EP4121386B1 - Réinitialisation de données stockées associées à un paramètre d'entraînement surveillé sur la base d'un début détecté d'opération de prise de livraison - Google Patents

Réinitialisation de données stockées associées à un paramètre d'entraînement surveillé sur la base d'un début détecté d'opération de prise de livraison Download PDF

Info

Publication number
EP4121386B1
EP4121386B1 EP21720032.8A EP21720032A EP4121386B1 EP 4121386 B1 EP4121386 B1 EP 4121386B1 EP 21720032 A EP21720032 A EP 21720032A EP 4121386 B1 EP4121386 B1 EP 4121386B1
Authority
EP
European Patent Office
Prior art keywords
vehicle
handling assembly
truck
load
load handling
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.)
Active
Application number
EP21720032.8A
Other languages
German (de)
English (en)
Other versions
EP4121386A1 (fr
Inventor
Andreas Simon
Sebastian Theos
Johannes NACHTIGAL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crown Equipment Corp
Original Assignee
Crown Equipment Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Crown Equipment Corp filed Critical Crown Equipment Corp
Publication of EP4121386A1 publication Critical patent/EP4121386A1/fr
Application granted granted Critical
Publication of EP4121386B1 publication Critical patent/EP4121386B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07581—Remote controls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/24—Electrical devices or systems

Definitions

  • Materials handling vehicles are commonly used for picking stock in warehouses and distribution centers. Such vehicles typically include a power unit and a load handling assembly, which may include load carrying forks. The vehicle also has control structures for controlling operation and movement of the vehicle.
  • WO 2011/002478 A2 discloses a materials handling vehicle having a controller, a load sensor and an obstacle detector that generates a distance signal upon detecting an object.
  • a finger-mounted remote control device is capable of wirelessly transmitting a travel request signal to the materials handling vehicle.
  • WO 2011/002478 A2 discloses a method with features of the preamble of the independent claim 1 and a system with features of the preamble of the independent claim 9.
  • US 2018/009643 A1 discloses a load handling system for a vehicle that is capable of operating in manual and automated modes.
  • US 9 547 945 B2 discloses a control system operates an industrial vehicle that includes a propulsion drive system and a guidance and navigation system operatively connected to the propulsion drive system to control motion of the industrial vehicle along a path, in an unmanned, autonomous mode.
  • a wireless communicator transmits vehicle operational data to an asset management computer located remotely from the industrial vehicle, and receives commands from the asset management computer for remotely controlling operation of the industrial vehicle.
  • This disclosure relates to a method for operating a materials handling vehicle that includes monitoring, by a controller, a first vehicle drive parameter during a manual operation of the vehicle by an operator; storing, by the controller, data related to the monitored first vehicle drive parameter, the controller configured to use the stored data for implementing a semi-automated driving operation of the vehicle subsequent to the manual operation of the vehicle; detecting, by the controller, operation of the vehicle indicative of a start of a pick operation occurring during the manual operation of the vehicle; and based on detecting the start of the pick operation, resetting, by the controller, the stored data related to the monitored first vehicle drive parameter.
  • the method in accordance with embodiments disclosed herein further includes resuming, by the controller, monitoring of the first vehicle drive parameter after resetting the stored data.
  • the detected operation of the vehicle comprises a transition from the vehicle being manually driven with a raised load handling assembly to the vehicle being stopped with a lowered load handling assembly.
  • the raised load handling assembly can be bearing a substantially non-zero load and the lowered load handling assembly can be bearing a substantially zero load.
  • the load handling assembly can comprise one or more forks and the detected operation of the vehicle further comprises movement of the vehicle for a distance, which distance may be at least equal to a length of a load carried by the forks.
  • the movement of the vehicle for the distance at least equal to the length of the load carried by the forks occurs after the transition of the vehicle to being stopped with the lowered load handling assembly.
  • the detected operation of the vehicle further comprises driving of the vehicle with a lowered load handling assembly.
  • the lowered load handling assembly can be bearing a substantially zero load.
  • the detected operation of the vehicle further comprises a transition from the vehicle moving with the lowered load handling assembly to the vehicle being stopped with a subsequently raised load handling assembly, wherein the subsequently raised load handling assembly bears a load less than a predetermined amount but more than the substantially zero load.
  • a load less than a predetermined amount but more than the substantially zero load may comprise a substantially empty pallet on the load handling assembly.
  • the detected operation of the vehicle comprises a first transition from the vehicle being manually driven with a raised load handling assembly to the vehicle being stopped with a lowered load handling assembly; movement of the vehicle with the lowered load handling assembly for a distance at least equal to a length of a load carried by the load handling assembly, the movement occurring after the first transition; and a second transition from the vehicle moving with the lowered load handling assembly to the vehicle being stopped with the load handling assembly newly raised.
  • the lowered load handling assembly bears a substantially zero load and the newly raised load handling assembly bears a load less than a predetermined amount but more than the substantially zero.
  • the method can include monitoring, by the controller, a second vehicle drive parameter during the manual operation of the vehicle by the operator; and storing, by the controller, data related to the monitored second vehicle drive parameter, the controller configured to use the stored data of the monitored first and the second vehicle drive parameter for implementing the semi-automated driving operation of the vehicle subsequent to the manual operation of the vehicle.
  • a system for operating a materials handling vehicle includes a memory storing executable instructions; and a processor in communication with the memory.
  • execution of the executable instructions by the processor causes the processor to: monitor a first vehicle drive parameter during a manual operation of the vehicle by an operator; store data related to the monitored first vehicle drive parameter, the controller configured to use the stored data for implementing a semi-automated driving operation of the vehicle subsequent to the manual operation of the vehicle; detect operation of the vehicle indicative of a start of a pick operation occurring during the manual operation of the vehicle; and reset the stored data related to the monitored first vehicle drive parameter based on detecting the start of the pick operation.
  • the system further includes the processor resuming monitoring of the first vehicle drive parameter after resetting the stored data.
  • the detected operation of the vehicle comprises a transition from the vehicle being manually driven with a raised load handling assembly to the vehicle being stopped with a lowered load handling assembly.
  • the raised load handling assembly can be bearing a substantially non-zero load and the lowered load handling assembly can be bearing a substantially zero load.
  • the load handling assembly can comprise one or more forks and the detected operation of the vehicle further comprises movement of the vehicle for a distance, which distance may be at least equal to a length of a load carried by the forks.
  • the movement of the vehicle for the distance at least equal to the length of the load carried by the forks occurs after the transition of the vehicle to being stopped with the lowered load handling assembly.
  • the detected operation of the vehicle further comprises driving of the vehicle with a lowered load handling assembly.
  • the lowered load handling assembly can be bearing a substantially zero load.
  • the detected operation of the vehicle further comprises a transition from the vehicle moving with the lowered load handling assembly to the vehicle being stopped with a subsequently raised load handling assembly, wherein the subsequently raised load handling assembly bears a load less than a predetermined amount but more than the substantially zero load.
  • the detected operation of the vehicle comprises a first transition from the vehicle being manually driven with a raised load handling assembly to the vehicle being stopped with a lowered load handling assembly; movement of the vehicle with the lowered load handling assembly for a distance at least equal to a length of a load carried by the load handling assembly, the movement occurring after the first transition; and a second transition from the vehicle moving with the lowered load handling assembly to the vehicle being stopped with the load handling assembly newly raised.
  • the lowered load handling assembly bears a substantially zero load and the newly raised load handling assembly bears a load less than a predetermined amount but more than the substantially zero load.
  • the system can include the processor monitoring a second vehicle drive parameter during the manual operation of the vehicle by the operator; and storing data related to the monitored second vehicle drive parameter, wherein the processor is configured to use the stored data of the monitored first and the second vehicle drive parameter for implementing the semi-automated driving operation of the vehicle subsequent to the manual operation of the vehicle.
  • a materials handling vehicle which is illustrated as a low level order picking truck 10 includes in general a load handling assembly 12 that extends from a power unit 14.
  • the load handling assembly 12 includes a pair of forks 16, each fork 16 having a load supporting wheel assembly 18.
  • the load handling assembly 12 may include other load handling features in addition to, or in lieu of the illustrated arrangement of the forks 16, such as a load backrest, scissors-type elevating forks, outriggers or separate height adjustable forks.
  • the load handling assembly 12 may include load handling features such as a mast, a load platform, collection cage or other support structure carried by the forks 16 or otherwise provided for handling a load supported and carried by the truck 10 or pushed or pulled by the truck, i.e., such as by a tugger vehicle.
  • load handling features such as a mast, a load platform, collection cage or other support structure carried by the forks 16 or otherwise provided for handling a load supported and carried by the truck 10 or pushed or pulled by the truck, i.e., such as by a tugger vehicle.
  • the illustrated power unit 14 comprises a step-through operator's station 30 dividing a first end section 14A of the power unit 14 (opposite the forks 16) from a second end section 14B (proximate the forks 16).
  • the step-through operator's station 30 provides a platform 32 upon which an operator may stand to drive the truck 10 and/or to provide a position from which the operator may operate the various included features of the truck 10.
  • a first work area is provided towards the first end section 14A of the power unit 14 and includes a control area 40 for driving the truck 10 when the operator is standing on the platform 32 and for controlling the features of the load handling assembly 12.
  • the first end section 14A defines a compartment 48 for containing a battery, control electronics, including a controller 103 (see Fig. 2 ), and motor(s), such as a traction motor, steer motor and lift motor for the forks (not shown).
  • the control area 40 comprises a handle 52 for steering the truck 10, which may include controls such as grips, butterfly switches, thumbwheels, rocker switches, a hand wheel, a steering tiller, etc., for controlling the acceleration/braking and travel direction of the truck 10, see Figs. 1A and 1B .
  • a control such as a switch grip or travel switch 54 may be provided on the handle 52, which is spring biased to a center neutral position.
  • Rotating the travel switch 54 forward and upward will cause the truck 10 to move forward, e.g., power unit first, at an acceleration proportional to the amount of rotation of the travel switch 54 until the truck 10 reaches a predefined maximum speed, at which point the truck 10 is no longer permitted to accelerate to a higher speed.
  • the travel switch 54 is very quickly rotated 50% of a maximum angle of rotation capable for the grip 54
  • the truck 10 will accelerate at approximately 50% of the maximum acceleration capable for the truck until the truck reaches 50% of the maximum speed capable for the truck.
  • acceleration may be determined using an acceleration map stored in memory where the rotation angle of the grip 54 is used as an input into and has a corresponding acceleration value in the acceleration map.
  • the acceleration values in the acceleration map corresponding to the grip rotation angles may be proportional to the grip rotation angles or vary in any desired manner.
  • Presence sensors 58 may be provided to detect the presence of an operator on the truck 10.
  • presence sensors 58 may be located on, above or under the platform floor, or otherwise provided about the operator's station 30.
  • the presence sensors 58 are shown in dashed lines indicating that they are positioned under the platform floor.
  • the presence sensors 58 may comprise load sensors, switches, etc.
  • the presence sensors 58 may be implemented above the platform floor, such as by using ultrasonic, capacitive, laser scanner, camera or other suitable sensing technology. The utilization of presence sensors 58 will be described in greater detail herein.
  • An antenna 66 extends vertically from the power unit 14 and is provided for receiving control signals from a corresponding wireless remote control device 70. It is also contemplated that the antenna 66 may be provided within the compartment 48 of the power unit 14 or elsewhere on the truck 10.
  • the truck 10 may include a pole (not shown) that extends vertically from the power unit 14 and includes an antenna 66 that is provided for receiving control signals from a corresponding wireless remote control device 70.
  • the pole may include a light at the top, such that the pole and light define a light tower.
  • the remote control device 70 may comprise a transmitter that is worn or otherwise maintained by the operator.
  • the remote control device 70 is manually operable by an operator, e.g., by pressing a button or other control, to cause the remote control device 70 to wirelessly transmit at least a first type of signal designating a travel request to the truck 10.
  • the travel request is a command that requests the corresponding truck 10 to travel by a predetermined amount, as will be described in greater detail herein.
  • the truck 10 also comprises one or more obstacle sensors 76, which are provided about the truck 10, e.g., towards the first end section of the power unit 14 and/or to the sides of the power unit 14.
  • the obstacle sensors 76 include at least one contactless obstacle sensor on the truck 10, and are operable to define at least one detection zone.
  • at least one detection zone may define an area at least partially in front of a forward traveling direction of the truck 10 when the truck 10 is traveling in response to a wirelessly received travel request from the remote control device 70.
  • the obstacle sensors 76 may comprise any suitable proximity detection technology, such as ultrasonic sensors, optical recognition devices, infrared sensors, laser scanner sensors, etc., which are capable of detecting the presence of objects/obstacles or are capable of generating signals that can be analyzed to detect the presence of objects/obstacles within the predefined detection zone(s) of the power unit 14.
  • suitable proximity detection technology such as ultrasonic sensors, optical recognition devices, infrared sensors, laser scanner sensors, etc.
  • the truck 10 may be implemented in other formats, styles and features, such as an end control pallet truck that includes a steering tiller arm that is coupled to a tiller handle for steering the truck.
  • the remote control device 70 is illustrated as a glove-like structure 70, numerous implementations of the remote control device 70 may be implemented, including for example, finger worn, lanyard or sash mounted, etc.
  • the truck, remote control system and/or components thereof, including the remote control device 70 may comprise any additional and/or alternative features or implementations.
  • a block diagram illustrates a control arrangement for integrating remote control commands with the truck 10.
  • the antenna 66 is coupled to a receiver 102 for receiving commands issued by the remote control device 70.
  • the receiver 102 passes the received control signals to the controller 103, which implements the appropriate response to the received commands and may thus also be referred to herein as a master controller.
  • the controller 103 is implemented in hardware and may also execute software (including firmware, resident software, micro-code, etc.).
  • embodiments may take the form of a computer program product embodied in one or more computer readable medium(s) having computer readable program code embodied thereon.
  • the controller 103 may comprise an electronic controller defining, at least in part, a data processing system suitable for storing and/or executing program code and may include at least one processor coupled directly or indirectly to memory elements, e.g., through a system bus or other suitable connection.
  • the memory elements can include local memory employed during actual execution of the program code, memory that is integrated into a microcontroller or application specific integrated circuit (ASIC), a programmable gate array or other reconfigurable processing device, etc.
  • the at least one processor may include any processing component operable to receive and execute executable instructions (such as program code from one or more memory elements).
  • the at least one processor may comprise any kind of a device which receives input data, processes that data through computer instructions, and generates output data.
  • Such a processor can be a microcontroller, a hand-held device, laptop or notebook computer, desktop computer, microcomputer, digital signal processor (DSP), mainframe, server, cell phone, personal digital assistant, other programmable computer devices, or any combination thereof.
  • processors can also be implemented using programmable logic devices such as field programmable gate arrays (FPGAs) or, alternatively, realized as application specific integrated circuits (ASICs) or similar devices.
  • FPGAs field programmable gate arrays
  • ASICs application specific integrated circuits
  • the term "processor” is also intended to encompass a combination of two or more of the above recited devices, e.g., two or more microcontrollers.
  • the response implemented by the controller 103 in response to wirelessly received commands may comprise one or more actions, or inactions, depending upon the logic that is being implemented. Positive actions may comprise controlling, adjusting or otherwise affecting one or more components of the truck 10.
  • the controller 103 may also receive information from other inputs 104, e.g., from sources such as the presence sensors 58, the obstacle sensors 76, switches, load sensors, encoders and other devices/features available to the truck 10 to determine appropriate action in response to the received commands from the remote control device 70.
  • the sensors 58, 76, etc. may be coupled to the controller 103 via the inputs 104 or via a suitable truck network, such as a control area network (CAN) bus 110.
  • CAN control area network
  • a further input into the controller 103 may be a weight signal generated by a load sensor LS, such as a conventional pressure transducer, see Fig. 2 , which senses the combined weight of the forks 16 and any load on the forks 16.
  • the load sensor LS may be incorporated into a hydraulic system for effecting lift of the forks 16.
  • one or more weight sensing cells may be integrated into the forks 16 to sense a load L on the forks 16 and generate a corresponding load sensing signal to the controller 103.
  • the controller 103 is also capable of determining the vertical location, i.e., height, of the load handling assembly 12 including the forks 16 relative to ground, such as a floor surface along which the truck 10 travels, as follows.
  • One or more height sensors or switches may be provided in the second end section 14B of the power unit 14, which sense when the load handling assembly 12 including the forks 16 is raised vertically relative to ground and/or a lower point on the first end section 14A of the power unit 14.
  • first, second and third switches (not shown) may be provided within the second end section 14B at first, second and third vertical locations designated by dotted lines 141A, 141B and 141C in Fig. 1A , which switches are actuated as the load handling assembly 12 is raised.
  • a lowermost position of the load handling assembly 12 may also be determined via the load sensor LS indicating a zero weight.
  • the controller 103 may comprise one or more accelerometers which may measure physical acceleration of the truck 10 along one, two or three axes. It is also contemplated that the accelerometer 1103 may be separate from the controller 103 but coupled to and in communication with the controller 103 for generating and transmitting to the controller 103 acceleration signals, see Fig. 2 .
  • the accelerometer 1103 may measure the acceleration of the truck 10 in a direction of travel DT (also referred to herein as a first direction of travel) of the truck 10, which, in the Fig. 1 embodiment, is collinear with an axis X, which X axis may be generally parallel with the forks 16.
  • the direction of travel DT or first direction of travel may be defined as the direction in which the truck 10 is moving, either in a forward or power unit first direction or a reverse or forks first direction.
  • the accelerometer 1103 may further measure the acceleration of the truck 10 along a transverse direction TR (also referred to herein as a second direction) generally 90 degrees to the direction of travel DT of the truck 10, which transverse direction TR, in the Fig. 1 embodiment, is collinear with an axis Y.
  • the accelerometer 1103 may also measure the acceleration of the truck 10 in a further direction transverse to both the direction of travel DT and the transverse direction TR, which further direction is generally collinear with an axis Z.
  • the remote control device 70 is operative to wirelessly transmit a control signal that represents a first type signal such as a travel command to the receiver 102 on the truck 10.
  • the travel command is also referred to herein as a "travel signal", “travel request” or “go signal”.
  • the travel request is used to initiate a request to the truck 10 to travel by a predetermined amount, e.g., to cause the truck 10 to advance or jog, typically only in the power unit first direction, by a limited travel distance.
  • the limited travel distance may be defined by an approximate travel distance, travel time or other measure.
  • the truck may be driven continuously as long as an operator provides a travel request not lasting longer than a predetermined time amount, e.g., 20 seconds.
  • a traction motor effecting truck movement is no longer activated and the truck is permitted to coast to a stop.
  • the truck 10 may be controlled to travel in a generally straight direction or along a previously determined heading.
  • a first type signal received by the receiver 102 is communicated to the controller 103. If the controller 103 determines that the travel signal is a valid travel signal and that the current vehicle conditions are appropriate (explained in greater detail below), the controller 103 sends a signal to the appropriate control configuration of the particular truck 10 to advance and then stop the truck 10. Stopping the truck 10 may be implemented, for example, by either allowing the truck 10 to coast to a stop or by initiating a brake operation to cause the truck 10 to brake to a stop.
  • the controller 103 may be communicably coupled to a traction control system, illustrated as a traction motor controller 106 of the truck 10.
  • the traction motor controller 106 is coupled to a traction motor 107 that drives at least one driven wheel 108 of the truck 10.
  • the controller 103 may communicate with the traction motor controller 106 so as to accelerate, decelerate, adjust and/or otherwise limit the speed of the truck 10 in response to receiving a travel request from the remote control device 70.
  • the controller 103 may also be communicably coupled to a steer controller 112, which is coupled to a steer motor 114 that steers at least one steered wheel 108 of the truck 10, wherein the steered wheel may be different from the driven wheel.
  • the truck 10 may be controlled by the controller 103 to travel an intended path or maintain an intended heading in response to receiving a travel request from the remote control device 70.
  • the controller 103 may determine whether the truck 10 is moving or stopped and a linear distance that the truck 10 has travelled as follows. First, the controller 103 may determine whether the truck 10 is moving or stopped using the signals generated by the accelerometer 1103 and integrating once. It is also possible to determine if the truck 10 is moving by determining if the current value from the accelerometer 1103 is greater than zero. The controller 103 may also determine the linear distance that the truck 10 has travelled using the signals generated by the accelerometer 1103 and integrating twice. Alternatively, the traction controller 106 may receive feedback signals generated by an encoder within the traction motor 107 and from those signals generate a motor angular velocity signal to the controller 103. The controller 103 may determine whether the vehicle is moving or stopped from the motor angular velocity signal.
  • the controller 103 may also convert the motor angular velocity signal to an actual linear speed of the truck 10. If, for example, the velocity signal comprises an angular speed of the traction motor 107, then the controller 103 may scale that value to an actual linear speed of the vehicle 10 based on a) a gearing ratio between the traction motor 107 and a driven wheel of the vehicle and b) the circumference of the driven wheel. The linear speed of the vehicle may then be used (via integration) to determine a distance that the truck 10 has travelled.
  • the controller 103 may also communicate with the traction controller 106 to decelerate, stop or otherwise control the speed of the truck 10 in response to receiving a travel request from the remote control device 70. Braking may be effected by the traction controller 106 by causing regenerative braking or activating a mechanical brake 117 coupled to the traction motor 107, see Fig. 2 . Still further, the controller 103 may be communicably coupled to other vehicle features, such as main contactors 118, and/or other outputs 119 associated with the truck 10, where applicable, to implement desired actions in response to implementing remote travel functionality.
  • the controller 103 may communicate with the receiver 102 and with the traction controller 106 to operate the truck 10 under remote control in response to receiving travel commands from the associated remote control device 70.
  • the controller 103 may dynamically alter, control, adjust or otherwise affect the remote control operation, e.g., by stopping the truck 10, changing the steer angle of the truck 10, or taking other actions.
  • the particular vehicle features, the state/condition of one or more vehicle features, vehicle environment, etc. may influence the manner in which controller 103 responds to travel requests from the remote control device 70.
  • the controller 103 may refuse to acknowledge a received travel request depending upon predetermined condition(s), e.g., that relate to environmental or operational factor(s). For example, the controller 103 may disregard an otherwise valid travel request based upon information obtained from one or more of the sensors 58, 76. As an illustration, according to embodiments, the controller 103 may optionally consider factors such as whether an operator is on the truck 10 when determining whether to respond to a travel command from the remote control device 70. As noted above, the truck 10 may comprise at least one presence sensor 58 for detecting whether an operator is positioned on the truck 10. In this regard, the controller 103 may be further configured to respond to a travel request to operate the truck 10 under remote control when the presence sensor(s) 58 designates that no operator is on the truck 10.
  • the truck 10 cannot be operated in response to wireless commands from the transmitter unless the operator is physically off of the truck 10.
  • the controller 103 may refuse to acknowledge a travel request from the transmitter 70.
  • an operator must be located within a limited range of the truck 10, e.g., close enough to the truck 10 to be in wireless communication range (which may be limited to set a maximum distance of the operator from the truck 10). Other arrangements may alternatively be implemented.
  • controller 103 may also/alternatively be implemented by the controller 103 to interpret and take action in response to received signals from the transmitter.
  • the controller 103 Upon acknowledgement of a travel request, the controller 103 interacts with the traction motor controller 106, e.g., directly or indirectly, e.g., via a bus such as the CAN bus 110 if utilized, to advance the truck 10 by a limited amount.
  • the controller 103 may interact with the traction motor controller 106 and optionally, the steer controller 112, to advance the truck 10 by a predetermined distance.
  • the controller 103 may interact with the traction motor controller 106 and optionally, the steer controller 112, to advance the truck 10 for a period of time in response to the detection and maintained actuation of a travel control on the remote control device 70.
  • the remote control device 70 may also be operative to transmit a second type signal, such as a "stop signal", designating that the truck 10 should brake and/or otherwise come to rest.
  • the second type signal may also be implied, e.g., after implementing a "travel" command, e.g., after the truck 10 has traveled a predetermined distance, traveled for a predetermined time, etc., under remote control in response to the travel command. If the controller 103 determines that a wirelessly received signal is a stop signal, the controller 103 sends a signal to the traction controller 106 and/or other truck component to bring the truck 10 to a rest.
  • the second type signal may comprise a "coast signal” or a "controlled deceleration signal” designating that the truck 10 should coast, eventually slowing to rest.
  • the time that it takes to bring the truck 10 to a complete rest may vary, depending for example, upon the intended application, the environmental conditions, the capabilities of the particular truck 10, the load on the truck 10 and other similar factors. For example, after completing an appropriate jog movement, it may be desirable to allow the truck 10 to "coast" some distance before coming to rest so that the truck 10 stops slowly. This may be achieved by utilizing regenerative braking to slow the truck 10 to a stop. Alternatively, a braking operation may be applied after a predetermined delay time to allow a predetermined range of additional travel to the truck 10 after the initiation of the stop operation.
  • the controller may apply predetermined torque to the braking operation. Under such conditions, the controller 103 may instruct the traction controller 106 to brake via regenerative braking or applying the mechanical brake 117 to stop the truck 10.
  • an operator may stand on the platform 32 within the operator's station 30 to manually operate the truck 10, i.e., operate the truck in a manual mode.
  • the operator may steer the truck 10 via the handle 52, see Fig. 1B , and, further, may cause the truck 10 to accelerate via rotation of the travel switch 54.
  • rotation of the travel switch 54 forward and upward will cause the truck 10 to move forward, e.g., power unit first, at an acceleration that may be proportional to the amount of rotation of the travel switch 54.
  • rotating the travel switch 54 toward the rear and downward of the truck 10 will cause the truck 10 to move in reverse, e.g., forks first, at an acceleration that may be proportional to the amount of rotation of the travel switch 54.
  • Rotation of the travel switch 54 forward and upward while the truck 10 is moving in the forks first direction will cause the truck 10 to brake. Also, rotating the travel switch 54 toward the rear and downward while the truck 10 is moving in the power unit first direction will cause the truck 10 to brake.
  • "manual operation of the vehicle by an operator” occurs when an operator is standing on the platform 32 within the operator's station 30 and steering the truck 10 via the handle 52 and accelerating/braking (i.e., regenerative braking) the truck via rotation of the travel switch 54.
  • a separate brake switch for example switch 41 of Fig. 1B , can be used by the operator to cause regenerative braking of the truck 10.
  • braking may also be effected via the mechanical brake 117.
  • the controller 103 may communicate with the receiver 102 and with the traction controller 106 to operate the truck 10 under remote control in response to receiving travel commands from the associated remote control device 70.
  • the travel request is used to initiate a request to the truck 10 to travel by a predetermined amount, e.g., to cause the truck 10 to advance or jog in the first direction of travel, i.e., in the power unit first direction, by a limited travel distance.
  • the operator may operate the truck 10 in a remote control mode when the operator is not physically present on the truck but is walking near the truck 10 such as during a picking operation, i.e., when the operator is located off the truck 10 and picking or gathering pick items from warehouse storage areas to be loaded on the truck 10, using the remote control device 70 to operate the truck 10 under remote control.
  • Operating the truck 10 in the remote control mode is also referred to herein as "semi-automated" operation of the truck 10.
  • the operator When an operator is using the truck 10, such as during a picking operation within a warehouse, the operator typically uses the truck 10 in both the manual mode and the remote control mode.
  • a vehicle controller stored a predefined, fixed vehicle parameter, e.g., a maximum acceleration, to limit the maximum acceleration of the vehicle during operation of the vehicle in the remote control mode.
  • This predefined maximum acceleration limit was sometimes too high, e.g., if the truck was being loaded with a tall stack of articles/packages defining loads that were unstable, and too low if the truck was being loaded with a short stack of articles/packages defining loads that were stable.
  • the controller 103 monitors one or more drive parameters during a most recent manual operation of the truck 10, which one or more drive parameters correspond to a driving behavior or trait of an operator of the truck 10. If the one or more drive parameters are high, this may correspond to the operator driving the truck 10 briskly. If the one or more drive parameters are low, this may correspond to the operator driving the truck 10 conservatively or cautiously. Instead of using one or more predefined, fixed drive parameters for vehicle control during remote control operation of the truck 10, the controller 103 calculates one or more adaptive drive parameters for use during a next remote control operation of the truck 10 based on the one or more drive parameters monitored during a most recent manual operation of the truck 10.
  • the controller 103 more accurately and appropriately defines the one or more drive parameters to be used during a next remote control operation of the truck 10 such that the one or more drive parameters more closely match to the most recent driving behavior of the operator.
  • FIG. 3 An example control algorithm, or process, for the controller 103 is illustrated in Fig. 3 for monitoring first and second drive parameters, e.g., acceleration in first and second directions, during a most recent manual operation of the truck 10 to calculate a corresponding adaptive drive parameter, e.g., a maximum acceleration, to be used by the controller 103 when the truck 10 is next operated in the remote control mode.
  • first and second drive parameters e.g., acceleration in first and second directions
  • a corresponding adaptive drive parameter e.g., a maximum acceleration
  • the controller 103 monitors concurrently during a most recent manual operation of the vehicle, a first drive parameter, e.g., a first acceleration, corresponding to a first direction of travel of the vehicle or truck 10 and a second drive parameter, e.g., a second acceleration, corresponding to a second direction, which is different from the first direction of travel.
  • a first drive parameter e.g., a first acceleration
  • a second drive parameter e.g., a second acceleration
  • the controller 103 replaces any stored data, i.e., first stored data, regarding the monitored first and second vehicle drive parameters corresponding to the previous manual operation of the vehicle by the operator with recent data, i.e., second data, regarding the monitored first and second vehicle drive parameters during the most recent manual operation of the vehicle, wherein the recent data is not calculated using or based on the previously stored data from the previous manual operation of the vehicle.
  • the vehicle may have been operated in a remote control mode after the previous manual operation of the vehicle and before the most recent manual operation of the vehicle.
  • An operator may vary acceleration of the truck 10 based on factors such as the curvature of the path along which the truck 10 is being driven, the turning angle of the truck 10, the current floor conditions, e.g., a wet/slippery floor surface or a dry/non-slippery floor surface, and/or the weight and height of any load being carried by the truck 10. For example, if the truck 10 is being driven without a load or with a stable load, e.g., the load has a low height, over a long, straight path, on a dry/non-slippery floor surface, then values for the first acceleration may be high.
  • values for the first acceleration may be low.
  • values for the first acceleration may be high and values for the second acceleration may also be high.
  • the controller 103 receives, after the most recent manual operation of the vehicle or truck 10, a request to implement a semi-automated driving operation, i.e., a request to operate the truck 10 in the remote control mode.
  • a semi-automated driving operation i.e., a request to operate the truck 10 in the remote control mode.
  • the controller 103 may receive a travel request from the remote control device 70. Such a travel request may define a request to implement a first semi-automated driving operation.
  • step 205 the controller 103, based on the first and second monitored vehicle drive parameters during the most recent manual operation of the truck 10, implements the semi-automated driving operation of the truck 10.
  • the controller 103 based on the recent data regarding the monitored first and second vehicle drive parameters during the most recent manual operation of the vehicle, calculates a first value indicative of acceleration of the truck 10 in the first direction and a second value indicative of acceleration of the truck 10 in the second direction.
  • the controller 103 modifies the first value indicative of acceleration in the first direction based on the second value indicative of acceleration in the second direction if the second value falls outside of a pre-defined range.
  • the first value whether modified or not based on whether the second value falls outside or within the pre-defined range, defines a maximum acceleration that cannot be exceeded during the semi-automated driving operation of the truck 10.
  • FIG. 4 An example control algorithm, or process, for the controller 103 is illustrated in Fig. 4 for calculating a first value indicative of acceleration of the truck 10 in the first direction during the most recent manual operation of the truck 10.
  • step 301 a sequence of acceleration values in the first direction from the accelerometer 1103 are collected during the most recent manual operation of the vehicle, wherein the first direction is defined by the direction of travel DT of the truck 10, and stored in memory by the controller 103.
  • Rotation of the travel switch 54 forward and upward will cause the truck 10 to move forward, e.g., power unit first, at a positive acceleration in the power unit first direction proportional to the amount of rotation of the travel switch 54.
  • negative acceleration values are not collected for use in calculating the first value indicative of acceleration of the truck 10 in the first direction during the most recent manual operation of the vehicle.
  • the accelerometer may determine that such movement comprises a positive acceleration.
  • the accelerometer may also determine that braking (speed is decreasing), while the truck 10 is traveling in the power unit first direction, comprises deceleration or negative acceleration.
  • the accelerometer may determine that such movement where the speed is increasing in the forks first direction comprises a negative acceleration.
  • the accelerometer may also determine that braking (speed is decreasing) while the truck 10 is traveling in the forks first direction comprises a positive acceleration.
  • acceleration and deceleration during movement of the truck 10 in the power unit first direction and the forks first direction will be defined as follows: rotation of the travel switch 54 forward and upward causing the truck 10 to move forward, e.g., power unit first, is defined as a positive acceleration (speed is increasing) in the power unit first direction; rotating the travel switch 54 toward the rear and downward causing the truck 10 to move in reverse, e.g., forks first, is defined as a positive acceleration (speed is increasing) in the forks first direction; rotation of the travel switch 54 forward and upward or actuating the brake switch 41 while the truck 10 is moving in the forks first direction causing the truck 10 to decelerate or brake (speed is decreasing) is defined as a negative acceleration or decel
  • negative acceleration values such as occurring during braking in either the power unit first direction or the forks first direction, are not collected for use in calculating the first value indicative of acceleration of the truck 10 in the first direction during the most recent manual operation of the vehicle.
  • both positive acceleration values where the speed of the truck is increasing in either the power unit first or the forks first direction
  • negative acceleration values where the speed of the truck is decreasing in either the power unit first or the forks first direction
  • the absolute value of the negative acceleration values are used in the described equations and calculations set out below. Accordingly, while some embodiments may ignore any negative acceleration data, other embodiments can consider such data by using the absolute value of the negative acceleration data in the described equations and calculations.
  • step 303 the acceleration values in the first direction collected during the most recent manual operation of the truck 10 are filtered with a weighted average equation so as to make maximum outliers less weighted and effect smoothing.
  • Example equation 1, set out below, may be used to filter the collected acceleration values in the first direction to calculate weighted average values based on the collected acceleration values in the first direction from the most recent manual operation of the truck 10.
  • wa x ⁇ i + 1 wa x ⁇ 1 ⁇ g 1 + a x _ i ⁇ m + 1 ⁇ g 2 + a x _ i ⁇ m + 2 ⁇ g 3 + a x _ i ⁇ m + 3 ⁇ g 4 ⁇ g s
  • the first "start” acceleration values in the first direction could comprise less than three or more than three values and the number of members in each subset "m" could likewise comprise less than three or more than three members.
  • the values a x_[(i*m)+1] , a x_[(i*m)+2] , and a x_[(i*m)+3] are used in the calculation of a weighted average value wa x- ( i +1) .
  • "i" can range from 1 to 9, but for purposes of Equation 1, "i” ranges from 1 to 8.
  • the table of Fig. 5 can be arranged as 9 distinct subsets each having 3 elements.
  • a weighted average is calculated according to Equation 1.
  • the example initial arithmetic average and the example 8 weighted averages are shown in Fig. 6 .
  • the subset size of 3 values is merely an example and that utilizing 9 subsets is an example amount as well.
  • a x-wa-max may be selected from any number of initial arithmetic and weighted average values (wa x- i ) calculated.
  • the average values (wa x- i ) calculated during a predetermined time period, e.g., the last ten seconds, may be considered.
  • a predetermined number of initial arithmetic and weighted average values (wa x- i ) calculated, e.g., 25 average values, without taking time into account may be considered.
  • all of the initial arithmetic and weighted average values (wa x- i ) calculated during the entirety of the most recent manual operation of the truck 10 may be considered.
  • the maximum acceleration in the first direction (a x-wa-max ) defines the first value indicative of acceleration of the vehicle in the first direction during the most recent manual operation of the vehicle.
  • a second or a third highest value of the initial arithmetic and weighted average values (wa x- i ) considered may be selected as the maximum acceleration in the first direction a x-wa-max .
  • the set of initial arithmetic and weighted average values (wa x- i ) considered may be averaged to determine the maximum acceleration in the first direction a x-wa-max .
  • Fig. 7 An example control algorithm, or process, for the controller 103 is illustrated in Fig. 7 for calculating a second value indicative of acceleration of the truck 10 in the second direction during the most recent manual operation of the truck 10.
  • step 401 a sequence of acceleration values in the second direction from the accelerometer 1103 are collected, wherein the second direction is defined by the transverse direction TR, see Fig. 1 , and stored in memory by the controller 103.
  • step 403 the collected acceleration values in the second direction collected during the most recent manual operation of the truck 10 are filtered with a weighted average equation so as to make maximum outliers less weighted and effect smoothing.
  • Example equation 3, set out below, may be used to filter the collected acceleration values in the second direction from the most recent manual operation of the truck 10.
  • the first "start" acceleration values in the second direction could comprise less than three or more than three values and the number of members in each subset "m" could likewise comprise less than three or more than three members.
  • a y-wa-max may be selected from the initial arithmetic average or any number of weighted averages (wa y-(i+1) ) calculated.
  • the initial arithmetic and weighted average values (wa y- i ) calculated during a predetermined time period, e.g., the last ten seconds, may be considered.
  • a predetermined number of the initial arithmetic and weighted average values (wa y- i ) calculated e.g., 25 average values, without taking time into account, may be considered.
  • all of the initial arithmetic and weighted average values (wa y- i ) calculated during the entirety of the most recent manual operation of the truck 10 may be considered.
  • three (3) values of the initial arithmetic and weighted averages (wa y- i ) were considered.
  • the maximum acceleration of the vehicle in the second direction (a y-wa-max ) defines the second value indicative of acceleration of the vehicle in the second direction during the most recent manual operation of the vehicle.
  • FIG. 10 An example control algorithm, or process, for the controller 103 is illustrated in Fig. 10 for calculating a maximum acceleration to be used during a next semi-automated driving operation based on the first and second values indicative of acceleration of the truck 10 in the first and second directions during the prior or most recent manual operation of the truck 10.
  • the first value indicative of acceleration of the truck 10 in the first direction is defined by the maximum acceleration in the first direction (a x-wa-max )
  • the second value indicative of acceleration of the truck 10 in the second direction is defined by the maximum acceleration in the second direction (a y-wa-max ).
  • an operator may drive the truck 10 quickly along a generally straight path, but slowly during a turn.
  • step 501 the controller 103 compares the maximum acceleration in the second direction (a y-wa-max ) to empirically determined ranges set out in a lookup table stored in memory to determine if a correction to the maximum acceleration in the first direction (a x-wa-max ) is appropriate.
  • the maximum acceleration in the second direction (a y-wa-max ) can be used to correct, or adjust, the calculated maximum acceleration in the first direction a x-wa-max when determining the maximum acceleration for the next semi-automated driving operation.
  • the maximum acceleration in the second direction (a y-wa-max ) is likely indicative of the operator's evaluation of the stability of the truck 10 and its current load. If the maximum acceleration in the second direction is greater than a first empirically derived value or within an empirically derived "high acceleration" range, then that can indicate the operator believes the load is relatively stable and the maximum acceleration for the next semi-automated driving operation can be increased.
  • the maximum acceleration in the second direction is less than a second empirically derived value or falls within an empirically defined "low acceleration" range, then that can indicate the operator believes the load could be unstable even though the calculated maximum acceleration in the first direction is relatively high. Thus, in this second instance, the maximum acceleration for the next semi-automated driving operation can be decreased. If the maximum acceleration in the second direction is inbetween the first and the second empirically derived values or within an empirically defined medium range, then no correction, or adjustment, of the maximum acceleration for the next semi-automated driving operation is made.
  • High, low and medium ranges can be empirically determined for a particular vehicle in a controlled environment where the vehicle is operated at various maximum accelerations in the first and second directions, various high, low and medium ranges of differing values are created and, using the maximum acceleration values in the second direction, correction factors are determined and used to adjust the maximum acceleration values in the first direction.
  • Preferred high, low and medium ranges, which allow for an optimum acceleration in the first direction yet allow the truck to carry and support loads in a stable manner are selected.
  • Fig. 11 An exemplary simulated lookup table based on non-real values is set out in Fig. 11 , which table contains three separate ranges for the maximum acceleration in the second direction (a y-wa-max ). If the maximum acceleration in the second direction falls within either the high or the low acceleration range depicted in the lookup table of Fig. 11 , a corresponding correction factor is used in determining the maximum acceleration to be used during the next semi-automated driving operation of the truck 10. If the maximum acceleration in the second direction falls within the middle acceleration range (or mid-range) depicted in the lookup table of Fig. 11 , no correction factor corresponding to the maximum acceleration in the second direction is used in determining the maximum acceleration for use during the next semi-automated driving operation of the truck 10.
  • the controller 103 communicates with the traction motor controller 106 so as to limit the maximum positive acceleration (speed is increasing) of the truck 10 in the first direction during a next semi-automated or remote control operation to 4.01 m/s 2 .
  • controller 103 may calculate a first value indicative of only deceleration of the vehicle in the first direction during the most recent manual operation of the vehicle using equations 1 and 2 set out above, wherein the absolute value of each deceleration value collected from the most recent manual operation of the vehicle is used in calculating the first value using equations 1 and 2. Deceleration values corresponding to emergency breaking, which deceleration values may have very high magnitudes, are ignored in calculating the first value indicative of deceleration of the vehicle.
  • acceleration values in the first and second directions can be calculated in alternative manners.
  • acceleration in the direction of travel DT or first direction can be determined using a velocity sensor, wherein a velocity sensor may be provided on a traction motor controller.
  • the controller 103 may differentiate the velocity or speed values to calculate acceleration values.
  • Acceleration may also be derived from the angular position of the travel switch 54 relative to a home position, which grip 54, as noted above, controls the acceleration/braking of the truck 10.
  • a truck acceleration is chosen from the lookup table which corresponds specific grip angular position values with specific acceleration values. Maximum velocity values may also be provided by the lookup table based on grip angular positions.
  • the table of Fig. 5 represents a monitored drive parameter during a single manual operation.
  • embodiments also contemplate monitoring and storing drive parameter data for more than a single manual operation of the truck 10.
  • data for one or more drive parameters can be monitored and stored for any number of the most recent manual operations.
  • the controller 103 can define a beginning and an ending to each manual operation so that the data pertaining to each manual operation can remain segregated from data pertaining to a different manual operation.
  • a particular manual operation can be considered to begin when an operator is on the truck 10, such as indicated by a presence sensor 58, and moves the truck 10 with at least a minimum speed.
  • a particular manual operation can be considered to begin when a drive signal is generated via the travel switch 54 and not via the remote control device 70. It is still further contemplated that a particular manual operation can be considered to begin when the operator is located outside of the operator's station 30 and causes the truck to move via activation of the drive control switch 140 located near the top of the second end section 14B of the power unit 14 of the truck 10.
  • the particular manual operation can be considered to end when the truck 10 remains stationary for at least a predetermined time period. Alternatively, the particular manual operation can be considered to end when the truck 10 is stopped and the operator exits the truck. Alternatively, the particular manual operation can be considered to end when the operator initiates a semi-automated driving operation via the remote control device 70. Also, a manual operation can be considered to end when an operator exits the platform of the truck 10 even when the truck 10 is still moving.
  • the monitored and stored data (whether from a single manual operation or from multiple manual operations) can then be used for controlling implementation of a subsequently-occurring semi-automated driving operation of the truck 10.
  • Clearing, or resetting, the stored data collected during one or more recent manual operations can be beneficial during or after certain driving operations of the truck 10.
  • data for monitored drive parameters collected and stored while a first pallet and items carried by or on the first pallet are being transported by the truck 10 may not be relevant to implementing semi-automated driving operations of the truck 10 once that first pallet is offloaded from the truck 10 and a new empty pallet is acquired.
  • the previously monitored and stored data about the one or more drive parameters during that current manual operation of the truck 10 can be discarded or, reset, so that only new monitored data about the one or more drive parameters is used to implement subsequently occurring semi-automated driving operations of the truck 10.
  • only the new monitored data about the one or more drive parameters collected during the current manual operation or the manual operation just before the subsequently occurring semi-automated driving operation is used to implement the subsequently occurring semi-automated driving operation and any data from prior manual operations occurring before the current manual operation or the manual operation just before the subsequently occurring semi-automated driving operation is ignored.
  • a typical stock picking operation involves an operator filling orders from available stock items that are located in storage areas provided along one or more aisles of a warehouse or distribution center.
  • the operator drives the truck 10 between various pick locations where item(s) I are to be picked, which are typically loaded on one or more pallets P provided on the forks 16 of the load handling assembly 12, see Fig. 13 , wherein the pallet P and the items I define a load L on or carried by the forks 16.
  • a roll cage, a freezer box or other special container could be provided on the forks 16 of the load handling assembly, wherein the roll cage, freezer box or other special container and picked items loaded on the roll cage, freezer box or other special container define a load on or carried by the forks 16.
  • the operator may drive the truck 10 manually by using the steering handle 52 and the travel switch 54, as noted above, or operate the truck 10 in the remote control mode using the remote control device 70 for semi-automated control of the vehicle.
  • the controller 103 can analyze the driving operations of the truck 10 to automatically determine a sequence of operations, or a pattern, that is likely indicative of the start of a new pick operation. Under these circumstances, the controller 103 can then reset, or discard, the collected data about the monitored one or more drive parameters that occurred during the current manual operation.
  • the term "current manual operation” can refer to a manual operation that is currently taking place
  • the term “most recent manual operation” can refer to a manual operation occurring immediately prior to the current manual operation that is still taking place
  • the term “previous manual operation” can refer to a manual operation occurring prior to the most-recent manual operation
  • the term “next manual operation” can refer to a manual operation occurring subsequent to the current manual operation.
  • Fig. 12 depicts a flowchart of an example algorithm for resetting stored data related to a first monitored vehicle drive parameter based on detecting the start of the pick operation, according to embodiments of this disclosure.
  • step 1201 includes the controller 103 monitoring the first vehicle drive parameter during a manual operation of the truck 10 by an operator, i.e., a current manual operation.
  • the monitored first vehicle drive parameter can be related to acceleration of the truck 10 in a first direction.
  • the controller 103 can store data related to the monitored first vehicle drive parameter.
  • the stored data can be individual acceleration values of the truck 10 occurring during a manual operation of the truck 10.
  • the stored data can include a calculated value, i.e., maximum acceleration of the truck 10 in the first direction, based on the individual acceleration values that is used in a subsequently occurring semi-automated operation of the truck 10.
  • the controller 103 is configured to use the stored data for implementing a semi-automated driving operation of the truck 10 that occurs subsequent to the manual operation of the truck 10 referred to in step 1201.
  • the controller detects operation of the truck 10 indicative of a start of a pick operation occurring during the current manual operation of the truck 10.
  • the controller 103 in step 1207, can then reset the stored data related to the monitored first vehicle drive parameter. Resetting the stored data can include clearing, or discarding, the stored data collected during the current manual operation of the truck 10 from the start of the current manual operation until detection and start of the new or most recent pick operation.
  • the controller 103 can resume monitoring of the first vehicle drive parameter after resetting the stored data. This newly acquired data related to monitoring of the first drive parameter can then be used for implementing a subsequently occurring semi-automated driving operation of the vehicle.
  • the detected operation of the truck 10 indicative of a start of a pick operation comprises detecting a transition from the truck 10 being manually driven with a raised load handling assembly 12 to the truck 10 being stopped with a lowered load handling assembly 12, see Fig. 13 .
  • the controller 103 detects that the truck 10 which was moving by manual operation has now stopped and also that the load handling assembly 12, which was in a raised position, has been lowered.
  • the controller 103 can determine if the truck 10 is moving or stopped and the distance that the truck has travelled via signals from the accelerometer 1103 or motor angular velocity signals from the traction controller 106.
  • the controller 103 can determine the height of the load handling assembly 12, i.e., whether the load handling assembly is in a raised position or in a home or lowermost position, relative to ground from signals generated by one or more of height sensors or switches alone or in combination with the load sensor LS.
  • the raised position of the load handling assembly 12 would be any position above the lowermost position.
  • This sequence of operations is particularly indicative of the start of a new pick operation when the raised load handling assembly 12 bears a substantially non-zero load and the lowered load handling assembly 12 bears a substantially zero load.
  • the controller 103 can determine the weight of a load on the forks 16 from signals generated by the load sensor LS. In Fig.
  • the detected operation of the truck 10 indicative of a start of a pick operation comprises detecting the transition from the truck 10 being manually driven with a raised load handling assembly 12 to the truck 10 being stopped with a lowered load handling assembly 12, as illustrated in Fig. 13 , and detecting movement of the truck 10 for a distance at least equal to a length of a load L on the forks 16 after the forks 16 are lowered, see Fig. 14 .
  • the forks 16 have a length only slightly greater than the length of the pallet P.
  • a truck may have forks with an extended length such that the forks can carry concurrently more than one conventionally sized pallet.
  • the forks may carry only one pallet at the end of the forks or two or more pallets along the entire length of the forks.
  • a point-laser or an ultrasonic device could be provided in the second end section 14B for sensing a distance from the second end section 14B to a pallet, such as being positioned at the end of the forks.
  • the truck 10 may move a distance equal to length of a load L by moving only the length of a single pallet when only a single pallet is provided on the forks or a distance equal to the length of two or more pallets when two or more pallets are provided on the forks.
  • the above sequence of operations is even more indicative of a new pick operation when the detected operation of the truck 10 further comprises determining that the operator drives the truck 10 with the lowered load handling assembly 12 while it is bearing a substantially zero load. Movement of the truck 10 by a distance at least equal to the length of a load carried by the forks is relevant (as noted above) but driving the truck 10 for a distance greater than the length of the forks 16 without a load is even more indicative of commencement of a new pick operation.
  • the detected operation of the truck 10 indicative of a start of a pick operation comprises detecting the transition from the truck 10 being manually driven with a raised load handling assembly 12 to the truck 10 being stopped with a lowered load handling assembly 12, as illustrated in Fig. 13 , detecting movement of the truck 10 for a distance at least equal to a length of the load L on the forks 16 after the forks 16 are lowered, as illustrated in Fig. 14 , determining that the operator has driven the truck 10 with the lowered load handling assembly 12 while it is bearing a substantially zero load, and detecting a transition from the truck 10 moving with the lowered load handling assembly 12 to the truck 10 being stopped with the load handling assembly 12 newly raised.
  • the truck 10 has travelled for some distance with essentially an empty and lowered load handling assembly 12 and has now stopped wherein, after stopping, the operator subsequently raises the load handling assembly 12.
  • a load less than a predetermined amount but more than a substantially zero load e.g., the weight of an empty pallet, a roll cage, a freezer box or other special container
  • this sequence of operations is indicative of the start of a new pick operation.
  • the predetermined amount might comprise the weight of a conventional empty pallet, roll cage, freezer box or other special container.
  • the truck 10 had a substantially non-zero load (i.e., it was carrying a pallet P with items I) and the truck 10 then stopped, lowered the pallet P and the items I on the pallet P, wherein the pallet P and the items I define the load L on the forks 16, and proceeded to move with the lowered load handling assembly 12.
  • that lowered load handling assembly 12 supported essentially no load whatsoever and, therefore, was bearing a substantially zero load while the truck 10 was moving.
  • the truck 10 stopped and raised the load handling assembly 12 such that the now-raised load handling assembly 12 was bearing a load but the load was less than the predetermined amount.
  • the controller 103 can detect from the load sensor LS that the previously-lowered load handling assembly 12 was empty and bearing a substantially zero load but is now bearing at least the weight of a pallet which is more than the substantially zero load.
  • the weight of the pallet P by itself is less than the weight of the pallet in addition to one or more items I on the pallet P; thus the controller 103 determines from signals generated by the load sensor LS that the load handling assembly 12 is bearing a load that is more than the substantially zero load but is less than that of a loaded, or semi-loaded, pallet.
  • the controller 103 may be detecting that the load bearing assembly 12 is bearing a load equal to the weight of a conventional empty pallet.
  • the controller 103 can then reset the stored data related to the monitored first vehicle drive parameter.
  • the stored data can include data related to a monitored second vehicle drive parameter during the manual operation of the truck 10 by the operator, wherein the controller 103 is configured to use the stored data of the monitored first and the second vehicle drive parameter for implementing the semi-automated driving operation of the truck 10 subsequent to the manual operation of the truck 10.
  • the controller 103 can then reset the stored data related to the monitored first vehicle drive parameter and also the monitored second vehicle drive parameter.
  • the controller 103 can use Equations 1-5, set out above, and the stored data related to the monitored first and second vehicle drive parameters collected since the most recent picking operation began while ignoring data collected prior to the most recent picking operation to calculate a maximum acceleration in the first direction a x-wa-max and a maximum acceleration in the second direction (a y-wa-max ) and from those calculations determine a maximum acceleration max.acc to be used in the first direction during the next semi-automated driving operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Claims (16)

  1. Un procédé d'actionnement d'un véhicule de manutention de matériaux (10) comprenant : la surveillance, par un dispositif de commande (103, 106, 112), d'un premier paramètre de conduite de véhicule au cours d'un actionnement manuel du véhicule (10) par un opérateur, caractérisé en ce qu'il comprend en outre :
    la conservation en mémoire, par le dispositif de commande (103, 106, 112), de données relatives au premier paramètre de conduite de véhicule surveillé, le dispositif de commande (103, 106, 112) étant configuré de façon à utiliser les données conservées en mémoire pour la mise en oeuvre d'une opération de conduite semi-automatisée du véhicule subséquente à l'actionnement manuel du véhicule (10), la détection, par le dispositif de commande (103, 106, 112), d'un actionnement du véhicule (10) indicatif d'un début d'une opération de prélèvement se déroulant au cours de l'actionnement manuel du véhicule (10), et en fonction de la détection du début de l'opération de prélèvement, la réinitialisation, par le dispositif de commande (103, 106, 112), des données conservées en mémoire relatives au premier paramètre de conduite de véhicule surveillé.
  2. Le procédé selon la Revendication 1, comprenant : la reprise, par le dispositif de commande (103, 106, 112), de la surveillance du premier paramètre de conduite de véhicule après la réinitialisation des données conservées en mémoire.
  3. Le procédé selon l'une quelconque des Revendications 1 ou 2, où l'actionnement détecté du véhicule comprend une transition d'une conduite manuelle du véhicule avec un ensemble de manipulation de charge soulevé vers un état arrêté du véhicule avec un ensemble de manipulation de charge abaissé,
    éventuellement où l'ensemble de manipulation de charge soulevé supporte une charge sensiblement non nulle,
    et/ou éventuellement où l'ensemble de manipulation de charge abaissé supporte une charge sensiblement nulle,
    et/ou éventuellement où l'ensemble de manipulation de charge comprend une ou plusieurs fourches et l'actionnement détecté du véhicule comprend en outre un déplacement du véhicule.
  4. Le procédé selon la Revendication 3, où l'ensemble de manipulation de charge comprend une ou plusieurs fourches et l'actionnement détecté du véhicule comprend en outre un déplacement du véhicule, et où le déplacement est pour une distance au moins égale à une longueur d'une charge portée par les fourches,
    éventuellement où le déplacement du véhicule pour la distance au moins égale à la longueur de la charge portée par les fourches a lieu après la transition du véhicule vers l'état arrêté avec l'ensemble de manipulation de charge abaissé.
  5. Le procédé selon l'une quelconque des Revendications 1 à 4, où l'actionnement détecté du véhicule (10) comprend en outre la conduite du véhicule (10) avec l'ensemble de manipulation de charge abaissé (12),
    éventuellement où l'ensemble de manipulation de charge abaissé supporte une charge sensiblement nulle.
  6. Le procédé selon l'une quelconque des Revendications 3 à 5, où l'actionnement détecté du véhicule (10) comprend en outre une transition d'un déplacement du véhicule (10) avec l'ensemble de manipulation de charge abaissé (12) vers un état arrêté du véhicule (10) avec un ensemble de manipulation de charge subséquemment soulevé,
    éventuellement où l'ensemble de manipulation de charge subséquemment soulevé supporte une charge inférieure à une quantité prédéterminée mais supérieure à la charge sensiblement nulle.
  7. Le procédé selon la Revendication 1, où l'actionnement détecté du véhicule (10) comprend : une première transition d'une conduite manuelle du véhicule (10) avec un ensemble de manipulation de charge soulevé (12) vers un état arrêté du véhicule (10) avec un ensemble de manipulation de charge abaissé (12), le déplacement du véhicule (10) avec l'ensemble de manipulation de charge abaissé (12) pour une distance au moins égale à une longueur d'une charge portée par l'ensemble de manipulation de charge, le déplacement ayant lieu après la première transition, et une deuxième transition d'un déplacement du véhicule (10) avec l'ensemble de manipulation de charge abaissé (12) vers un état arrêté du véhicule (10) avec l'ensemble de manipulation de charge nouvellement soulevé,
    éventuellement où au cours de la deuxième transition l'ensemble de manipulation de charge abaissé supporte une charge sensiblement nulle et l'ensemble de manipulation de charge nouvellement soulevé supporte une charge inférieure à une quantité prédéterminée mais supérieure à la charge sensiblement nulle.
  8. Le procédé selon l'une quelconque des Revendications 1 à 7, comprenant en outre : la surveillance, par le dispositif de commande (103, 106, 112), d'un deuxième paramètre de conduite de véhicule au cours de l'actionnement manuel du véhicule (10) par l'opérateur, et la conservation en mémoire, par le dispositif de commande (103, 106, 112), de données relatives au deuxième paramètre de conduite de véhicule surveillé, le dispositif de commande (103, 106, 112) étant configuré de façon à utiliser les données conservées en mémoire des premier et deuxième paramètres de conduite de véhicule surveillés pour la mise en oeuvre de l'opération de conduite semi-automatisée du véhicule (10) subséquente à l'actionnement manuel du véhicule (10).
  9. Un système d'actionnement d'un véhicule de manutention de matériaux (10) comprenant : une mémoire conservant en mémoire des instructions exécutables, et un processeur en communication avec la mémoire, caractérisé en ce que l'exécution des instructions exécutables par le processeur amène le processeur à : surveiller un premier paramètre de conduite de véhicule au cours d'un actionnement manuel du véhicule (10) par un opérateur, conserver en mémoire des données relatives au premier paramètre de conduite de véhicule surveillé, le dispositif de commande (103, 106, 112) étant configuré de façon à utiliser les données conservées en mémoire pour la mise en oeuvre d'une opération de conduite semi-automatisée du véhicule (10) subséquente à l'actionnement manuel du véhicule (10), détecter un actionnement du véhicule (10) indicatif d'un début d'une opération de prélèvement se déroulant au cours de l'actionnement manuel du véhicule (10), et réinitialiser les données conservées en mémoire relatives au premier paramètre de conduite de véhicule surveillé en fonction de la détection du début de l'opération de prélèvement.
  10. Le système selon la Revendication 9, où l'exécution des instructions exécutables par le processeur amène le processeur à : reprendre la surveillance du premier paramètre de conduite de véhicule après la réinitialisation des données conservées en mémoire.
  11. Le système selon la Revendication 9 ou 10, où l'actionnement détecté du véhicule comprend une transition d'une conduite manuelle du véhicule avec un ensemble de manipulation de charge soulevé vers un état arrêté du véhicule avec un ensemble de manipulation de charge abaissé,
    éventuellement où l'ensemble de manipulation de charge soulevé supporte une charge sensiblement non nulle,
    et/ou éventuellement où l'ensemble de manipulation de charge abaissé supporte une charge sensiblement nulle,
    et/ou éventuellement où l'ensemble de manipulation de charge comprend une ou plusieurs fourches et l'actionnement détecté du véhicule comprend en outre un déplacement du véhicule.
  12. Le système selon la Revendication 11, où l'ensemble de manipulation de charge comprend une ou plusieurs fourches et l'actionnement détecté du véhicule comprend en outre un déplacement du véhicule, et où le déplacement est pour une distance au moins égale à une longueur d'une charge portée par les fourches (16),
    éventuellement où le déplacement du véhicule pour la distance au moins égale à la longueur de la charge portée par les fourches a lieu après la transition du véhicule vers l'état arrêté avec l'ensemble de manipulation de charge abaissé.
  13. Le système selon l'une quelconque des Revendications 9 à 12, où l'actionnement détecté du véhicule (10) comprend en outre la conduite du véhicule (10) avec l'ensemble de manipulation de charge abaissé (12),
    éventuellement où l'ensemble de manipulation de charge abaissé supporte une charge sensiblement nulle.
  14. Le système selon l'une quelconque des Revendications 11 à 13, où l'actionnement détecté du véhicule (10) comprend en outre une transition d'un déplacement du véhicule (10) avec l'ensemble de manipulation de charge abaissé (12) vers un état arrêté du véhicule (10) avec un ensemble de manipulation de charge subséquemment soulevé,
    éventuellement où l'ensemble de manipulation de charge subséquemment soulevé supporte une charge inférieure à une quantité prédéterminée mais supérieure à la charge sensiblement nulle.
  15. Le système selon la Revendication 9, où l'actionnement détecté du véhicule (10) comprend : une première transition d'une conduite manuelle du véhicule (10) avec un ensemble de manipulation de charge soulevé (12) vers un état arrêté du véhicule (10) avec un ensemble de manipulation de charge abaissé (12), le déplacement du véhicule (10) avec l'ensemble de manipulation de charge abaissé (12) pour une distance au moins égale à une longueur d'une charge portée par l'ensemble de manipulation de charge, le déplacement ayant lieu après la première transition, et une deuxième transition d'un déplacement du véhicule (10) avec l'ensemble de manipulation de charge abaissé (12) vers un état arrêté du véhicule (10) avec l'ensemble de manipulation de charge nouvellement soulevé,
    éventuellement où au cours de la deuxième transition l'ensemble de manipulation de charge abaissé supporte une charge sensiblement nulle et l'ensemble de manipulation de charge nouvellement soulevé supporte une charge inférieure à une quantité prédéterminée mais supérieure à la charge sensiblement nulle.
  16. Le système selon l'une quelconque des Revendications 9 à 15, où l'exécution des instructions exécutables par le processeur amène le processeur à : surveiller un deuxième paramètre de conduite de véhicule au cours de l'actionnement manuel du véhicule (10) par l'opérateur, et conserver en mémoire des données relatives au deuxième paramètre de conduite de véhicule surveillé, le dispositif de commande (103, 106, 112) étant configuré de façon à utiliser les données conservées en mémoire des premier et deuxième paramètres de conduite de véhicule surveillés pour la mise en oeuvre de l'opération de conduite semi-automatisée du véhicule (10) subséquente à l'actionnement manuel du véhicule (10).
EP21720032.8A 2020-03-18 2021-03-15 Réinitialisation de données stockées associées à un paramètre d'entraînement surveillé sur la base d'un début détecté d'opération de prise de livraison Active EP4121386B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202062991217P 2020-03-18 2020-03-18
PCT/US2021/022281 WO2021188402A1 (fr) 2020-03-18 2021-03-15 Réinitialisation de données stockées associées à un paramètre d'entraînement surveillé sur la base d'un début détecté d'opération de prise de livraison

Publications (2)

Publication Number Publication Date
EP4121386A1 EP4121386A1 (fr) 2023-01-25
EP4121386B1 true EP4121386B1 (fr) 2024-05-01

Family

ID=75581595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21720032.8A Active EP4121386B1 (fr) 2020-03-18 2021-03-15 Réinitialisation de données stockées associées à un paramètre d'entraînement surveillé sur la base d'un début détecté d'opération de prise de livraison

Country Status (7)

Country Link
EP (1) EP4121386B1 (fr)
KR (1) KR20220155314A (fr)
CN (1) CN114761350A (fr)
AU (1) AU2021239825A1 (fr)
CA (1) CA3161726A1 (fr)
MX (1) MX2022006498A (fr)
WO (1) WO2021188402A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4227840B2 (ja) * 2003-05-29 2009-02-18 三菱重工業株式会社 自走式産業機械の走行制御装置
US8452464B2 (en) * 2009-08-18 2013-05-28 Crown Equipment Corporation Steer correction for a remotely operated materials handling vehicle
US9522817B2 (en) * 2008-12-04 2016-12-20 Crown Equipment Corporation Sensor configuration for a materials handling vehicle
EP2533119B1 (fr) * 2009-07-02 2017-02-08 Crown Equipment Corporation Appareil de commande a distance d'un véhicule de manipulation des matériaux
US9547945B2 (en) * 2011-03-18 2017-01-17 The Raymond Corporation Integration of an autonomous industrial vehicle into an asset management system
CN105060177A (zh) * 2015-08-12 2015-11-18 山东建筑大学 一种小型堆垛机
EP3637738B1 (fr) * 2016-01-22 2023-05-03 The Raymond Corporation Systèmes et procédés pour un réseau de véhicule de manipulation de matériau
CN105735166B (zh) * 2016-02-24 2017-11-07 同济大学 一种交通路锥自动收放车
US9718661B1 (en) * 2016-07-06 2017-08-01 Hyster-Yale Group, Inc. Automated load handling for industrial vehicle
US10233064B2 (en) * 2016-07-06 2019-03-19 Hyster-Yale Group, Inc. Automated load handling for industrial vehicle
US10119272B1 (en) * 2017-06-12 2018-11-06 Amazon Technologies, Inc. Interference frames
CN113377093B (zh) * 2019-01-15 2024-04-30 北京百度网讯科技有限公司 自动驾驶汽车的远程控制方法和装置

Also Published As

Publication number Publication date
CN114761350A (zh) 2022-07-15
KR20220155314A (ko) 2022-11-22
EP4121386A1 (fr) 2023-01-25
CA3161726A1 (fr) 2021-09-23
WO2021188402A1 (fr) 2021-09-23
MX2022006498A (es) 2022-07-04
AU2021239825A1 (en) 2022-05-26

Similar Documents

Publication Publication Date Title
US20240094728A1 (en) Adaptive acceleration for materials handling vehicle
US8725317B2 (en) Multiple detection zone supplemental remote control system for a materials handling vehicle
EP3410248B1 (fr) Détection à zones multiples pour véhicules de manutention de matériaux
US11919761B2 (en) Based on detected start of picking operation, resetting stored data related to monitored drive parameter
US20100145551A1 (en) Apparatus for remotely controlling a materials handling vehicle
KR20160028508A (ko) 물류 취급 차량용 조향 제어 조작들
US20110046813A1 (en) Steer correction for a remotely operated materials handling vehicle
KR20200008046A (ko) 물류 취급 차량용 물체 트래킹 및 조향 조작
EP4442634A2 (fr) Accélération adaptative pour véhicule de manipulation de matériaux
EP4121386B1 (fr) Réinitialisation de données stockées associées à un paramètre d'entraînement surveillé sur la base d'un début détecté d'opération de prise de livraison
US12066844B2 (en) Adaptive acceleration for materials handling vehicle
CA3163201A1 (fr) Acceleration adaptative pour vehicule de manipulation de materiaux

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221018

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230529

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20231030

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602021012727

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20240501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240501

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240802

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240902

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1682144

Country of ref document: AT

Kind code of ref document: T

Effective date: 20240501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240801