EP3847093A1 - Drive system for a watercraft that can be moved by muscle power, and method for controlling a drive system - Google Patents
Drive system for a watercraft that can be moved by muscle power, and method for controlling a drive systemInfo
- Publication number
- EP3847093A1 EP3847093A1 EP19769377.3A EP19769377A EP3847093A1 EP 3847093 A1 EP3847093 A1 EP 3847093A1 EP 19769377 A EP19769377 A EP 19769377A EP 3847093 A1 EP3847093 A1 EP 3847093A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive
- unit
- watercraft
- acceleration
- propulsion means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H16/00—Marine propulsion by muscle power
- B63H16/04—Oars; Sculls; Paddles; Poles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/10—Motor-propelled water sports boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
- B63B34/20—Canoes, kayaks or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/18—Improving safety of vessels, e.g. damage control, not otherwise provided for preventing collision or grounding; reducing collision damage
Definitions
- Propulsion system for a watercraft that can be moved with muscle power and method for controlling a
- the invention relates to a drive system for driving support of a watercraft, in particular water sports equipment, which can be moved with a paddle, belt, pack or skull.
- the invention further relates to a method for controlling a drive system for a watercraft that can be moved with muscle power.
- Paddles, straps, packs or skulls serve as a means of propulsion to move a watercraft using muscle power.
- a belt or skull usually consists of a shaft and a rudder blade, which is guided through the water for the movement of the watercraft.
- Paddles can be designed as a single paddle with one paddle blade or as a double paddle with two paddle blades.
- paddles without a counter bearing on a watercraft are guided freely with the arms.
- a pack is a means of propulsion with which a watercraft can be propelled off the bottom of a body of water.
- Electric auxiliary drives are already known, which can be fastened, for example, to the float of a watercraft and can be controlled with a remote control at the push of a button or conventionally by means of a rotary handle.
- the operation of the drive via a remote control requires additional interaction with a free fland or a free foot of a user and forces the user to put the propulsion device out of the fland, which is particularly the case with narrow and tip-prone watercraft, such as stationary vehicles. Up-paddling equipment or paddle boats, is disadvantageous because the propulsion is required to maintain balance.
- the object is achieved with a drive system according to the invention for driving support of a watercraft that can be moved with muscle power.
- the drive system has a drive unit designed to drive a watercraft, which can be fastened to a watercraft.
- the drive unit is a motor-assisted drive unit, which can have an electric motor or an internal combustion engine, an electric motor being preferred.
- the drive unit can be designed as a propeller drive or as a jet drive.
- an energy source which, in the case of a drive unit with an electric motor, provides electrical energy to the drive unit.
- the energy source is designed such that it can be arranged in a space-saving manner on or in the watercraft.
- the drive system according to the invention has a sensor unit which has at least one acceleration detection device for detecting an acceleration of a propulsion means which can be moved with muscle force and / or at least one pressure force detection device for detecting an Compressive force on the propulsion means movable with muscle power.
- Another component of the drive system according to the invention is a control unit for controlling a drive power of the drive unit, the control unit being set up to receive signals from the sensor unit and the drive power of the drive unit depending on the detected acceleration of the propulsion means and / or the detected pressure force on the propulsion means is controllable.
- the propulsion means can be a paddle, strap or skull, which is guided through the water by a user to move the watercraft by means of muscle power, the user accelerating the propulsion means, exerting a pressure force on the propulsion means and changing the acceleration of the Induces propulsive.
- control commands for controlling the drive power of the drive unit are derived from a movement of the propulsion means, in which an acceleration or a pressure force, which is caused and recorded by a user when the propulsion means is moved, the detected values of an acceleration or a Compressive force can be used to control the drive power and drive direction.
- the user advantageously does not need any additional control elements for controlling the drive power, since one movement of the propulsion means is sufficient to control propulsion support of the watercraft with the aid of the drive unit.
- the sensor unit is set up to detect a change in an acceleration or a pressure force, the control unit being set up to adapt the drive power of the drive unit directly to a change in the acceleration of the propulsion means and / or the action of the pressure force on the propulsion means.
- a pulling of the propulsion means through the water with muscle power thus controls the drive power of the drive unit, the drive power being influenced by the use of force by the user.
- the movement of the watercraft can thus be carried out with every pull of the propulsion means through the water the drive unit are supported, so that higher accelerations and higher speeds can be achieved with the watercraft than with a watercraft without a drive unit according to the invention.
- the acceleration detection device can have at least one acceleration sensor, which can also be referred to as a gyro sensor, the acceleration sensor being set up to detect an acceleration in three spatial directions. Thus, a forward and backward acceleration can be detected, so that the drive power can be controlled in a forward direction or in a reverse direction.
- the acceleration sensor can preferably be arranged at an outer end of the propulsion means.
- the compressive force detection device has at least one compressive force sensor, which can be designed as a piezoelectric, piezoresistive, inductive, capacitive or optical compressive force sensor.
- the pressure force sensor can be integrated in a sheet or a shaft of the propulsion means.
- the pressure force sensor is arranged on the counter bearing or in the shaft of the belt or skull in the area of the counter bearing support or counter bearing surround. It can also be provided that the pressure force sensor is arranged in the blade of a belt or skull.
- the pressure force sensor can have strain gauges which are integrated at least in regions into the material of the propulsion means. Furthermore, it can be provided that the pressure force sensor is integrated in an adhesive film which can be glued to the surface of a propulsion means. This makes it possible to couple the sensor unit with an existing driving means, so that the sensor unit can be retrofitted in existing systems.
- the drive unit has a direction change device, which can be designed with an oar or with directional jet nozzles. The direction of the rudder or the operation of the directional jet nozzles can be controlled with the control unit.
- control unit is set up to recognize gestures carried out with the propulsion means, the gestures being assigned control commands for controlling the drive unit and for controlling the direction change device.
- Gestures are to be understood as predefined movement sequences which are carried out by a user with the propulsion means. Gestures can be recognized on the basis of a sequence of at least two accelerations of the propulsion means, which are recognized with the acceleration detection device for detecting an acceleration of the drive means.
- the gesture control enables the user to control the direction without having to put the propulsion device down.
- the propulsion remains in the control of the user, which contributes to the stability of the watercraft.
- the sensor unit also has an acceleration detection device for detecting an acceleration of the watercraft and a speed detection device for detecting a speed of the watercraft, the control unit being set up to detect the speed and / or the acceleration of the watercraft during control the drive power of the drive unit.
- an acceleration detection device for detecting an acceleration of the watercraft
- a speed detection device for detecting a speed of the watercraft
- the control unit being set up to detect the speed and / or the acceleration of the watercraft during control the drive power of the drive unit.
- the control unit can be set up to reduce the drive power of the drive unit when a predeterminable speed of the watercraft is reached, with acceleration of the propulsion means and / or pressure force on the propulsion means not causing additional drive support with the drive unit. If a predetermined acceleration or a predetermined speed cannot be achieved, for example by a headwind or a counterflow, the control unit can be set up to adapt the drive power in such a way that the predetermined speed or the predetermined acceleration is achieved.
- the sensor unit also has a heart rate detection device for detecting a heart rate of a user, the control unit being set up to take into account the detected heart rate of the user when controlling the drive power of the drive unit.
- the heart rate detection device can be arranged in a gripping surface of the propulsion means in order to detect a heart rate directly over the gripping surface without the freedom of movement of the user being restricted by external devices.
- the heart rate detection device can, for example, also be designed as a chest strap, bracelet or ear clip, the data of the heart rate detection device being wirelessly transferable to the control unit.
- the heart rate of a user when controlling the drive power can be provided so as not to exceed a predefinable heart rate of the user by increasing the drive power of the drive unit when the predetermined heart rate is exceeded, so that the user uses less force when propelling with the propulsion means must, which reduces his heart rate. If the user falls below a predefinable heart rate, the drive power of the drive unit can be reduced, so that the user has to use more force to propel the watercraft, which can increase the heart rate.
- the sensor unit also has a flow detection device for detecting a water flow below the watercraft, the control unit being set up to take the detected water flow into account when controlling the drive power of the drive unit. Taking the water flow into account when controlling the drive power of the drive unit can be provided in order to achieve a predeterminable acceleration and / or a predeterminable speed, the drive power being reduced in the case of a flow in the direction of travel or correspondingly increased in the case of a counterflow.
- the flow detection device can have a flow sensor which can be attached to the watercraft. It can also be provided that a flow velocity of a body of water is measured by an external measuring point and transmitted to the control unit via a wireless communication connection.
- a position detection device can be provided for detecting a spatial position of the propulsion means, the control unit being set up to take the detected position of the propulsion means into account when controlling the direction change device and drive power of the drive unit.
- the position detection device can be designed as a component of the sensor unit, so that data and signals of the position detection device can be transmitted to the control unit via the sensor unit.
- the drive system can have a wireless communication unit with which data and signals can be transmitted wirelessly.
- the wireless communication unit can have, for example, a Bluetooth module with which data can be received, processed and forwarded by several sensor devices of the sensor unit.
- the sensor unit has a navigation device with a position detection device.
- the control unit can be configured to take position data and navigation data into account when controlling the drive power of the drive unit. Based on position data, the drive power can be controlled, for example, in such a way that a predetermined position of the watercraft is held without the propulsion means having to be used to propel the watercraft by means of muscle power.
- the sensor unit can be at least partially integrable with the propulsion means.
- Components and devices of the sensor unit that is to say the acceleration detection device, the pressure force detection device, the heart rate detection device, the position detection device, and the navigation device can preferably be used with
- Position detection device and the wireless communication unit can be integrated in the propulsion means.
- the drive system also has an input unit that can be fastened to the propulsion means, preferably in the grip area of the propulsion means, with which input control commands for controlling the drive unit and control commands for controlling the direction change device can be entered.
- the input unit is kept simple and preferably has only one control element for each hand.
- the control elements can preferably be designed in such a way that they are operated only with the thumbs, so that the user holds the propulsion means when operating the input unit can. Control is therefore also possible under adverse conditions, for example when whitewater rafting.
- vibration motors can be provided, which can preferably be arranged in the grip area of the propulsion means.
- An arrangement in the area of a seat of the user is also conceivable.
- a display unit which can also be provided as part of the drive system according to the invention, visual information of the navigation device, the control unit and / or the drive unit can be displayed.
- visual information is reproduced by means of light-emitting diodes which are integrated in the shaft or in the sheet of the propulsion means.
- the display is designed as a graphic display which can be fastened to the watercraft or to the propulsion means.
- a loudspeaker unit can be provided with which acoustic signals from the navigation device, the control unit and / or the drive unit can be reproduced.
- a smartphone can also be used as the display unit and can be wirelessly coupled to the control unit.
- the sensor unit also has at least one distance sensor that can be attached to the watercraft for detecting a collision of the watercraft, the control unit being configured in such a way that Signals of the at least one distance sensor to be taken into account when controlling the drive power of the drive unit.
- a consideration of the signals of the distance sensor is to be understood in such a way that the signals of the distance sensor are superior to the control commands which are caused by a movement of the propulsion means, so that a collision by reducing the drive power or by reversing the direction of the drive power can be avoided.
- collisions can be avoided without the user having to actively intervene, which makes maneuvering the watercraft easier for the inexperienced user.
- the object is further achieved by a method for controlling a drive support for a watercraft that can be moved with muscle power.
- a method for controlling a drive support for a watercraft that can be moved with muscle power an acceleration of a propulsion means that can be operated with muscle power for locomotion of a watercraft and / or a pressure force effect on the propulsion means is / are recorded, and the detected acceleration and / or the pressure force effect recorded on a control unit for controlling a drive power of a drive unit attached to the watercraft transferred, the drive power of the drive unit being controlled as a function of the acceleration of the propulsion means and / or as a function of the pressure force acting on the propulsion means.
- the method according to the invention enables a motor-assisted drive unit to be controlled without a user of the watercraft having to operate an additional control unit, since the drive power is controlled by the propulsion means as a function of the user's muscular strength.
- the drive power is greater, the more force is exerted on the propulsion means.
- an acceleration value and / or a pressure force value is assigned to switch on the drive unit and an acceleration value and / or a pressure force value is also assigned to switch off the drive unit. So can the drive unit is switched on when a predeterminable acceleration value and / or when a predeterminable pressure force value is exceeded, the drive unit being switched off when the predefined acceleration value and / or the predefinable pressure force value is undershot.
- the drive power of the drive unit can preferably be adapted directly to a change in the acceleration of the propulsion means and / or to a change in the pressure force effect on the propulsion means in order to noticeably support the propulsion for the user when the propulsion means is pulled through the water.
- the control of the drive power is based on a change in the pressure force on the propulsion means or on a change in acceleration of the propulsion means.
- the control of the drive power is also the possibility of combining the sensory values of the pressure force change and the acceleration change for the control of the drive power, a more precise control of the drive power, in particular when changing between forward drive and reverse drive, can be achieved.
- the acceleration of the propulsion means is recorded in the form of spatial direction vectors. This makes it possible to precisely record the direction of acceleration, the start of acceleration and the end of acceleration. Due to the detection of the directions of acceleration, a forward or a backward movement can be distinguished, so that the drive unit can be controlled accordingly to support the drive.
- a speed and / or an acceleration of the watercraft is / are recorded, which is / are taken into account when controlling the drive power of the drive unit.
- the drive power is reduced when a predeterminable speed of the watercraft is exceeded, which is advantageous in particular in water bodies or in areas of water bodies in which a speed limit is specified.
- a heart rate of a user is recorded, which is taken into account when controlling the drive power of the drive unit. It can be provided that the drive power of the drive unit is reduced when the preselectable heart rate falls below, while the drive power is increased when the preselectable heart rate is exceeded. This enables, for example, endurance training for a user, with the drive power being adapted to the heart rate in order to ensure a constant load and heart rate.
- Another advantage of the method according to the invention is to detect a water flow below the watercraft, which is taken into account when controlling the drive power of the drive unit. Taking the water flow into account enables the drive power to be adjusted in the event of a counterflow, with a desired or specified speed or a desired or specified acceleration cannot be achieved. Furthermore, it can be provided that a position of the watercraft is recorded. Using the position data, the drive power of the drive unit and a direction change device of the drive unit can be controlled in such a way that a position of the watercraft is held.
- a spatial position of the propulsion means is recorded, which is taken into account in the control of the drive power of the drive unit and a direction change device.
- the method according to the invention can additionally have a gesture control for controlling the drive power and for controlling a direction change device, a sequence of at least two acceleration values of an acceleration of the propulsion means being recognized as a gesture.
- a control command associated with the gesture is executed to control the drive power of the drive unit and / or to control the direction change device. It can be provided that two successive accelerations of the propulsion means in a Z direction are recognized as a gesture, the recognized gesture being associated with a control command for the change of direction, so that a change in direction of the direction of travel of the watercraft is triggered.
- Information about the drive power, a driving direction or navigation information can be reproduced haptically by means of vibration, optically by means of a display unit or acoustically using a loudspeaker unit.
- Such information can preferably be transmitted to a user by means of a vibration of the propulsion means in order to make the transmission of information simple and to keep the distraction of the user as low as possible.
- Figures 1 a - 1 c a schematic representation of a drive system for
- FIG. 2 a schematic detailed illustration of a propulsion means of the drive system according to the invention
- Figure 3 a flowchart of a method for controlling the
- Propulsion system for propulsion support of a watercraft that can be moved with muscle power.
- FIG. 1 a shows a schematic illustration of a system for supporting the drive of a watercraft 1 that can be moved with muscle power, in a side view, which in the present example is a kayak.
- the drive system has a drive unit 2, which is arranged below a seat 3 in the hull of the watercraft 1.
- FIG. 1 b shows an enlarged illustration of the drive unit 2 from FIG. 1 a, which has an electric motor 5, an impeller 6 driven by the electric motor 5 and a flow channel 7.
- the impeller 6 and the flow channel 7 together form a jet drive, which enables watercraft 1 to propel the watercraft 1 in a manner that is gentle on water plants.
- 1c shows the watercraft 1 in a view from above.
- the drive system has an energy source in the form of a battery 8 for providing electrical energy to the drive unit 2.
- a propulsion means 9 in the form of a paddle is used to propel the watercraft 1 by means of muscle power.
- a sensor unit is integrated in the paddle 9, which has at least one acceleration detection device for detecting an acceleration of the paddle 9 and / or at least one Compressive force detection device for detecting a compressive force on the paddle 9.
- a control unit 10 for controlling a drive power of the drive unit is arranged in the rear area of the watercraft 1.
- the control unit 10 is configured to receive signals from the sensor unit 14, so that the drive power of the drive unit 2 can be controlled as a function of the detected acceleration of the paddle 9 and / or the detected pressure force on the paddle 9.
- Signals in the form of radio signals 11 are transmitted wirelessly between the sensor unit 14 integrated in the paddle 9 and the control unit 10.
- the drive system has a wireless communication unit.
- a distance sensor 26 is arranged, which detects a distance between the watercraft 1 and an obstacle in the vicinity of the watercraft 1. Together with the control unit 10, the distance sensor 26 forms a collision detection device.
- the collision detection device takes into account a speed of the watercraft 1 and a change in distance, which is detected with the distance sensor 26, in order to determine a collision of the watercraft 1 with an obstacle in the area.
- the control unit 10 is set up to initiate countermeasures by reducing the drive power of the drive unit 2 or by directing the drive power in another direction.
- a flow detection device 4 is arranged in the water on an underside of the watercraft 1.
- Flow detection device 4 is a component of sensor unit 14, with data being exchanged wirelessly between flow detection device 4 and sensor unit 14. Since the sensor unit 14 is in contact with the control unit 10, data from the flow detection device 4 can be transmitted to the control unit 10, so that the drive power of the drive unit 2 is dependent on a water flow, which is detected by the flow detection device 4, can be controlled. Furthermore, it can be provided that the data from the flow detection device 4 are transmitted directly to the control unit 10 in order to control the drive power of the drive unit 2 on the basis of the data from the flow detection device 4.
- FIG. 2 shows a schematic detailed illustration of an exemplary embodiment of a propulsion means 9 of the drive system.
- the propulsion means 9 is a double paddle with a shaft 12 and two paddle blades 13.
- a sensor unit 14 which has a pressure force detection device in the form of strain gauges 15, which are integrated in the paddle blades 13, and an acceleration detection device 16, which one
- Has acceleration sensor and a position sensor is integrated in the paddle 9.
- a battery 8 is arranged in the shaft 12 of the paddle 9 and can be charged via an interface 17 for inductive charging or via a USB interface 18.
- the battery 8 serves to supply electrical loads to the sensor unit 14.
- a Bluetooth interface 19 can be used for wireless communication with the control unit 10.
- a smartphone to the sensor unit 14 by means of the Bluetooth interface 19.
- tasks of the sensor unit 14 and the control unit 10 can be processed on the smartphone by means of software.
- a navigation device of the smartphone can be used to determine a position, the control unit 10 being set up to take data from the navigation device of the smartphone into account when controlling the drive power of the drive unit 2.
- an operating unit 20 is integrated in the paddle shaft 12, which has operating elements 21, 22 and 23.
- the control unit 20 is provided to be able to make inputs for controlling components of the drive system.
- the controls 21, 22 and 23 are arranged to be reachable with the left thumb of a user.
- Vibration motors 24, which are coupled to the control unit 9, can be arranged on both sides in the paddle shaft 12 in the grip area of the paddle 9.
- the vibration motors 24 serve for the haptic information reproduction of the control unit 10, the drive unit 2 or the sensor unit 14.
- An LED display unit 25 is set up to display visual information from the control unit 10, the drive unit 2 or the sensor unit 14.
- FIG. 3 shows a flowchart of a method for controlling a drive support of a watercraft 1 that can be moved with muscle power.
- the drive support is carried out by variably adapting a drive power of the drive unit 2 on the basis of data which are transmitted from the sensor unit 14 of the propulsion means 9 to the control unit 10.
- the step-by-step procedure is such that in a first step 27 an acceleration of the propulsion means 9 and a
- the impact of pressure on the propulsion means 9 can be detected.
- a pressure force on the propulsion means 9 can be detected when a user moves the propulsion means 9 through the water with muscular strength in order to propel the watercraft 1 on the water.
- the pressure force value recorded is greater, the more force the user exerts on the
- Propulsion means 9 can be derived.
- the pressure force and acceleration values detected in step 27 are transmitted from the sensor unit 14 to the control unit 10, the control unit 10 evaluating the detected pressure force and acceleration values in the second step 28. From the values
- the control unit 10 calculates acceleration and pressure force Desired drive support in which control commands for controlling the drive unit 2 are assigned to the calculated values from the acceleration and the pressure force. It can be provided that a calculated value from the values of acceleration and pressure force is assigned a switching point for switching on and / or switching off the drive unit 2, so that the drive unit 2 is switched on when the predefinable switch-on point is exceeded, the drive unit 2 falling below the predefinable one Switch-off point is switched off. As a result, the drive unit 2 advantageously remains switched off in the event of slight movements of the propulsion means 9 which are not intended to initiate propulsion.
- the assigned control commands serve to control the drive power of the drive unit 2.
- the control command based on the values of acceleration and pressure force is carried out to control the drive power of the drive unit 2, the drive power being greater the more force the user exerts on the propulsion means 9 exercises to propel the watercraft 1.
- the drive power is dependent on the engine speed of the drive unit, so that an increase in the drive power is accompanied by an increase in the engine speed of the drive unit 2.
- the values of pressure force and acceleration on the propulsion means 9 are recorded continuously. This makes it possible to detect a change in pressure force and a change in acceleration during a propulsion movement of the propulsion means 9.
- the drive power of the drive unit 2 is immediately adapted to a change in the values of pressure force and acceleration, so that drive support of the drive unit 2 can be felt directly by the user.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Manipulator (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018121649.1A DE102018121649A1 (en) | 2018-09-05 | 2018-09-05 | Drive system for a watercraft that can be moved with muscle power and method for controlling a drive system |
PCT/DE2019/100792 WO2020048566A1 (en) | 2018-09-05 | 2019-09-03 | Drive system for a watercraft that can be moved by muscle power, and method for controlling a drive system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3847093A1 true EP3847093A1 (en) | 2021-07-14 |
Family
ID=67981815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19769377.3A Withdrawn EP3847093A1 (en) | 2018-09-05 | 2019-09-03 | Drive system for a watercraft that can be moved by muscle power, and method for controlling a drive system |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3847093A1 (en) |
DE (1) | DE102018121649A1 (en) |
WO (1) | WO2020048566A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2022287737A1 (en) * | 2021-06-11 | 2024-01-18 | Barracuda Kayaks Limited | Motor assisted paddlecraft |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011109313A2 (en) * | 2010-03-01 | 2011-09-09 | Dainuri Rott | Paddle-integrated wireless controller |
US10300998B2 (en) * | 2016-12-19 | 2019-05-28 | Yamaha Hatsudoki Kabushiki Kaisha | Aquatic jet propulsion device |
-
2018
- 2018-09-05 DE DE102018121649.1A patent/DE102018121649A1/en active Pending
-
2019
- 2019-09-03 WO PCT/DE2019/100792 patent/WO2020048566A1/en unknown
- 2019-09-03 EP EP19769377.3A patent/EP3847093A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE102018121649A1 (en) | 2020-03-05 |
WO2020048566A9 (en) | 2020-05-22 |
WO2020048566A1 (en) | 2020-03-12 |
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