 110. Controller 110, based on a pre-set control program (configured by those skilled in the art), outputs an electrical signal to the hydraulic system 120. The hydraulic system 120, through hydraulic control, outputs oil to the steering cylinder 24 and the left and right oil chambers 25 and 26, pushing the piston rod left and right, thereby steering the outboard motor. The electronic oil pump 18 includes a brushless motor that drives an oil pump through a motor controller. The pump may be any type of external or internal gear pump, a plunger pump, or other type of oil pump. The specific structure is not described in detail here, as it is known in the art. The electronic oil pump 18 can rotate in both directions, and can actively adjust its speed to output oil at an adjustable flow rate.

[0075] When the controller 110 sends an electrical signal to the electronic oil pump 18, the electronic oil pump is driven to Figure 2 The oil flows through the fourth hydraulic one-way valve 23 into the right oil chamber 26 of the steering cylinder 24, and then pushes the piston rod of the steering cylinder to Figure 2 The direction moves to the left to realize the side steering function of the outboard motor.

[0076] After the outboard motor reaches the designated position, the controller 110 issues a command, and the electronic oil pump 18 stops rotating and stops outputting oil to the steering cylinder 24. The oil in the right oil chamber 26 is prevented by the fourth hydraulically controlled one-way valve 23 from flowing back to the oil pot 21, so that the piston rod position of the steering cylinder 24 can be maintained, thereby maintaining the right steering angle of the outboard motor for a long time.

[0077] At the same time, when the electronic oil pump 18 rotates to the right, the oil suction port of the electronic oil pump 18 sucks in the oil in the oil pot and the oil in the illustrated left oil chamber 25 of the steering cylinder 24, and quickly flows to the oil suction port through the third hydraulically controlled one-way valve 22. The oil in the right oil chamber 26 of the steering cylinder 24 flows into the oil suction port of the oil pump through the fourth hydraulically controlled one-way valve 23. The oil pressure in the oil circuit of the electronic oil pump 18 can open the third hydraulically controlled one-way valve 22, so that the oil can flow back to the oil pump suction port.

[0078] Similarly, when the controller 110 controls the electronic oil pump 3 Figure 2 When rotating to the left, the oil enters the left chamber 25 of the oil cylinder 24 through the third hydraulically controlled one-way valve 22. At the same time, the oil pressure opens the fourth hydraulically controlled one-way valve 23, discharging the oil in the right chamber 26 of the steering cylinder and entering the oil pump suction port. After reaching the specified position, the controller 110 sends a signal to the electronic oil pump 18 to stop rotating. The oil in the left oil chamber 25 of the steering cylinder is maintained inside, so that the piston rod of the steering cylinder maintains the current position, and the outboard motor also maintains the current position.

[0079] The function of the third and fourth relief valves 19 and 20 is to prevent the system oil from being too high and to operate after exceeding the specified value to maintain the system oil pressure below the set value.

[0080] If the electronic oil pump 18 fails for some reason and cannot supply oil to the steering cylinder, the controller 110 activates the backup steering function according to a pre-set program. The controller 110 sends a specified electrical signal to the first and second solenoid valves 6 and 7, causing the valve cores of the first and second solenoid valves 6 and 7 to move and connect oil passages NL and NR. Simultaneously, the first and second solenoid valves 6 and 7 close the oil passage from the motor pump 3 to the tilting cylinders 12 and 13, allowing the motor pump 3 to provide steering power.

[0081] The specific work is as follows:

[0082] When the controller 110 sends an electrical signal to the motor pump 3, the motor pump is driven to Figure 2 When the motor rotates to the right, the motor pump 3 outputs oil to the oil circuit. The oil enters the left oil chamber 25 of the steering cylinder 24 through the second hydraulically controlled one-way valve 5 and the second solenoid valve 7, and then pushes the piston rod of the steering cylinder to move to the right as shown in Figure 2, realizing the left turn of the outboard motor.

[0083] After the outboard motor reaches the specified angle, the controller 110 issues a command, causing the motor pump 3 to stop rotating and cease outputting oil to the steering cylinder 24. The oil in the left oil chamber 25 is prevented by the second hydraulically controlled one-way valve 5 from flowing back into the oil pot 21, maintaining the piston rod position of the steering cylinder 24 and thus maintaining the outboard motor's steering angle for a long time. When the motor pump 3 rotates right, the oil in the oil pot and the oil in the right oil chamber 26 of the steering cylinder 24 are sucked into the motor pump 3's oil intake port, rapidly flowing through the one-way valve to the suction port. Simultaneously, the oil in the right oil chamber of the steering cylinder 24 flows through the first hydraulically controlled one-way valve 4 into the oil pump's oil intake port. The oil pressure in the motor pump 3's oil circuit opens the first hydraulically controlled one-way valve 4, allowing the oil to flow back into the oil pump's oil intake port.

[0084] Similarly, when the controller 110 controls the motor pump 3 Figure 2 When rotating to the left, the oil passes through the first hydraulically controlled one-way valve 4, activates the first solenoid valve 6 and enters the right oil chamber 26 of the steering cylinder 24. At the same time, the second hydraulically controlled one-way valve 5 is opened due to the oil pressure, and the oil in the left oil chamber 25 of the steering cylinder is discharged and enters the oil pump suction port. The oil in the right oil chamber 26 of the steering cylinder pushes the piston to move to the left, and the piston rod drives the outboard motor to turn left.

[0085] When the designated position is reached, the controller 110 sends a signal to the motor pump 3 to stop the rotation. Similarly, the oil in the right cavity 26 of the steering cylinder is maintained therein, so that the piston rod maintains the current position and the outboard motor also maintains the current steering position.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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. Outboard engine steering and tilting integrated hydraulic control system, 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 (12, 13) or the steering cylinder (24) through hydraulic control, respectively, for controlling the tilting and steering functions of the outboard motor; The hydraulic system (120) comprises 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 assists in controlling the steering hydraulic system through an auxiliary steering system; The hydraulic system for lifting includes: A tilting circuit system, wherein a signal from a tilting control button (130) is transmitted to a controller (110), a control signal from the controller (110) controls a motor pump (3), and the motor pump (3) outputs oil, which is then communicated to the bottom oil chambers of the first and second tilting oil cylinders (12, 13) through a second hydraulically controlled one-way valve (5) and a second solenoid valve (7), thereby realizing an upward movement of the piston rod of the tilting oil cylinder and driving the outboard motor to move upward and perform a tilting function; The descending circuit system transmits a signal from the lifting control button (130) to the controller (110), and the control signal from the controller (110) controls the motor pump (3), and the motor pump (3) outputs oil, which is then communicated to the second lifting oil cylinder (13) through the first hydraulically controlled one-way valve (4) and the first solenoid valve (6). At the same time, the second hydraulically controlled one-way valve (5) is opened, and the bottom oil chambers of the first and second lifting oil cylinders (12, 13) flow back into the oil pot (21), while the top oil chamber (16) of the second lifting oil cylinder (13) is pushed by the oil, and the piston rod of the second lifting oil cylinder moves downward, and the piston rod drives the outboard motor to move downward; Steering hydraulic system, realizing left and right linear movement of steering cylinder piston rod; The right linear motion of the steering cylinder transmits a signal to the controller (110) through the steering wheel (100). The controller controls the electronic oil pump (18) to output oil to the oil circuit. The oil enters the right oil chamber (26) of the steering cylinder (24) through the fourth hydraulically controlled one-way valve (23) to push the piston rod of the steering cylinder to move left, thereby realizing right steering of the outboard motor. The left linear motion of the steering cylinder transmits a signal to the controller (110) through the steering wheel (100). The controller controls the electronic oil pump (18) to output oil through the oil circuit. The oil enters the left oil chamber (25) of the steering cylinder (24) through the third hydraulically controlled one-way valve (22) to push the piston rod of the steering cylinder to move rightward, thereby realizing the left steering of the outboard motor. The signal of the controller (110) is transmitted to the first solenoid valve (6), and the first solenoid valve (6) is connected to the right oil chamber (26) of the steering cylinder (24) through the oil path NR, so that the outboard motor can achieve right steering; The signal of the controller (110) is transmitted to the second solenoid valve (7), and the second solenoid valve (7) is connected to the left oil chamber (25) of the steering cylinder (24) through the oil line NL, so that the outboard motor can achieve left steering; The motor pump (3) is connected to the oil pot (21) through the first overflow valve (1) and the second overflow valve (2), and the electronic oil pump (18) is also connected to the oil pot (21) through the third overflow valve (19) and the fourth overflow valve (20); The auxiliary steering system is activated when the electronic oil pump fails, and the tilting function of the tilting hydraulic system is temporarily suppressed.

2. The outboard motor steering and tilting integrated hydraulic control system according to claim 1, characterized in that: The first solenoid valve (6) and the second solenoid valve (7) are both two-position three-way solenoid valves.

3. The outboard motor steering and tilting integrated hydraulic control system according to claim 1, characterized in that: After the outboard motor reaches the designated position, the controller (110) issues a command to control the motor pump (3) to stop rotating and stop outputting oil to the first and second tilting oil cylinders (12, 13). Under the action of the second hydraulically controlled one-way valve (5), the oil in the bottom oil chamber of the tilting oil cylinder maintains the position of the piston rod of the first and second tilting oil cylinders (12, 13), so that the outboard motor remains in the tilted position.

4. The outboard motor steering and tilting integrated hydraulic control system according to claim 1, characterized in that: After the outboard motor reaches the designated position, the controller (110) issues a command to control the motor pump (3) to stop rotating and stop outputting oil to the second lifting cylinder (13), thereby maintaining the oil pressure in the top oil chamber (16) of the second lifting cylinder, so that the position of the piston rod is maintained, and the outboard motor is also maintained in this position.

5. The outboard motor steering and tilting integrated hydraulic control system according to claim 1, characterized in that: After the outboard motor reaches the designated position, the controller (110) transmits a signal to the electronic oil pump (18) to stop the rotation and stop outputting oil to the steering cylinder (24). The oil in the right oil chamber (26) of the steering cylinder (24) is prevented from flowing back to the oil pot (21) by the action of the fourth hydraulically controlled one-way valve (23), thereby maintaining the piston rod of the steering cylinder (24) and maintaining the right steering angle of the outboard motor.

6. The outboard motor steering and tilting integrated hydraulic control system according to claim 1, characterized in that: After the outboard motor reaches the designated position, the controller (110) transmits a signal to the electronic oil pump (18) to stop the rotation and stop outputting oil to the steering cylinder (24). The oil in the left oil chamber (25) of the steering cylinder (24) is prevented from flowing back to the oil pot (21) by the action of the third hydraulically controlled one-way valve (22), thereby maintaining the piston rod of the steering cylinder (24) and maintaining the left steering angle of the outboard motor.

7. The outboard motor steering and tilting integrated hydraulic control system according to claim 1, characterized in that: In the assisted steering system, When the controller (110) transmits a signal to the motor pump (3), the motor pump (3) outputs oil to the oil circuit NR, and the oil enters the right oil chamber (26) of the steering cylinder (24) through the first hydraulically controlled one-way valve (4) and the first solenoid valve (6), thereby pushing the piston rod of the steering cylinder to move to the left, thereby realizing the right steering of the outboard motor; When the controller (110) transmits a signal to the motor pump (3), the motor pump (3) outputs oil to the oil circuit NL, and the oil enters the left oil chamber (25) of the steering cylinder (24) through the second hydraulically controlled one-way valve (5) and the second solenoid valve (7), thereby pushing the piston rod of the steering cylinder to move to the right, thereby realizing the left turn of the outboard motor.

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