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1.发明申请公开(公告)号：US20250096663A1
公开(公告)日：2025-03-20
申请号：US18967110
申请日：2024-12-03
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Brian M. Perreault , Yuhong Huang
Abstract: A system and method for holding position of a mover in an independent cart system includes receiving a current feedback signal corresponding to a current present in at least one coil for a linear drive system in the independent cart system. A motion command for the mover is received, where the motion command defines a desired position along a track of the independent cart system to which the mover is to travel. An electromagnetic pinning control mode is disabled while controlling operation of the at least one mover to the desired position and enabled when the at least one mover is at the desired position.
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2.发明公开公开(公告)号：US20240109735A1
公开(公告)日：2024-04-04
申请号：US17956462
申请日：2022-09-29
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Patrick E. Ozimek , Yuhong Huang , David W. Demers , Brian M. Perreault , Daniel I. Lanier
CPC classification number: B65G54/02 , B60L13/03 , B60L13/10 , B60L2200/26 , B65G2203/0283
Abstract: A system and method for detecting integrity of a position for a mover in an independent cart system, includes receiving multiple first position feedback signals at a first processing core and receiving multiple second position feedback signals at a second processing core. Each of the first and second position feedback signals are generated by first and second position sensors, respectively, by detecting a magnet array mounted on the mover. A first value of the position of the mover is generated with the first processing core responsive to the first position feedback signals, and a second value of the position of the mover is generated with the second processing core responsive to the second position feedback signals. The first and second values of the position of the mover are compared with either the first or second processing core to verify operation of the first and second position sensors.
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3.发明申请公开(公告)号：US20210088081A1
公开(公告)日：2021-03-25
申请号：US16575630
申请日：2019-09-19
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Yuhong Huang , Brian M. Perreault , Tracy M. Clark
Abstract: A motion control system for an independent cart system provides for a minimum spacing between movers that is less than the width of a coil used to control motion of the movers. Blocks are statically or dynamically defined along the length of each track segment, where the width of a block is less than the width of a coil along the same track segment. Dividing the width of each coil into smaller block widths provides for an improved resolution of control for each mover. The blocks may also establish collision prevention between movers without requiring knowledge of the position of adjacent movers. Each block is assigned to a single mover at a time, but multiple blocks may be assigned to a single mover. A mover is permitted to only move within those blocks assigned to it and cannot have blocks assigned to it that are already assigned to another mover.
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4.发明申请公开(公告)号：US20200166389A1
公开(公告)日：2020-05-28
申请号：US16201464
申请日：2018-11-27
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Yuhong Huang , Brian M. Perreault , Eric J. Wildi
Abstract: A system to automatically calibrate gains and/or offsets for each position feedback signal in order to reduce variations between position feedback signals for each sensor in a linear drive system is disclosed. As a mover travels along a track segment, the segment controller records the position feedback signal output from each position sensor corresponding to a magnet on the mover passing the position sensor. The segment controller determines peak values for each position feedback signal and compares the peak values against a target peak value. The segment controller then adjusts a gain value for each sensor by a ratio of the target peak value to a measured peak value. The segment controller periodically monitors the position feedback values generated by one mover as it travels along the track segment and automatically updates the sensor gains as previously described.
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公开(公告)号：US20210261351A1
公开(公告)日：2021-08-26
申请号：US16802095
申请日：2020-02-26
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Yuhong Huang , Brian M. Perreault
Abstract: An independent mover transport system and related method. The system comprises a mover having an axis, and a track. The track includes first and second track segments, and a controller operative to drive a first coil of the first track segment to control movement of the mover along the first track segment towards the second track segment. The controller is further operative to define a first zone for the first track segment, define a second zone for the first track segment, drive the first coil to control movement of the mover with the first set of controller gain values when the location of the axis is in the first zone, and drive the first coil to control movement of the mover with second set of controller gain values when the location of the axis is in the second zone.
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Patent Agency Ranking
公开(公告)号：US20250128897A1
公开(公告)日：2025-04-24
申请号：US18492082
申请日：2023-10-23
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Haihui Lu , Zhuo Liu , Hao Yang , Yuhong Huang , Azeddine Choumach , Brian M. Perreault , Daniel I. Lanier , Robert H. Schmidt
IPC: B65G67/22
Abstract: An independent cart system includes multiple track segments, multiple movers, multiple position sensors, and a controller. Each track segment includes multiple coils along a length of the track segment and a segment controller operative to selectively energize the coils to generate an electromagnetic field. Each mover includes a magnet array having multiple magnets, where the magnet array generates a magnetic field that interacts with the electromagnetic field generated by the coils to propel the mover along the track segments. The position sensors are spaced apart along the length of each track segment and generate a position feedback signal with a waveform as a function of the magnetic field generated by the magnet array on each mover. The controller is operative to receive the position feedback signal from each position sensor and to determine a unique identifier for each mover as a function of the waveform of the position feedback signal.
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公开(公告)号：US20250128895A1
公开(公告)日：2025-04-24
申请号：US18492131
申请日：2023-10-23
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Zhuo Liu , Hao Yang , Haihui Lu , Yuhong Huang , Brian M. Perreault , Azeddine Choumach , Daniel I. Lanier , Robert H. Schmidt
IPC: B65G54/02
Abstract: A system for identifying movers in an independent cart system includes movers having at least one magnet and sensors generating a feedback signal responsive to detecting a magnetic field from the magnet as each mover travels past the sensor. A memory stores an identifier and a corresponding digital fingerprint for each mover. The stored digital fingerprint is generated as a function of the magnetic field generated by the magnet on each mover. A controller receives the feedback signal from each sensor and determines a run-time digital fingerprint for each mover corresponding to the magnetic field generated by the magnet on each mover as a function of the feedback signal. The run-time digital fingerprint is matched to one of the stored digital fingerprints, and the identifier, corresponding to the stored digital fingerprint matching the run-time fingerprint, is read from memory.
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公开(公告)号：US20240059327A1
公开(公告)日：2024-02-22
申请号：US17889069
申请日：2022-08-16
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Yuhong Huang , Brian M. Perreault , Peter Eric Malkowski , Jatin P. Bhatt
Abstract: A system for controlling movers in a linear drive system includes a plurality of movers and a track providing segments along which the movers may travel and holding driver coils and a segment controller controlling the driver coils. Some of the segments having switches forming branches between segments. A central controller communicates operates with the segment controllers to route the movers along the track by distributing routing decisions for a given mover to a segment controller for a track on which a given mover is currently traveling.
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公开(公告)号：US11780333B2
公开(公告)日：2023-10-10
申请号：US17401544
申请日：2021-08-13
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Yuhong Huang , Brian M. Perreault
CPC classification number: B60L3/0015 , B60L15/005 , B60L15/38 , B60L13/03
Abstract: An improved system for preventing collisions between movers while improving throughput in a linear drive system utilizes a continually variable vehicle length for each mover. A vehicle length is assigned to each mover, where the vehicle length is a minimum track length required by the vehicle to avoid physically contacting a neighboring vehicle along the track. The vehicle length for each mover is then determined for each location along the track based on both the track geometry and the mover geometry. The vehicle length is continually variable along the length of the track allowing movers to be positioned as close together as possible for each location along the track based on both the track geometry and the mover geometry. The continually variable vehicle length provides collision prevention between movers while increasing throughput of movers along segments of the track that do not require the largest spacing between movers.
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10.发明授权公开(公告)号：US12176783B2
公开(公告)日：2024-12-24
申请号：US17810156
申请日：2022-06-30
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Brian M. Perreault , Yuhong Huang
Abstract: A system and method for holding position of a mover in an independent cart system includes receiving a current feedback signal corresponding to a current present in at least one coil for a linear drive system in the independent cart system. A motion command for the mover is received, where the motion command defines a desired position along a track of the independent cart system to which the mover is to travel. An electromagnetic pinning control mode is disabled while controlling operation of the at least one mover to the desired position and enabled when the at least one mover is at the desired position.
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