WO2001017849A1 - Procede permettant de commander hydrauliquement un dispositif marin reducteur de vitesse et inverseur dans une manoeuvre arriere de detresse - Google Patents
Procede permettant de commander hydrauliquement un dispositif marin reducteur de vitesse et inverseur dans une manoeuvre arriere de detresse Download PDFInfo
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- WO2001017849A1 WO2001017849A1 PCT/JP2000/006006 JP0006006W WO0117849A1 WO 2001017849 A1 WO2001017849 A1 WO 2001017849A1 JP 0006006 W JP0006006 W JP 0006006W WO 0117849 A1 WO0117849 A1 WO 0117849A1
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- clutch
- pressure
- engine
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- setting
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
- F16D48/066—Control of fluid pressure, e.g. using an accumulator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/22—Use of propulsion power plant or units on vessels the propulsion power units being controlled from exterior of engine room, e.g. from navigation bridge; Arrangements of order telegraphs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
- B63H23/08—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing with provision for reversing drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/30—Transmitting power from propulsion power plant to propulsive elements characterised by use of clutches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/104—Clutch
- F16D2500/10406—Clutch position
- F16D2500/10412—Transmission line of a vehicle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/104—Clutch
- F16D2500/10443—Clutch type
- F16D2500/1045—Friction clutch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/11—Application
- F16D2500/1105—Marine applications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/302—Signal inputs from the actuator
- F16D2500/3024—Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/306—Signal inputs from the engine
- F16D2500/3067—Speed of the engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/31—Signal inputs from the vehicle
- F16D2500/3108—Vehicle speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/31—Signal inputs from the vehicle
- F16D2500/3108—Vehicle speed
- F16D2500/3109—Vehicle acceleration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/316—Other signal inputs not covered by the groups above
- F16D2500/3166—Detection of an elapsed period of time
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/504—Relating the engine
- F16D2500/5048—Stall prevention
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/508—Relating driving conditions
- F16D2500/50875—Driving in reverse
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/70—Details about the implementation of the control system
- F16D2500/702—Look-up tables
- F16D2500/70205—Clutch actuator
- F16D2500/70217—Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/70—Details about the implementation of the control system
- F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
- F16D2500/70402—Actuator parameters
- F16D2500/70406—Pressure
Definitions
- the present invention is directed to a hydraulic control method for a marine deceleration reversing machine during a crash aster operation for switching a clutch in a marine deceleration reversing machine from a forward setting state to a reverse setting state in order to quickly stop a ship traveling forward.
- a hydraulic control method for a marine deceleration reversing machine during a crash aster operation for switching a clutch in a marine deceleration reversing machine from a forward setting state to a reverse setting state in order to quickly stop a ship traveling forward.
- the ship's deceleration reverser clutch is instantaneously switched from the forward setting to the reverse setting to quickly stop the moving ship and, in some cases, switch from forward cruising to reverse cruising.
- Switching (more precisely, it temporarily changes to the neutral state momentarily between the forward setting state and the reverse setting state)
- An operation called crash astern is performed.
- the clutch for reverse drive the reverse drive force is applied to the propeller that is rotating forward to apply braking, but when switching from the neutral state on the way to the reverse setting state, a load is suddenly applied to the engine. There is a danger of once stall.
- a threshold value for avoiding engine stop is set for each of the set engine speeds during the execution of the crash astern, and if the actual engine speed is lower than this threshold value, the reverse is set.
- the clutch which had been switched to the normal state, was returned to the neutral state, and after waiting for the engine speed to rise to some extent, the clutch was switched to the reverse setting state.
- a predetermined threshold value for the engine load is set, the engine load state is detected, and when the clutch is switched to the reverse setting, the engine load may exceed the threshold value and the engine may be stopped. If so, the clutch was returned to the neutral state, and the clutch was returned to the reverse setting after the engine load was released from the overload state.
- the present invention provides a marine deceleration reversing machine for a crash astern operation in which the operating means of a hydraulic clutch mechanism provided in a marine deceleration reversing machine is switched from a forward setting to a reverse setting at a stretch in order to suddenly stop a ship traveling forward.
- the hydraulic clutch control method when it is determined that there is a risk of an engine stalling due to an impact caused by the clutch switching by the operation, the engagement pressure of the reverse drive clutch is set between the minimum value and the maximum value. An appropriate standby clutch pressure is maintained for a while to avoid the engine stalling, and when it is determined that there is no risk of engine stalling, the engagement pressure of the reverse drive clutch is increased. In this way, the clutch is not completely brought into the neutral state while the engine stall is being avoided, but the reverse drive clutch performs 3 ⁇ 4 ⁇ with the standby clutch pressure. The force is applied as braking force, which can reduce the time required to stop the ship.
- the hydraulic drive of the reverse drive clutch is determined.
- the fitting pressure is raised to its maximum value as a target, and in the process, when it is determined that there is a risk of engine stall, the fitting pressure is reduced to the standby clutch pressure.
- a threshold value of the engine speed is set as a determination factor of the state where the engine may be stuck, and the detected engine speed is compared with the threshold value.
- a threshold value of the load on the engine is set, and the detected magnitude of the load on the engine is compared with the threshold value.
- the engine speed and the hull speed are detected. Then, a stepwise braking force may be applied to the propeller, and the load on the engine may be gradually removed.
- the increase in the fitting pressure of the reverse drive clutch based on the determination of the state where there is no possibility of the engine stall may be performed in response to an increase in the engine speed or a reduction in the engine load.
- the hydraulic pressure of the reverse drive clutch is automatically controlled to increase the pressure, eliminating the need for valve switching operation, and fitting the reverse drive clutch with the best pressure increase
- the reverse drive force as a braking force can be effectively applied to the vehicle.
- the present invention also provides a crash astern operation in which the operating means of the hydraulic clutch mechanism provided in the marine deceleration reverser is switched from the forward setting to the reverse setting at a stretch in order to suddenly stop from the forward running, before switching to the reverse setting.
- the initial engagement pressure of the reverse drive clutch is calculated in advance from a certain judgment factor in the ship, and when the vehicle is switched to the reverse setting, the reverse drive clutch is set to the calculated initial engagement pressure.
- the determination for avoiding the engine stall is made earlier than the reverse setting, thereby avoiding a delay in the control.
- the initial fitting pressure calculated by the fitting pressure of the reverse drive clutch is calculated.
- the engine stall can be avoided and the reverse drive force, which is effective as a braking force, can be applied to the propeller to reduce the time required for stopping the ship.
- the above-mentioned judgment factor is determined as the propeller rotation speed when the clutch mechanism is switched from the forward setting to the neutral state by the crash astern operation, so that it is possible to make a determination for avoiding the engine stalling before the reverse setting.
- the calculation of the initial fitting pressure is performed based on a setting map of the initial fitting pressure corresponding to the number of rotations of the propeller detected in the neutral state, and the map is created based on a load characteristic peculiar to the hull. It is. In other words, only by detecting the engine state, such as the engine load and the number of revolutions, it is possible to judge the difference in the amount of decrease in the number of revolutions of the engine when the reverse drive clutch is engaged due to the different hull load characteristics of each ship. As a result, there is a possibility that a deviation may occur between the calculated initial fitting pressure and the actual appropriate value for each ship. According to the present invention, by creating the map based on the load characteristics specific to the hull, Can be realized.
- the initial fitting pressure is increased to a maximum value in accordance with the increase in the engine speed, and the hydraulic pressure of the reverse drive clutch is automatically increased in this manner.
- the valve switching operation can be eliminated, and the reverse drive clutch can be fitted with the best boost pattern to effectively apply the reverse drive force as a braking force to the propeller.
- the estimated load characteristics specific to the hull are determined by using the reverse drive clutch. The correction is made according to the actual amount of decrease in the engine speed when the initial fitting pressure is set, and the map is corrected accordingly.
- the correction of the load characteristic inherent in the hull is repeated until the amount of decrease in the actual engine speed when the reverse drive clutch is set to the initial engagement pressure converges to a target range, thereby providing more accurate High-quality maps to achieve effective crash asterns.
- FIG. 1 is a hydraulic circuit diagram of a marine reduction reversing machine suitable for crash astern control according to the present invention.
- FIG. 2 is a block diagram and a configuration diagram showing a crash astern control structure according to the present invention.
- FIG. 3 shows the engine speed and crankshaft during a conventional crash astern operation.
- FIG. 4 is a time chart of the engine speed and the clutch oil pressure at the time of the crash astern operation when the engine speed detection is used.
- FIG. 5 is a flowchart of clutch hydraulic pressure control at the time of a crush dust operation based on the engine speed detection according to the present invention.
- FIG. 6 is a time chart of the clutch lever signal value, the engine load, and the clutch oil pressure during the crash astern operation when the engine load is detected.
- FIG. 7 is a flowchart of clutch hydraulic pressure control at the time of a crash start operation based on engine load detection according to the present invention.
- FIG. 8 is a time chart of the clutch lever signal value, the hull speed, and the clutch oil pressure at the time of operating the crash swirl when the engine speed and the hull speed are detected.
- FIG. 9 is a time chart of the clutch hydraulic pressure when the standby clutch pressure is fluctuated up and down.
- FIG. 10 is a flowchart of clutch hydraulic pressure control at the time of a crash astern operation based on the detection of the engine speed and the hull speed according to the present invention.
- FIG. 11 is a time chart of the clutch lever signal value, the engine speed, and the hull load (hull speed) for explaining when to judge the standby clutch or the initial engagement pressure for avoiding engine stall.
- FIG. 12 is a setting map of the initial fitting pressure with respect to the propeller speed at the time of transition to neutral in the crash astern operation created based on the characteristics of the hull load.
- FIG. 13 is a control block diagram for performing clutch hydraulic pressure control by setting an initial fitting pressure based on a hull load.
- FIG. 14 shows a crash astern operation according to the present invention, in which the initial engagement pressure is set based on the detected propeller rotation speed and the reverse clutch pressure is controlled using a map based on the hull load before the reverse setting.
- 6 is a flowchart of clutch pressure control of FIG.
- FIG. 15 is a time chart of the engine speed and the reverse clutch pressure during the neutral setting and the reverse setting during the crash astern.
- FIG. 16 is a graph of engine speed over time showing the amount of decrease in engine speed.
- FIG. 17 is a view showing the progress of the value for each correction operation of the engine speed drop and the initial fitting pressure for converging the engine speed drop in the target range.
- FIG. 18 is a flowchart showing a mode in which a map correction flow based on the correction of the hull load by reading the drop amount of the engine speed is added to the control flow of FIG. Best mode for implementing
- the clutch mechanism 100 is configured by installing a forward drive clutch (forward clutch 100) and a reverse drive clutch (reverse clutch) 90 in parallel.
- the forward clutch 10 and the reverse clutch 90 are both clutches that are brought into a connected state by supplying hydraulic oil, and are provided with a forward / reverse switching valve 2 (the external appearance is shown in FIG. 2).
- the clutch mechanism 100 By switching the position of the forward / reverse switching valve 2 by operating the clutch lever 2a of the first clutch and switching the supply destination of the hydraulic oil, the clutch mechanism 100 is connected with the forward clutch 10 and the reverse clutch 9 0 In the forward setting state in which the reverse clutch 90 is connected and the forward clutch 10 is separated in the forward setting state, and in the neutral state in which both clutches 10-90 are separated without supplying hydraulic pressure. It is possible to switch between the three states.
- Each clutch is a wet-type multi-plate clutch in which steel plates 12 and friction plates 13 are alternately arranged.
- the hydraulic piston 11 is operated by the pressure oil supplied from the forward / reverse switching valve 2. Then, each steel plate 12 is pressed against each friction plate 13.
- the hydraulic piston 11 returns to the initial position by force, and the steel plates 12 are separated from the friction plates 13 respectively. All the friction plates 13 in each clutch 10 ⁇ 90 are connected to the inner gear (pinion gear) 15, and the steel plate 12 is the outer gear 14, which rotates with the engine power regardless of whether the clutch is connected or disconnected.
- the clutch is joined, that is, the steel plate 12 and the friction plate 13 are pressed together. Then, rotate the large gear 16 that is combined with the inner gear 15.
- the large gear 16 is fixed to the output shaft 17 of the marine deceleration / reversing machine 1, and as shown in FIG. It is connected to the input end of a propeller shaft 6 having a propeller 7.
- the rotation of the large gear 16 is transmitted to the propeller 7. That is, the power of the engine 8 shown in FIG. 2 is transmitted to the propeller 7 via either the forward clutch 10 or the reverse clutch 90 in the clutch mechanism 100.
- the forward clutch 10 and the reverse clutch 90 each have the pressing force of the hydraulic piston 11
- the friction plate 13 By adjusting (clutch oil pressure), the friction plate 13 can be slipped with respect to the steel plate 12 to be in a half-clutch state.
- the clutch hydraulic pressure is controlled by an electronic trolling device 20 having a direct-coupled solenoid valve 3, a proportional solenoid valve 4, and a low-speed valve 5.
- the oil discharged from the oil pump 22 is supplied to the electronic trolling device 20 after the oil pressure is adjusted via the clutch oil pressure adjusting valve 24. Excess pressure oil is supplied as lubricating oil from the clutch hydraulic pressure adjusting valve 24 to the clutches 10 and 90 via the oil cooler 26 and the lubricating hydraulic pressure adjusting valve 27.
- the position of the clutch hydraulic pressure adjusting valve 24 is controlled by the hydraulic control of the loose fitting valve 25 so that the specified valve opening pressure is adjusted.
- the loose fitting valve 25 is hydraulically connected to the forward / reverse switching valve 2, and returns to the initial position when the forward / backward switching valve 2 is in the neutral position, and neutralizes the valve opening regulation pressure of the clutch hydraulic pressure adjusting valve 24.
- part of the oil delivered from the forward / backward switching valve 2 is gradually sent to the loose fitting valve 25, and the forward / backward movement is performed.
- Gradually increase the specified valve opening pressure of switching valve 2 and eventually increase it to the specified valve opening pressure during normal forward and backward cruising.
- reference numeral 21 denotes a strainer
- reference numeral 23 denotes a safety valve for returning the oil discharged from the oil pump 22 to the strainer 21 in an emergency.
- the engine 8 is provided with an engine speed sensor 31 for detecting its actual rotation speed, and a rack position sensor 32 for detecting the position of a control rack of a governor attached to the engine 8. ing. Further, a black smoke sensor 33 for detecting the amount of black smoke in the exhaust gas is provided at the exhaust pipe of the engine 8. Rack position signal detected by the black position sensor 32, a signal indicating the amount of black smoke detected by the black smoke sensor 33, and a load indicating the magnitude of the load on the engine 8 calculated based on these sensors and the like. The signal is input to the engine condition analysis circuit 41. The threshold of each signal is set in the engine state analysis circuit 41, and when each detection signal value exceeds the threshold, the detection signal is transmitted from the engine state analysis circuit 41 to the main controller 42.
- the transmission means includes, for example, wireless data communication.
- the main controller 42 performs various controls based on detection signals regarding various engine states transmitted from the engine state analysis circuit 41. As one of them, a control signal based on the detection signal of the engine state analysis circuit 41 is transmitted to the trolling controller 43.
- the controller 43 for the toro ring has a set propeller speed signal S5 representing the set value of the propeller speed by the toro ring dial 9, and a clutch signal sensor 3 (4) Position detection signal of clutch lever —2a of forward / reverse selector valve (2) (clutch lever position signal) LS, Propeller speed sensor attached to output shaft 17 3 Output speed detected by 5 (Propeller speed PN ) Signal Power input.
- the trolling controller 43 sends a trolling 0 N ⁇ 0 FF signal to the direct connection solenoid valve 3 (the trolling 0 FF signal is for setting the direct connection solenoid valve 3 to the above-described direct connection setting position).
- the to ring ON signal is a signal that sets the direct-coupled solenoid valve 3 to a position on the opposite side of the direct-coupled set position so that the clutch hydraulic pressure can be adjusted by the proportional solenoid valve 4.)
- the duty value for determining the valve opening is output to the proportional solenoid valve 4.
- the crash astern control of the present invention is performed when the clutch hydraulic pressure of the reverse clutch 90, which can be variously set by the direct-coupled solenoid valve 3 or the proportional solenoid valve 4, is switched to the reverse position by the clutch lever 2a.
- the clutch mechanism 100 can quickly come out of the neutral state without any stalling, and can run in reverse.
- the clutch lever position signal value LS changes from the signal value F indicating the state where the clutch lever 2a is in the forward position to the state where the clutch lever 2a is in the forward position by the crash astern operation with the passage of time t.
- the signal is switched to the signal value R indicating the reverse position through the signal value N indicated.
- the clutch hydraulic pressure Pr of the reverse clutch 90 is the lowest value when the forward setting is set and when the neutral position is set (similarly, it is set to 0 for convenience), and once the clutch lever 2a switches to the reverse position, Although the clutch is engaged at the maximum value Pm, there are some conditions that may cause the engine to stall, that is, the engine speed is below the threshold, the engine is overloaded, or the forward speed has not yet dropped sufficiently.
- the clutch hydraulic pressure Pr is reduced to the standby clutch hydraulic pressure (standby clutch hydraulic pressure) Pw.
- the clutch oil pressure Pr of the reverse clutch 90 during standby is set to 0 (that is, neutral state). In this state, no external force other than water resistance acts on the hull. Therefore, the hull (propeller 7) does not have enough braking force and it takes time to stop.
- the clutch lever 2a is returned to the neutral position N at a time, and the engine speed is increased to some extent, and when the engine load is reduced to some extent, the clutch lever 2a is moved to the reverse position. Manual operation to switch to R was necessary, which was complicated.
- the requirement for determining whether to reduce the clutch hydraulic pressure Pr to the value for standby is the actual engine speed E N, but the requirement also applies to the engine load.
- the engine stall can be avoided by setting the standby clutch pressure P w to a value higher than 0 as long as the engine stall can be avoided. In other words, as a result, it is possible to shorten the time required to stop the ship.
- Fig. 4 shows the transition of the engine speed and clutch pressure when performing clutch hydraulic pressure Pr control during crash astern based on the detection of the engine speed
- Fig. 5 is a flowchart of the control.
- a map of the set value of the standby clutch hydraulic pressure Pw at the reverse clutch pressure Pr based on the detected engine speed E N is stored.
- the detected value of the engine speed sensor 31 is input to the engine state analyzing circuit 41, and if the detected value EN is smaller than the threshold value EN s, the clutch is transmitted to the main controller 42 based on the map.
- the hydraulic pressure Pr is used as the standby clutch pressure Pw, the force, the power, and the set value of the standby clutch pressure Pw based on the map are transmitted.
- the trolling controller 43 is sent from the main controller 42.
- the switching signal of the direct-coupled solenoid valve 3 and the duty value of the solenoid valve 4 are output via this.
- step 101 while the clutch lever 2a is in the forward position (step 101), that is, while the forward clutch 10 is engaged, the engine speed is determined based on the set engine speed. Then, the threshold value EN s of the engine speed for avoiding the engine stop is determined.
- Step 102 when the clutch lever 2a at the forward position F is switched to the reverse position R (Step 102), the clutch hydraulic pressure Pr is increased to the maximum value Pm to engage the reverse clutch 90. (Step 103).
- step 104 If the actual engine speed EN (detected by the engine speed sensor 31), which is reduced by the engagement of the clutch, does not reach the threshold EN s for avoiding the engine stop (step 104), the reverse clutch is left as it is. Raise hydraulic pressure Pr to maximum value Pm. If the detected engine speed EN drops below the threshold value EN s (step 105), a signal indicating the state is transmitted from the engine state detection circuit 41 to the main controller 42, at which point the main controller A control signal is sent from 4 2 to the solenoid valve 4 via the trolling controller 4 3, the clutch hydraulic pressure Pr is reduced to the standby clutch pressure P w (step 106), and the engine speed EN is waited for to increase. .
- the reverse clutch oil pressure Pr is the standby clutch pressure P s, the clutch hydraulic pressure Pr is again raised to the maximum value Pm (step 108). If the engine speed EN decreases due to the increase in the oil pressure, and if EN ENs again, the reverse clutch pressure Pr is reduced again to the standby clutch pressure Pw, and the engine speed is waited for.
- the standby clutch pressure Pw may be set to be constant, or may be set according to the engine speed EN detected by the engine speed sensor 31. That is, if the engine speed EN is large, the standby clutch pressure Pw is set to a higher value, and the clutch oil pressure Pr is maximized when the engine speed EN rises sufficiently after that, exceeding Es. With the value Pm, the waiting time until the reverse clutch 90 is formally engaged is shortened, and there is no shock when the clutch is engaged. When the engine speed EN is small, the standby clutch pressure Pw is set low, and the load applied to the engine from the reverse clutch 90 during standby is reduced as much as possible to further reduce the engine speed. Avoid and prevent stalling.
- the reverse clutch pressure Pr which has once been reduced to the standby clutch pressure Pw
- the reverse clutch pressure Pr is gradually increased in accordance with the increasing value of the engine speed EN. Is also good.
- the optimum pressure increase pattern is automatically performed without manual valve switching.
- the above-described correlation map between the engine speed EN and the standby clutch pressure Pw may be used to apply the value of the standby clutch pressure Pw corresponding to the increasing engine speed EN to the reverse clutch pressure Pr. .
- the determination factor of the standby clutch pressure Pw may be the engine load EL detected by the rack position sensor 32 or the black smoke sensor 33 instead of the engine speed EN. That is, in the engine state analysis circuit 41 described above, the load threshold EL s (if it exceeds this, The set value of the standby clutch pressure Pw corresponding to the signal value of the engine load detected by the sensor 32, 33, or the like is stored. In this case as well, the standby clutch pressure Pw may be set according to the magnitude of the engine load exceeding the load threshold EL s, and the higher the engine load, the smaller the set value of the standby clutch pressure Pw. However, the transmission rate of the load from the propeller 7 side to the engine side can be reduced.
- Fig. 6 shows changes in engine load and clutch pressure in clutch oil pressure control during crash astern based on engine load detection
- Fig. 7 is a control flowchart.
- the reverse clutch Pr is started to the maximum value Pm (step 203), and the engine load EL is reduced by the shock at the time of the engagement. If it is determined that the engine has become overloaded because the load threshold value EL s has been exceeded (step 205), a command to reduce the clutch pressure Pr of the reverse clutch 90 to the standby clutch pressure Pw is output to the main clutch 42.
- the switching signal of the direct-coupled solenoid valve 3 and the duty value of the solenoid valve 4 are output from the main controller 42 via the trolling controller 43, and the clutch pressure Pr of the reverse clutch 90 is set to the standby clutch pressure Pw ( In step 206), the standby clutch pressure Pw is held until the detected engine load EL decreases to a certain reference value ELt (step 207). If the detected engine load EL falls below the EL force reference value ELt, the reverse clutch pressure Pr is raised to the maximum value Pm (step 208).
- the reverse clutch pressure Pr is engaged with the maximum value Pm (step 203), and if the engine load EL exceeds the load threshold EL s, the reverse clutch pressure Pr is re-engaged.
- the standby clutch pressure Pw is reduced to Pw (step 205), and if not exceeded, the pressure is increased to the maximum value Pm (step 204).
- the holding time of the standby clutch pressure Pw may be controlled by a timer without using the engine load reference value ELt. Conceivable.
- the reverse clutch pressure P r in the control of the reverse clutch pressure Pr based on the engine load, when the reverse clutch pressure Pr once reduced to the standby clutch pressure P w is increased to the maximum pressure P m, the reverse clutch pressure P r according to the low engine load EL Automatically without the need for switching valves.
- the standby clutch pressure P w is changed according to the engine load EL as described above, a correlation map between the engine load EL and the standby clutch pressure P w is used to correspond to the rising engine load EL.
- the value of the standby clutch pressure Pw may be applied to the reverse clutch pressure Pr.
- FIG. 8 shows the transition of the clutch oil pressure at the time of the crash astern based on the correlation value between the engine speed E N and the hull speed V.
- the forward hull speed V f is large, engine stall becomes difficult if the engine speed E N is large.
- the engine speed EN threshold value EN s can be reduced, and the reverse clutch pressure Pr is set to the standby clutch pressure P It is not necessary to lower it to w, that is, it is more likely to fit the maximum value P m.
- the engine state analysis circuit 41 stores a function map for obtaining a threshold value EN s of the engine speed EN using the hull speed V (forward hull speed V f) as a factor, and stores the function map in this function map. Based on this, it is determined whether the reverse clutch pressure Pr should be increased to the maximum value Pm or the standby clutch pressure Pw should be reduced when the reverse is set. Further, a map for setting the optimum standby clutch pressure P w according to each threshold value E N s may be stored.
- the controller 50 previously stores a setting map of the standby clutch pressure Pw based on the engine speed EN and the forward hull speed Vf (step 301), and stores the map of the clutch lever 2a.
- the engine speed EN From the reading of the hull speed V (forward hull speed Vf) and the map described above, the engine speed threshold value EN s is obtained, and the standby clutch Pw is calculated (step 304).
- the engagement pressure Pr of the clutch 90 is set to the standby clutch pressure Pw (step 300), and after the hull speed V becomes 0 (step 300), the reverse clutch 9 is applied regardless of the threshold value EN s. 0 inset
- the P r is raising the maximum value P m (Step 3 0 7).
- the reverse clutch 90 is always operated even if the fitting pressure is small.
- the propeller 7 is in a state of being retracted, and a slight reverse drive force is applied to the propeller 7 even during standby to avoid the engine. It is possible to shorten the time required to stop the ship by applying load and braking.
- the initial engagement pressure of the reverse clutch pressure Pr is set in advance based on a certain judgment factor at the time of forward cruising.
- the clutch operating means is set to the reverse setting position, and the reverse clutch pressure Pr is first set to the initial engagement pressure. That is, when the clutch lever detection value LS shown in FIG. 11 shifts from the forward value F to the neutral value N, t! Is the detection time of the judgment element for controlling the reverse clutch pressure Pr, and as soon as the clutch lever 2a switches to the reverse position, the reverse clutch pressure Pr is calculated based on the detection of the initial engagement pressure. Be Po.
- the load applied to the hull due to water resistance or engine driving at a certain hull speed is used as an element for predicting the initial engagement pressure of the reverse clutch pressure Pr.
- Characteristics (Hull load) SL is used.
- the hull load S L is calculated as a value proportional to the hull speed V, where V is the hull speed and K is a hull-specific constant.
- the hull-specific constant K is determined in consideration of the propeller shape, hull shape and weight, engine torque, etc., which are characteristics of the hull. If this hull load SL is obtained, a drop in the engine speed E N when the reverse clutch 90 is engaged from the neutral state can be roughly predicted.
- the amount of decrease in the engine speed EN when the reverse clutch 90 is engaged by the crash astern operation is determined. Is the hull load SL.
- This hull load SL is proportional to the hull speed V (V f) as described above,
- V f the hull load SL when the reverse clutch is engaged is calculated from the neutral state in proportion to the neutral propeller speed PN between the forward setting and the reverse setting.
- the number of rotations EN can be predicted.
- the initial engagement pressure Po of the reverse clutch pressure Pr can be determined so that the engine speed EN, which is reduced by the engagement of the clutch, does not decrease to an engine danger zone. Therefore, in the clutch mechanism 100, when the forward clutch 10 shifts from the engaged state to the neutral state, if the propeller rotation speed PN in the neutral state is detected, the optimum value of the reverse clutch pressure Pr is determined accordingly. Can be calculated. Therefore, as shown in Fig.
- a correlation map between the propeller rotation speed PN during the neutral operation during the crash astern operation and the initial engagement pressure Po of the reverse clutch pressure Pr is obtained for each ship. It is created according to the characteristic of the unique hull load SL, and is stored in the control controller 50 of the clutch mechanism 100 shown in FIG.
- the initial engagement pressure Po is set so that the engine speed E N that decreases due to the initial engagement of the reverse clutch 90 does not decrease to the danger of engine stall.
- the higher the propeller speed PN the greater the drop in the engine speed EN.Therefore, reduce the initial engagement pressure P o to reduce the load applied from the propeller side to the engine side when the reverse clutch 90 is initially engaged. I try to reduce it.
- the initial fitting pressure Po is set to the maximum value Pm of the reverse clutch Pr.
- the smaller the propeller speed PN the lower the hull speed Vf.Therefore, there is no need to apply a large amount of reverse driving force, which is the propeller braking force.Therefore, the initial fitting pressure Po is reduced. You can do it.
- FIG. 13 shows a simple block diagram for performing the present hydraulic control.
- the clutch control controller 50 is equipped with an engine speed sensor 31 attached to the engine 8, a clutch lever position sensor 34 attached to the deceleration reverser 1, and a propeller shaft 6.
- a detection signal is input from the propeller speed sensor 35, and an output signal is sent from the controller 50 to the direct-coupled solenoid valve 3 and the proportional solenoid valve 4 of the speed reduction / reversing machine 1, and the forward clutch pressure P f And the reverse clutch pressure Pr is controlled.
- 4 shows the relationship between the engine speed EN and the reverse clutch pressure Pr before switching from the state to the reverse drive state. First, it is assumed that the reverse clutch pressure Pr at the time of neutral is substantially zero as described above.
- the initial engagement pressure P o of the reverse clutch 90 corresponding to the propeller speed PN which is the value detected by the propeller speed sensor 34, Is determined.
- an output control signal is output from the controller 50 to the direct-coupled solenoid valve 3 and the proportional solenoid valve 4, and the reverse clutch 90 is required until the position of the clutch lever 2a moves from the neutral position N to the reverse position R.
- the clutch lever 2a When the clutch lever 2a reaches the reverse setting R, the engine speed E N decreases and then increases by the initial engagement of the reverse clutch 90.
- the reverse clutch 90 force immediately reaches the initially set initial engagement pressure Po. Due to this fitting pressure, the engine speed EN temporarily decreases, but since the reverse clutch Pr has the initial fitting pressure P 0 calculated in advance based on the map based on the hull load SL described above, there is no control delay, and the engine The rotation speed EN falls within the range L, where there is a risk of engine stalling.
- the rotational speed is increased in accordance with the increase in the rotational speed (step 407), and the rotational speed is raised to the maximum value Pm, the reverse clutch 90 is smoothly engaged, and the reverse drive force is applied to the propeller 7 to effectively brake.
- FIG. 15 is a time chart of the engine speed EN and the reverse clutch pressure Pr through the neutral state of the clutch mechanism 100 and the reverse setting state during the crash astern operation.
- the reverse clutch pressure Pr is raised to the initial engagement pressure P 0 before the clutch lever detection value LS switches from the neutral value N to the reverse value R, and is temporarily increased after the clutch lever detection value LS switches to the reverse value R. It remains as Po.
- the engine speed EN decreases as soon as the clutch lever 2a is switched to the reverse position R and the reverse clutch 90 is fitted with the initial fitting pressure Po, but is fitted with the initial fitting pressure Po.
- the reverse driving force applied to the propeller 7 via the reverse clutch 90 does not apply a load that would cause the engine 8 to stall. Therefore, the engine speed EN eventually increases, but the reverse clutch pressure Pr is increased so as to follow this rising pattern, so that the reverse driving force is effectively applied to the propeller ⁇ as a braking force. It is.
- the estimated hull load SL may deviate from the actual value.
- the clutch mechanism 100 is switched to the reverse setting, the number of engine openings The number of opening of the engine EN It is conceivable to make it possible to correct the map of the initial insertion pressure Po for the PN.
- the engine speed EN drops.
- the drop ⁇ ⁇ ⁇ ⁇ changes according to the magnitude of the hull load SL. Therefore, based on this drop amount ⁇ ⁇ ⁇ , the hull load SL is corrected, and based on this, the map of the initial insertion pressure Po against the propeller speed PN is corrected, and as a result, the initial insertion pressure Po can be corrected to an appropriate value.
- the corrected initial fitting pressure Po calculated from the corrected hull load SL is obtained, for example, as follows.
- ⁇ is the actual drop in engine speed
- ⁇ is the drop in engine speed ⁇ ⁇ used to estimate the hull load SL before correction
- ⁇ ! Is the hull load SL before correction.
- the initial insertion pressure P o is calculated based on the difference between the estimated amount of decrease in engine speed and the actual value. Even if the reverse clutch pressure Pr is higher or lower than the appropriate pressure, the estimated initial engagement pressure Po, is immediately corrected to the appropriate Po, and the braking force is effectively applied while avoiding the engine.
- the reverse clutch 90 can be engaged so that it can be engaged.
- This correction of the hull load SL by reading the drop amount EN of the engine speed may be repeated until it converges to a certain target range. That is, the drop amount ⁇ of the engine speed EN decreases as the initial engagement pressure Po of the reverse clutch 90 decreases, and increases as the initial engagement pressure Po increases. This is because the higher the initial engagement pressure Po, the higher the load on the engine due to the engagement of the clutch. Therefore, as shown in FIG. 17, a drop amount of the engine speed at which the initial engagement pressure Po of the reverse clutch 90 becomes an appropriate value is set in advance as a constant target drop amount range ⁇ r. The aforementioned correction of the hull load SL is repeated so that the engine speed drop ⁇ EN converges within the target drop range ⁇ ENr. By changing the setting map of the insertion pressure, the initial insertion pressure P0 is adjusted to an appropriate value.
- the initial fitting pressure P 0 is reduced at the next correction, and the engine speed is reduced. If the drop amount ⁇ is smaller than the lower limit of the target range ⁇ r, the initial fitting pressure Po is adjusted to increase at the next correction. You.
- the horizontal axis n in FIG. 17 indicates the correction frequency.
- the number of corrections n may be set in advance.
- the hull load SL changes due to aging of the hull and the propeller 7, etc., and again falls outside the range ⁇ ENr.
- the hull load SL is corrected again, and the initial insertion pressure Po is adjusted so that the engine speed drop ⁇ converges within the range ⁇ r.
- the flowchart of FIG. 18 is obtained by adding a process of correcting the initial fitting pressure P 0 (step 408) by correcting the map in reading the drop amount ⁇ to the flow diagram of FIG. The correction is repeated until EN converges on the target range ⁇ r (steps 409-410). Availability of m ⁇
- the present invention provides an effective hydraulic clutch control method when performing a crash astern operation on a ship equipped with a marine deceleration reverser having a hydraulic forward clutch and a reverse clutch. is there.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Transmission Device (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00956921A EP1209073B1 (en) | 1999-09-02 | 2000-09-04 | Method of hydraulically controlling a marine speed reducing and reversing machine in crash astern operation |
US10/070,636 US6679740B1 (en) | 1999-09-02 | 2000-09-04 | Method of hydraulically controlling a marine speed reducing and reversing machine in crash astern operation |
DE60042240T DE60042240D1 (de) | 1999-09-02 | 2000-09-04 | Hydraulisches steuerverfahren für eine marine vorrichtung zur drehzahluntersetzung und drehzahlumkehr im not-rückwärtsbetrieb |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24859999A JP3960719B2 (ja) | 1999-09-02 | 1999-09-02 | 舶用減速逆転機のクラッシュアスターン制御方法 |
JP11/248599 | 1999-09-02 | ||
JP2000075217A JP2001260988A (ja) | 2000-03-17 | 2000-03-17 | 舶用減速逆転機のクラッシュアスターン制御方法 |
JP2000/75217 | 2000-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001017849A1 true WO2001017849A1 (fr) | 2001-03-15 |
Family
ID=26538855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/006006 WO2001017849A1 (fr) | 1999-09-02 | 2000-09-04 | Procede permettant de commander hydrauliquement un dispositif marin reducteur de vitesse et inverseur dans une manoeuvre arriere de detresse |
Country Status (4)
Country | Link |
---|---|
US (1) | US6679740B1 (ja) |
EP (1) | EP1209073B1 (ja) |
DE (1) | DE60042240D1 (ja) |
WO (1) | WO2001017849A1 (ja) |
Cited By (1)
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CN112324817A (zh) * | 2020-11-02 | 2021-02-05 | 北京信息科技大学 | 湿式离合器过载保护与活塞行程自适应控制系统及方法 |
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JP3833616B2 (ja) * | 2003-01-10 | 2006-10-18 | 三菱電機株式会社 | 電子制御駆動装置 |
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KR100804636B1 (ko) * | 2004-07-12 | 2008-02-20 | 얀마 가부시키가이샤 | 크러시 후진시 연료분사 제어방법 |
US7364483B2 (en) * | 2004-10-06 | 2008-04-29 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Marine reversing gear assembly |
GB2430989A (en) * | 2005-10-05 | 2007-04-11 | Bamford Excavators Ltd | Method of smoothly changing gear by using reverse clutch to retard input gearing |
JP5128144B2 (ja) * | 2007-02-19 | 2013-01-23 | ヤマハ発動機株式会社 | 船舶推進機及び船舶 |
JP4979556B2 (ja) * | 2007-12-04 | 2012-07-18 | ヤンマー株式会社 | 舶用減速逆転機の油圧制御装置 |
JP2009243590A (ja) * | 2008-03-31 | 2009-10-22 | Yamaha Motor Co Ltd | 船舶推進装置 |
JP2010064664A (ja) * | 2008-09-12 | 2010-03-25 | Yamaha Motor Co Ltd | 舶用推進機 |
US8845490B2 (en) | 2010-02-10 | 2014-09-30 | Marine Canada Acquisition Inc. | Method and system for delaying shift and throttle commands based on engine speed in a marine vessel |
US8182396B2 (en) * | 2010-02-10 | 2012-05-22 | Marine Canada Acquisition In.c | Method and system for delaying shift and throttle commands based on engine speed in a marine vessel |
US8439800B1 (en) * | 2010-11-30 | 2013-05-14 | Brunswick Corporation | Marine drive shift control system |
FR3017914A1 (fr) * | 2014-02-25 | 2015-08-28 | Peugeot Citroen Automobiles Sa | Systeme de controle d'une commande hydraulique d'embrayage d'un vehicule automobile |
EP3823894A1 (en) * | 2018-07-19 | 2021-05-26 | ZF Friedrichshafen AG | Method to operate a marine propulsion system in a trolling mode, control unit and marine propulsion system |
DE102021106860A1 (de) * | 2021-03-19 | 2022-10-06 | REINTJES Gesellschaft mit beschränkter Haftung. | Schiffsgetriebe |
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Cited By (2)
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---|---|---|---|---|
CN112324817A (zh) * | 2020-11-02 | 2021-02-05 | 北京信息科技大学 | 湿式离合器过载保护与活塞行程自适应控制系统及方法 |
CN112324817B (zh) * | 2020-11-02 | 2022-05-17 | 北京信息科技大学 | 湿式离合器过载保护与活塞行程自适应控制系统及方法 |
Also Published As
Publication number | Publication date |
---|---|
US6679740B1 (en) | 2004-01-20 |
EP1209073A4 (en) | 2007-05-09 |
DE60042240D1 (de) | 2009-07-02 |
EP1209073B1 (en) | 2009-05-20 |
EP1209073A1 (en) | 2002-05-29 |
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