Class / Patent application number | Description | Number of patent applications / Date published |
440084000 | ENGINE, MOTOR, OR TRANSMISSION CONTROL MEANS | 46 |
20080214069 | BOAT PROPULSION APPARATUS AND BOAT - In a boat propulsion apparatus including an engine control device for controlling operation of an engine, the engine control device includes a first ID storage and a second ID storage, a first ID is stored in the first ID storage beforehand, and the engine control device is communicably connected to a controller of a remote control device over a network. A signal containing a second ID is received from the controller when the engine control device and the controller are connected to the network for the first time and is stored in the second ID storage. Thus, maintenance and management of the engine are easy, and also it is possible to prevent a mischievous operation or theft of the boat propulsion apparatus. | 09-04-2008 |
20090042465 | Dual propulsion steering and control system for watercraft - A dual propulsion steering and control system for a watercraft which utilizes simple movement of an operator's feet to independently vary thrust from a pair of propulsion units, each mounted on opposite sides of the centerline of a watercraft. By varying the amount and direction of thrust on each side, the watercraft may be steered in a multitude of directions, propelled at varying speeds, and turned completely around in a short distance. | 02-12-2009 |
20090047848 | Control device for sailboats - A control device for boats, particularly sailboats, includes a control member, which regulates the operating conditions of an operating unit such as a motor, and which can be moved along a predetermined path and for a predetermined range between two extreme stop positions. The device is configured to be coupled to a linkage or tie rod system and/or displacement and/or position electric/electronic sensors, such that a movement of the control member causes a corresponding movement of a member regulating the operating unit. The control member includes a handle extension movable between an actuating operative position, in which the handle extension is deployed, and a non-operative position, in which the extension is laid down and/or withdrawn to reduce overall dimensions. | 02-19-2009 |
20090269997 | BOAT PROPULSION SYSTEM, AND CONTROL DEVICE AND CONTROL METHOD FOR THE SAME - An outboard motor includes a prime mover, a marine propulsion unit having a propeller arranged to be driven by a rotational force of the prime mover to generate a thrust force, a shift position changing mechanism, a shift position changing mechanism actuator, and a control unit arranged to control the shift position changing mechanism actuator. When the shift position is changed to one of the first shift position and the second shift position from the neutral position, the control unit inhibits a change in the shift position to the other one of the first shift position and the second shift position until a predetermined time period elapses. The above arrangement improves the controllability of a boat propulsion system having an electronically controlled shift mechanism. | 10-29-2009 |
20100022146 | METHOD AND APPARATUS FOR CONTROLLING A MARINE VESSEL - One embodiment of the invention comprises a method for controlling a marine vessel having a first steerable propulsor, a corresponding first reversing device, a second steerable propulsor and a corresponding second reversing device. The method comprises receiving a first vessel control signal corresponding to a rotational movement and no translational movement command, generating at least a first actuator control signal and a second actuator control signal in response to the first vessel control signal, coupling the first actuator control signal to and controlling the first steerable propulsor and the second steerable propulsor, and coupling the second actuator control signal to and controlling the first reversing device and the second reversing device. The method creates rotational forces on the marine vessel with substantially no translational forces on the marine vessel. | 01-28-2010 |
20100184342 | Method for responding to a missing marine propulsion device - A missing outboard motor system provides a microprocessor of the outboard motor with the ability to disable or cause a malfunction of the engine of the outboard motor. This disabling of the outboard motor engine can be programmed to occur upon the detection of tampering relating to a communication system. A global positioning satellite system can be provided to monitor the current position of the outboard motor and report that current position to a remote source, such as a monitoring station. The malfunction that can be caused with regard to the engine can be minor and temporary, but severe enough to induce a thief or co-conspirator to attempt to have the outboard motor repaired. This will assist in relocating the outboard motor and capturing the thief. | 07-22-2010 |
20110151732 | METHOD FOR CONTROLLING A SURFACE DRIVE FOR A WATERCRAFT IN THE UPPER SPEED RANGE - A surface drive for a watercraft with at least two drive units that is operated in different speed-dependent driving modes. The trim angles (τ | 06-23-2011 |
20120295501 | Apparatus and Method for the Control of Engine Throttle for Inboard and Outboard Boat Motors - A ski boat throttle control system incorporating a rotary assembly such as a thumbwheel within the control lever knob which is part of the control lever assembly that is gripped and held by the operator of the boat during use. The incorporation of such a thumbwheel assembly allows the operator to make more controlled adjustment to the speed of the boat when the boat is in normal operational mode and to intuitively make adjustments to the cruise control speed of the boat when in cruise control. | 11-22-2012 |
440085000 | For starter means | 2 |
20090061705 | ENGINE STARTING SYSTEM FOR A MARINE OUTBOARD ENGINE - A marine outboard engine for a watercraft is disclosed. The marine outboard engine includes a starter motor operatively connected to the crankshaft of the engine and a capacitor electrically connected to the starter motor. The capacitor is powering the starter motor to initiate rotation of the crankshaft. An alternator is operatively connected to the engine and is electrically connected to the capacitor for charging the capacitor when the engine is operating. A starting system and a method for operating a starting system of a marine outboard engine are also disclosed. | 03-05-2009 |
20090215334 | MARINE PROPULSION SYSTEM - A marine propulsion system includes an outboard motor including an engine, a propeller, a shift position switching mechanism, an oil pump, valves, and an ECU. The shift position switching mechanism includes hydraulic clutches arranged to change the connection state between the engine and the propeller. The shift position switching mechanism is switchable among forward, reverse, and neutral. A first valve opens and closes the communication between the oil pump and a first hydraulic clutch. A second valve opens and closes the communication between the oil pump and a second hydraulic clutch. A third valve opens and closes the communication between the oil pump and each of third and fourth valves. | 08-27-2009 |
440086000 | For transmission | 24 |
20080233815 | OUTBOARD MOTOR - An outboard motor includes a drive shaft including a pinion gear arranged at one end of the drive shaft, a first driven gear engaged with the pinion gear, a second driven gear engaged with the pinion gear, a first propeller shaft connected to a second propeller, a second propeller shaft connected to a first propeller, and a shift change mechanism arranged to selectively engage the first driven gear with the second propeller shaft, and to selectively engage the second driven gear with the first propeller shaft and with the second propeller shaft. | 09-25-2008 |
20080318482 | Marine Propulsion Control System and a Vessel Containing Such a Marine Propulsion Control System - A marine propulsion control system for controlling a set of propulsion units carried by a hull of a vessel, said marine propulsion control system including an input command regulator for generating a desired delivered thrust by the propulsion units in the set of propulsion units, a set of control units, wherein each control unit is associated with a separate propulsion unit in said set of propulsion units, wherein each control units is arranged to control the delivered thrust of the associated propulsion unit depending on input control signals received by the control unit and vessel including such a propulsion control unit. | 12-25-2008 |
20090209150 | SHIFT MECHANISM OF BOAT PROPULSION UNIT - A shift mechanism transmits rotation of a drive shaft of an engine to a propeller shaft by engaging a shift clutch with a forward gear or a reverse gear is provided. The shift clutch includes a dog clutch movably coupled to the propeller shaft in an axial direction and a synchro clutch movably coupled to the dog clutch in the axial direction. When the dog clutch is moved to the forward gear side or the reverse gear side to make a shift-in, an end surface of the synchro clutch is adapted to be frictionally engaged with an abutting surface provided on the forward gear or an abutting surface provided on the reverse gear before dog engagement between a pawl of the dog clutch and a pawl of the forward gear or a pawl of the reverse gear. Through this arrangement, it is possible to provide a shift mechanism of a boat propulsion unit provided with a synchronization mechanism that realizes a smooth shift-in. | 08-20-2009 |
20090209151 | MARINE PROPULSION SYSTEM - A marine propulsion system includes a transmission mechanism arranged to transmit a driving force generated by an engine to propellers with a speed thereof changed to a low speed reduction ratio and a high speed reduction ratio; a control lever section operated by a user in controlling drive of the engine; and a control portion and an ECU controlling a shift between reduction ratios of the transmission mechanism based on operation of the control lever section by the user. The control portion and the ECU control a shift between reduction ratios of the transmission mechanism based on a transmission control map providing a reference for a shift between reduction ratios of the transmission mechanism taking into consideration an engine speed of the engine and a lever opening of the control lever section. This arrangement provides a marine propulsion system in which both acceleration performance and maximum speed can approach levels that a user desires. | 08-20-2009 |
20090215335 | BOAT PROPULSION SYSTEM, AND CONTROL DEVICE AND CONTROL METHOD THEREFOR - An outboard motor includes a power source, a boat propulsion section, a shift position switching mechanism, a clutch actuator, and a control device. The shift position switching mechanism switches among a first shift position in which a first clutch is engaged and a second clutch is disengaged, a second shift position in which the first clutch is disengaged and the second clutch is engaged, and a neutral position in which both the first clutch and the second clutch are disengaged. When a gear shift is to be made from the first shift position to the second shift position, the control section causes the clutch actuator to gradually increase an engagement force of the second clutch. The outboard motor reduces the load to be applied to the power source and the power transmission mechanism at the time of a gear shift in a boat propulsion system including an electronically controlled shift mechanism. | 08-27-2009 |
20090215336 | BOAT PROPULSION SYSTEM AND BOAT INCLUDING THE SAME - A boat propulsion system includes a shift mechanism arranged to change a shift position among forward, neutral, and reverse. A shift position detection mechanism is connected to a control lever with a wire. The shift position detection mechanism has a detected member and a position detection section. The detected member is displaced corresponding to an operation position of the control lever as the control lever is operated. The position detection section detects a position of the detected member. The position detection section outputs a shift position signal corresponding to the detected position of the detected member. A control device controls the shift position of the shift mechanism on the basis of the shift position signal. The boat propulsion system provided with the shift mechanism of an electronic control type can replace a boat propulsion system provided with a shift mechanism of a mechanical type at low cost. | 08-27-2009 |
20090215337 | BOAT PROPULSION SYSTEM, AND CONTROL DEVICE AND CONTROL METHOD THEREFOR - A boat propulsion system includes a power source, a propulsion section, a shift position switching mechanism arranged to switch among a first shift position, a second shift position, and a neutral position, a gear ratio switching mechanism, an actuator, and a control section. When switching is to be performed from the neutral position to the first shift position and the high-speed gear ratio, the control section is arranged to cause the actuator to, maintain the low-speed gear ratio, switch to the first shift position, and then establish the high-speed gear ratio when the current gear ratio of the gear ratio switching mechanism is the low-speed gear ratio, and cause the actuator to establish the low-speed gear ratio before switching to the first shift position, switch to the first shift position, and then establish the high-speed gear ratio when the current gear ratio of the gear ratio switching mechanism is the high-speed gear ratio. This arrangement improves the durability of a power source and a power transmission mechanism in a boat propulsion system including an electronically controlled shift mechanism. | 08-27-2009 |
20090215338 | MARINE PROPULSION SYSTEM - A marine propulsion system includes a power source, a propeller, a shift mechanism, a control lever, a rotational speed sensor, and a control device. The shift mechanism is switchable among three shift positions including forward, neutral, and reverse. The control lever is operable by the marine vessel operator to switch the shift position of the shift mechanism. The rotational speed sensor detects the rotational speed of the propeller. The control device controls at least one of the power source and the shift mechanism so as to reduce the rotational speed of the propeller if the rotational speed sensor detects a rotational speed of the propeller when the control lever is in a position corresponding to the neutral shift position. As a result, the propeller is prevented from rotating when a control lever is in a neutral position. | 08-27-2009 |
20090221194 | BOAT PROPULSION SYSTEM - A boat propulsion system that easily and finely adjusts the rotational speed of a propeller includes an outboard motor including an engine, a propeller, a shift mechanism, and a control device. The control device controls engaging states of clutches so that the rotational speed of a second power transmission shaft is substantially the same as the rotational speed of a third power transmission shaft in a first mode in which the shift position is a forward or a reverse position. The control device controls the engaging states of the clutches so that the rotational speed of the third power transmission shaft is lower than the rotational speed of the second power transmission shaft in a second mode in which the shift position is the forward or the reverse position. | 09-03-2009 |
20090221195 | BOAT PROPULSION SYSTEM AND CONTROL UNIT - A boat propulsion system that easily and finely adjusts the rotational speed of a propeller includes an outboard motor including a power source, a propeller, a control lever to which an accelerator opening is input, an accelerator opening detection section arranged to output an operating amount of the control lever, a sensitivity switching section, and a control device. A degree of the accelerator opening relative to the operating amount of the control lever is switched by the sensitivity switching section operated by a boat operator. The sensitivity switching section outputs the degree of the accelerator opening relative to the input operating amount of the control lever as a sensitivity switching signal. The control device controls output of the power source based on the operating amount of the control lever and the sensitivity switching signal. | 09-03-2009 |
20090298362 | BOAT PROPULSION UNIT - A boat propulsion unit minimizes a shock upon switching of an engagement state of a clutch mechanism. The boat propulsion unit includes an upper clutch mechanism that is arranged on an axis of a lower drive shaft and that can be switched between an engagement state (first engagement state) in which driving force of an engine is transmitted to a downstream side, and a half clutch state in which the driving force of the engine is reduced and then is transmitted; and an advance-reverse drive that is disposed on an axis of a front propeller drive shaft and a rear propeller drive shaft and that can be switched between a forward travel engagement state and a reverse travel engagement state (second disengagement state) in which the driving force of the engine is transmitted to a front propeller and a rear propeller in order to propel a boat, and a disengagement state (second disengagement state) in which the driving force of the engine is disengaged. | 12-03-2009 |
20100029150 | Single lever control for combined control of the throttle in a marine engine and of a reversing gear - A single lever control for combined control of the throttle in a marine engine and of a reversing gear includes a rocking lever mounted onto a supporting arm, which is connected to an actuator causing a reversing gear to transmit engine motion to a shaft driving a propeller or the like either in the same direction of rotation as the drive shaft or opposite thereto. The supporting arm is also dynamically connected to position sensors sensing the angular position of the lever and generating a signal uniquely related thereto. The signal is transmitted to a controller of a motorized actuator of the engine throttle. The angular displacement of the lever is transmitted to a transducer converting rotary motion into an electric signal uniquely related thereto via a gear drive having an input gear controlled by the supporting arm and an output gear connected to a transducer control shaft. | 02-04-2010 |
20100068953 | MARINE VESSEL PROPULSION DEVICE AND MARINE VESSEL INCLUDING THE SAME - A marine vessel propulsion device includes an engine arranged to generate a driving force by combustion of a fuel by an ignition unit, a thrust generating unit arranged to be driven by the driving force of the engine to generate thrust underwater, a shift mechanism unit arranged to switch between a transmitting state of transmitting the driving force of the engine to the thrust generating unit and a cut-off state of cutting off the driving force of the engine from the thrust generating unit, a shift drive unit arranged to drive the shift mechanism unit, and a control unit arranged to electrically control the shift drive unit based on a position of a shift operational unit that is arranged to be operated by a user to perform a shifting operation to a first shift position corresponding to the transmitting state, and a second shift position corresponding to the cut-off state. When changing from the first shift position to the second shift position, the control unit temporarily lowers an engine speed by starting misfire control of the ignition unit. After the start of the misfire control, the control unit controls the shift drive unit such that the shift mechanism unit starts the switching from the transmitting state to the cut-off state after a delay time period corresponding to a time from the start of misfire control to a point in time when the ignition unit actually starts to misfire. | 03-18-2010 |
20100099311 | OUTBOARD MOTOR CONTROL APPARATUS - In an apparatus for controlling an outboard motor mounted on a stern of a boat and having an internal combustion engine to power a propeller, a drive shaft that connects the engine and the propeller, a torque converter that is interposed between the engine and the drive shaft and is equipped with a lockup clutch, a water pump connected to the drive shaft to be driven by the drive shaft, and a shift mechanism interposed between the drive shaft and the propeller, comprising a neutral position detector that detects the shift mechanism being set in a neutral position; and a clutch ON unit that makes the lockup clutch ON to increase operation speed of the water pump when it is detected that the shift mechanism is set in the neutral position. With this, it becomes possible to improve cooling performance, thereby preventing a defect such as overheat of the engine. | 04-22-2010 |
20100144221 | PROPULSION DEVICE FOR A MARINE MOTOR - In a propulsion device for a marine motor, a shift rod ( | 06-10-2010 |
20110143609 | OUTBOARD MOTOR CONTROL APPARATUS - In an apparatus for controlling operation of an outboard motor having an internal combustion engine to power a propeller, and a transmission being selectively changeable in gear position to establish speeds including a first speed and a second speed and transmitting power of the engine to the propeller with a gear ratio determined by established speed, engine speed is detected, it is determined whether acceleration is instructed when the second speed is established, and operation of the transmission is controlled to change the gear position from the second speed to the first speed when the acceleration is determined to be instructed, and then change back the gear position from the first speed to the second speed based on the detected engine speed, thereby enabling to control the transmission optimally. | 06-16-2011 |
20110143610 | OUTBOARD MOTOR CONTROL APPARATUS - In an apparatus for controlling operation of an outboard motor having an internal combustion engine to power a propeller, and a transmission being selectively changeable in gear position to establish speeds including a first speed and a second speed and transmitting power of the engine to the propeller with a gear ratio determined by established speed, it is determined whether acceleration is instructed to the engine when the second speed is established and whether a preset condition is met, and operation of the transmission is controlled to change the gear position from the second speed to the first speed when the acceleration is determined to be instructed and the preset condition is met, thereby improving the acceleration performance of immediately after the acceleration is started. | 06-16-2011 |
20110143611 | OUTBOARD MOTOR CONTROL APPARATUS - In an apparatus for controlling operation of an outboard motor having an internal combustion engine to power a propeller and a transmission being selectively changeable in gear position to establish speeds including a first speed and a second speed and transmitting power of the engine to the propeller with a gear ratio determined by established speed, a change amount of throttle opening and a change amount of manifold absolute pressure of the engine are detected, and operation of the transmission is controlled to change the gear position from the second speed to the first speed based on the change amounts of the throttle opening and manifold absolute pressure, thereby enabling to appropriately control the operation of the transmission to suppress the decrease in boat speed even when the resistance of water flow acting on a boat during cruising is increased due to influence of a wave, etc. | 06-16-2011 |
20110143612 | OUTBOARD MOTOR CONTROL APPARATUS - In an apparatus for controlling operation of an outboard motor having an internal combustion engine and a transmission being selectively changeable in gear position to establish speeds including at least a first speed and a second speed and transmitting power of the engine to the propeller with a gear ratio determined by established speed, it is determined whether acceleration is instructed to the engine when the second speed is established and operation of the engine is controlled to increase a fuel amount to be supplied to the engine when detected engine speed is greater than a predetermined speed, thereby improving the performance immediately after acceleration is started. | 06-16-2011 |
20110217888 | OUTBOARD MOTOR CONTROL APPARATUS - In an apparatus for controlling operation of an outboard motor having an engine to power a propeller, a transmission being selectively changeable in gear position to establish speeds including a first speed and second speed and transmitting power of the engine to the propeller with a gear ratio determined by established speed, and a trim angle regulation mechanism regulating a trim angle through trim-up/down operation, the transmission is controlled to change the gear position from the second speed to the first speed when the second speed is selected and a throttle opening change amount is at or above a predetermined value; and the trim angle regulation mechanism is operated to start the trim-up operation based on engine speed. With this, the transmission can be appropriately controlled to suppress the decrease in boat speed caused by change of gear position, thereby mitigating an unnatural feel given to the operator. | 09-08-2011 |
20110294376 | OUTBOARD MOTOR CONTROL APPARATUS - In an apparatus for controlling operation of an outboard motor having an internal combustion engine, a transmission and a low-speed cruise controller controlling a rotational speed of the propeller to make the boat cruise at low speed, the low-speed cruise controller outputs an increase/decrease command of the propeller rotational speed in response to an operator's manipulation, and change the gear position from the second speed to the first speed when the decrease command is outputted under a condition where the gear position is in the second speed and an engine speed is equal to or greater than a predetermined speed. With this, it becomes possible to decrease the propeller rotational speed to the maximum extent, thereby making a boat cruise at very low speed. | 12-01-2011 |
20110294377 | CONTROL DEVICE AND BOAT DRIVE COMPRISING A CONTROL DEVICE - A control device, in particular for a boat drive, which comprises a control drive, a reduction gear system ( | 12-01-2011 |
20120231684 | OUTBOARD MOTOR CONTROL APPARATUS - In an apparatus for controlling operation of an outboard motor that has an internal combustion engine equipped with a plurality of cylinders and is configured to switch a shift position between an in-gear position that enables engine's driving force to be transmitted to a propeller and a neutral position that cuts off transmission of the driving force, it is configured such that a neutral operation detector detects a neutral operation in which the shift position is switched from the in-gear position to the neutral position; a driving force controller conducts driving force decreasing control to decrease the driving force when the neutral operation is detected; and a cylinder number changer detects an engine speed variation range during the driving force decreasing control and, of the plurality of the cylinders, determines and changes the number of the cylinders with which the control is to be conducted based on the variation range. | 09-13-2012 |
20120282828 | MARINE PROPULSION DEVICE - A marine propulsion device includes an engine, a propeller, a drive shaft, an exhaust path, a water intrusion detecting portion and a recording portion. The drive shaft is configured to transmit driving force from the engine to the propeller. The exhaust path allows exhaust air from the engine to pass therethrough. The water intrusion detecting portion is configured to detect a water intrusion potential indicating a possibility of water intrusion into the engine through the exhaust path. The recording portion is configured to record a detection result of the water intrusion detecting portion. | 11-08-2012 |
440087000 | For engine speed | 12 |
20080299847 | MARINE VESSEL RUNNING CONTROLLING APPARATUS, AND MARINE VESSEL INCLUDING THE SAME - A marine vessel running controlling apparatus is applicable to a marine vessel which includes a propulsive force generating unit having an engine with an electric throttle as a drive source for generating a propulsive force to propel a hull of the marine vessel. The marine vessel running controlling apparatus includes an operational unit to be operated by an operator of the marine vessel for controlling the propulsive force, and a control unit arranged to acquire a normal data sample by eliminating an abnormal data sample from actual data acquired during travel of the marine vessel and update control information related to an opening degree of the electric throttle with respect to an operation amount of the operational unit based on the normal data sample. | 12-04-2008 |
20090209152 | WATERCRAFT SPEED CONTROL DEVICE - An automatic speed control system that provides desired watercraft velocity over land. The coupled algorithms correct engine speed and torque using inertia based measurements, GPS, and tachometer measurements, and the corrections are augmented and enhanced by velocity/speed and torque/speed relationships that are dynamically and adaptively programmed with real-time data collected during replicated operations of the watercraft in specified conditions. | 08-20-2009 |
20090209153 | WATERCRAFT SPEED CONTROL DEVICE - An automatic speed control system that provides desired watercraft velocity over land. The coupled algorithms correct engine speed and torque using inertia based measurements, GPS, and tachometer measurements, and the corrections are augmented and enhanced by velocity/speed and torque/speed relationships that are dynamically and adaptively programmed with real-time data collected during replicated operations of the watercraft in specified conditions. | 08-20-2009 |
20090221196 | TORSIONAL CONTROL BOAT THROTTLE SYSTEM - A torsional throttle control system is provided that may include any of a number of features. One feature of the throttle control system is twist-style grip that has an axis with an angle adjustable to a housing. Another feature comprises trim and/or outboard motor control(s) atop the grip. Yet another feature comprises the internal mechanism adapted to effect throttle control. Methods associated with use of the throttle control hardware and systems including a boat are also covered. | 09-03-2009 |
20090247029 | Engine control system for jet-propulsion boat, jet-propulsion boat incorporating same, and method of using same - An engine control system, for controlling an engine of a jet-propulsion boat, includes a cavitation-control-mode determination unit, which starts a cavitation-control mode when an engine speed not faster than 3200 rpm is maintained for a predetermined time period. During a normal sailing operation, ignition timing is set by a first ignition-timing setting unit. Upon detection of a cavitation-control-mode by the cavitation-control-mode determination unit, an engine speed is raised up to a speed not slower than 3200 rpm, which makes an ignition-timing switching unit to select a second ignition-timing setting unit. The second ignition-timing setting unit retards the ignition timing for the normal sailing operation when the engine speed becomes 6500 rpm or faster. In addition to retardation of the ignition timing, a boost pressure control command upper-limit value is switched to a value at a startup operation, which is less than a value at the normal sailing operation. | 10-01-2009 |
20090264032 | OUTBOARD MOTOR - An operating handle of an outboard motor is provided with a rotatable grip and a low-speed mode switch unit. A controller performs control so that when the low-speed mode switch unit is “on,” the ratio at which the target speed varies with the manipulated variable of the grip is reduced in comparison with when the low-speed mode switch unit is “off.” | 10-22-2009 |
20090298363 | Device and Method for Controlling the Engine Speed and the Slip of the Clutch of a Ship's Propulsion System - A control unit and a method for influencing the speed of an engine and the slip of a downstream clutch of a transmission of a ship's propulsion system via an electronic control unit in response to a manual control-signal generator to select the sense of rotation and the driving speed, wherein, as the clutch is engaged to initiate forward or reverse driving, a slip determination unit of the electronic control unit influences the slip of the clutch in response to a ramp function characteristic to reduce the clutch's slip during an engagement period. | 12-03-2009 |
20100105262 | THROTTLE VALVE DRIVE MECHANISM OF OUTBOARD ENGINE UNIT - Pivot arm supported by a base is pivotable about an arm support shaft by being pulled via a throttle cable, and a throttle cam supported by the base via a cam support shaft and having a guide groove that has a guide section of the pivot arm movably therein. The arm support shaft and the cam support shaft are disposed in non-parallel relation to a valve shaft of the throttle valve and at such positions as not to overlap the throttle valve as viewed from a lateral side of the throttle valve drive mechanism. | 04-29-2010 |
20100227516 | MARINE VESSEL - A marine vessel includes a hull, a propulsion device arranged to propel the hull by a driving force of an engine that has a throttle valve arranged to be electrically controlled so as to open and close, an operation lever arranged to be operated by a marine vessel operator to adjust a throttle opening degree of the throttle valve and arranged to hold an operation position, a fine adjustment switch arranged to be operated by the marine vessel operator to increase or decrease the throttle opening degree to finely adjust the throttle opening degree that has been adjusted by the operation lever, and a control unit arranged to adjust the throttle opening degree based on an operation amount of the operation lever and an operation state of the fine adjustment switch. | 09-09-2010 |
20110092114 | ROTARY ENGINE JET BOAT - A boat includes a hull, an inboard rotary engine, and a jet propulsion unit connected to the engine via a direct drive connection. The hull may be a stepped hull with one or more aft steps. A large, low, substantially flat aft fishing/swim deck is disposed above the engine and an exhaust system of the engine. The exhaust system may vent into the step of the stepped hull and include a check valve that discourages water from backflowing into the engine. | 04-21-2011 |
20140295718 | Apparatus and Method for the Control of Engine Throttle for Inboard and Outboard Boat Motors - A ski boat throttle control system incorporating a rotary assembly such as a thumbwheel within the control lever knob which is part of the control lever assembly that is gripped and held by the operator of the boat during use. The incorporation of such a thumbwheel assembly allows the operator to make more controlled adjustment to the speed of the boat when the boat is in normal operational mode and to intuitively make adjustments to the cruise control speed of the boat when in cruise control. | 10-02-2014 |
20160090165 | MARINE PROPULSION DEVICE - A marine propulsion device includes a power source, a steering handle, and an accelerator grip that moves with respect to the steering handle. A movement region of the accelerator grip includes a forward movement rotation region, a reverse movement rotation region and an axis movement region. In the forward movement rotation region, the accelerator grip is operated to rotate so as to obtain a drive force in a forward movement direction. In the reverse movement rotation region the accelerator grip is operated to rotate so as to obtain a drive force in a reverse movement direction. The axis movement region is provided between the forward movement rotation region and the reverse movement rotation region. In the axis movement region, the accelerator grip is moved in the extensional direction of a rotation axis. | 03-31-2016 |