Of Moving Article Patents (Class 702/175)
  • Patent number: 9945060
    Abstract: Disclosed is a method of operating a laundry treating appliance having a treating chamber that receives a laundry load for treatment according to a cycle of operation. The method includes determining the size of the laundry load in the treating chamber; supplying a predetermined amount of liquid to the treating chamber based on the determined load size; applying mechanical energy to the laundry treating chamber by driving a clothes mover with an electric motor; determining a difference between an in-rush current to the electric motor and a steady-state current of the electric motor during the applying of the mechanical energy; and determining a laundry load type of the laundry load based on the determined difference.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: April 17, 2018
    Assignee: Whirlpool Corporation
    Inventors: Hirak Chanda, Kaustav Ghosh, Andrew J. Leitert, Karl David Mcallister, Amy L. Rapson, Jon D. Strait, Yingqin Yuan
  • Patent number: 9021876
    Abstract: A method for determining a change in a mass of a fan impeller. The method includes inducing a torque to the fan impeller and determining a change in the angular speed of the fan impeller, induced by the torque. A value for a first parameter representing a present mass of the fan impeller is determined on the basis of the change in the angular speed and the torque. The change in the mass is then determined on the basis of the first parameter and a second parameter representing the reference mass of the fan impeller.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: May 5, 2015
    Assignee: ABB Oy
    Inventors: Jussi Tamminen, Tero Ahonen, Jero Ahola, Markku Niemelä
  • Publication number: 20150100273
    Abstract: The various embodiments herein provide an automatic vehicle load monitoring system and navigation monitoring system. The system comprises a weight sensing device attached to a base of a vehicle, and wherein the weight sensing device is a load cell, a compression spring attached to the weight sensing device and to a suspension spring of the vehicle, a voltage conversion unit attached to the weight sensing device to convert an output resistance of the load cell into a voltage, an automatic vehicle location (AVL) system connected to the voltage conversion unit to receive the output voltage from the voltage conversion unit and a central server connected to the AVL to receive a vehicle location data and a voltage data for computing a vehicle load at an instant. The vehicle location data and the vehicle load at any instant is communicated simultaneously to a driver of the vehicle.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 9, 2015
    Inventors: Mehran Safdar, Muhammad Mehdi Shiran, Mojtaba Jamali, Fatemeh Jamali
  • Publication number: 20150094982
    Abstract: A method for determining an estimated mass of an aircraft is provided. This method includes determining a first mass of the aircraft, from characteristics of the aircraft determined before or after takeoff of the aircraft, determining, during the flight of the aircraft, a second mass of the aircraft, from a lift equation of the aircraft expressing the mass of the aircraft as a function of information representative of the load factor of the aircraft, of a lift coefficient of the aircraft, of speed information of the aircraft and of a static pressure of a mass of air passed through by the aircraft, determined from measurements by sensors of the aircraft during the flight of the aircraft, evaluating the estimated mass at said determination moment, as a function of said first and second masses.
    Type: Application
    Filed: September 26, 2013
    Publication date: April 2, 2015
    Applicant: DASSAULT AVIATION
    Inventor: Sébastien Dupont De Dinechin
  • Patent number: 8983752
    Abstract: A system for calculating a first mass value indicative of a first mass of a vehicle is provided, wherein the vehicle has a vehicle interface capable of providing fuel data indicative of a rate at which fuel is being consumed by an engine of the vehicle at each point in time. The system includes: an interface coupled with the vehicle interface, the interface configured for: receiving the fuel data; and receiving movement data indicative of a movement of the vehicle at the each point in time; and a data processing system configured for: deriving a plurality of mass values from the fuel data and the movement data, each mass value corresponding to a respective point in time; and calculating, using the plurality of mass values, the first mass value indicative of the first mass of the vehicle.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: March 17, 2015
    Assignee: Trimble Navigation Limited
    Inventor: Richard Harvie
  • Patent number: 8977445
    Abstract: A system for determining an operational state of a machine is provided. The system includes an implement position sensor configured to generate a position signal indicative of a position of an implement. The system further includes a pressure sensor configured to generate a pressure signal indicative of a pressure of a cylinder of the machine. The system also includes a controller communicably coupled to the implement position sensor and the pressure sensor. The controller is configured to receive the position signal and the pressure signal. The controller is further configured to determine a weight of a payload of the machine based on the received signals. Further, the controller is configured to determine a dig status of the machine based, at least in part, on a rate of change of the weight of the payload and the position of the implement.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: March 10, 2015
    Assignee: Caterpillar Inc.
    Inventor: Jeffrey E. Buettner
  • Patent number: 8892399
    Abstract: A method of detecting one or more blocked sampling holes in a pipe of an aspirated smoke detector system. The method includes ascertaining the base flow of fluid through a particle detector using a flow sensor; monitoring subsequent flow through the particle detector; comparing the subsequent flow with the base flow; and indicating a fault if the difference between the base flow and the subsequent flow exceeds a predetermined threshold.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: November 18, 2014
    Assignee: XTralis Technologies Ltd
    Inventors: Kemal Ajay, Arjun Vinoo Caprihan, Michael Rezny
  • Publication number: 20140309966
    Abstract: A method for determining the weight G of a vehicle (1) while the vehicle is travelling on a section (3) of road (4) uses at least one weigh-in-motion (WIM) sensor (5) that is narrower than the length of the footprint of a wheel in the direction of vehicle travel. When the vehicle (1) travels along this section (3) of road (4) both the wheel loads Fi (t) of all the wheels (2) or twin wheels i, and the speed vi(t) of the vehicle (1) during the entire passing are acquired as time functions, and during evaluation of the data for determining the weight G the speeds vi(t) and their change over time are used as weighting of the simultaneously determined wheel loads Fi(t).
    Type: Application
    Filed: November 2, 2012
    Publication date: October 16, 2014
    Inventors: David Cornu, Adrian Hofmann
  • Publication number: 20140309844
    Abstract: Method for controlling weighing of a vehicle travelling on a road by means of a weigh station alongside the road includes determining weight of the vehicle using a processor on-board the vehicle and transmitting from the vehicle using a telematics device, the determined weight of the vehicle to the weigh station. Determining the weight of the vehicle may entail processing inertial property data from an inertial measurement unit (IMU) into an indication of the weight of the vehicle. The inertial property data from the IMU may be multiple sets of inertial property data obtained over time. The IMU may be calibrated, using the processor, based differential motion of the vehicle over a period of time as determined by a location positioning system. A Kalman filter may also be used. A vehicle transmitting its determined weight avoids stopping at the weigh station.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 16, 2014
    Inventor: David S. Breed
  • Publication number: 20140244211
    Abstract: A method for measuring mass inertia of moving surfaces, comprising the steps of: (a) Alignment of the center of gravity of an assembly (90) formed by the moving surface (50) and a support device (70) fastened to at least two joints (31, 32) in a rest position, this alignment comprising a reading in a comparing clock (40) and driving of an adjusting element arranged in the support device (70) for obtainment of a predetermined value in the comparing clock (40); (b) Measurement of the static moment of assembly (Mstatic) in an intermediate position through a dynamometer (60); (c) Measurement of the oscillation period of assembly (T) in a pendulum position through an accelerometer arranged in the support device (70) and (d) Reading of the static moment of assembly (Mstatic) and that of oscillation period of assembly (T) and obtainment of the inertial moment of the moving surface (Ihhsup)—An equipment (10) for measurement of mass inertia of moving surfaces, is further described, comprising: a structure (20) formed
    Type: Application
    Filed: July 27, 2012
    Publication date: August 28, 2014
    Applicant: ENBRAER S.A.
    Inventors: José Carlos Dos Santos, Anderson Tobias Lindegger, Claudio Nagafchi, Douglas Alves Morae, Osvaldo Escobar, Marcelo Camilo Alves Costa, Altair Tomaz Mendes
  • Patent number: 8798887
    Abstract: A vehicle system and method that estimates or approximates the mass of a vehicle so that a more accurate vehicle mass estimate can be made available to other vehicle systems, such as an adaptive cruise control (ACC) system or an automated lane change (LCX) system. In an exemplary embodiment, the method compares an actual acceleration of the vehicle to an expected acceleration while the vehicle is under the control of an automated acceleration event. The difference between these two acceleration values, along with other potential input, may then be used to approximate the actual mass of the vehicle in a way that takes into account items such as passengers, cargo, fuel, etc. Once an accurate vehicle mass estimate is generated, the method may make this estimate available to other vehicle components, devices, modules, systems, etc. so that their performance can be improved.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: August 5, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: James N. Nickolaou, Leonard J. Leshinsky, Jr.
  • Patent number: 8775129
    Abstract: A robot (1) having a workpiece mass measurement function for measuring the mass of a workpiece that is held, includes a force measurement unit (5) that measures the force that is applied to the tip part (2) of the mechanism part of the robot (1), and a mass estimation unit (11) that estimates the mass of the workpiece that is held by the robot (1), based on information about the force acquired by the force measurement unit (5) while the robot (1) is moving.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: July 8, 2014
    Assignee: Fanuc Corporation
    Inventor: Takashi Sato
  • Publication number: 20140156222
    Abstract: A method and a system for estimating a weight mv for a vehicle on the basis of at least two forces which act upon the vehicle, the forces are a motive force FT and at least one further force, and topographical information for a relevant section of road. The estimation is performed when the at least two forces are dominated by the motive force FT.
    Type: Application
    Filed: March 26, 2012
    Publication date: June 5, 2014
    Inventor: Fredrik Roos
  • Patent number: 8742911
    Abstract: The invention relates to a method for monitoring the load of vehicle tires which are each contacting a pavement with a circumferential section during travel, by means of monitoring devices (4) which are mounted to the tire (1) and contain a transmitter and a generator which is driven by the flexion of the tire (1), said flexion occurring during vehicle operation, wherein the generator generates a first voltage pulse each time it reaches the beginning of the circumferential section of the tire (1), which is contacting the pavement, and generates a second voltage pulse each time it reaches the end of the circumferential section of the tire (1), which is contacting the pavement, the time intervals (t1) between first and second voltage pulses are measured, the time intervals (t1) or a value calculated therefrom are/is compared with a reference value, and a warning signal is generated if a difference detected in this comparison exceeds a predefined value.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: June 3, 2014
    Assignee: Huf Hulsbeck & Furst GmbH & Co. KG
    Inventors: Markus Wagner, Hendrik Troeger
  • Patent number: 8669861
    Abstract: A system and method for establishing a weight related risk profile using RFID technology is provided. While the cargo container is in transit, a RFID reader inside a cargo container polls the contents of the container by reading RFID data from each RFID tagged item and calculate the payload weight. When the truck transporting the cargo container passes a weigh station, or a high-speed scale embedded in the road, a payload weight is measured by a scale. A risk factor is assessed by comparing the estimated weight by the RFID reader with the measured weight by the scale. According to one aspect of the invention, the RFID based polling system has the ability to map the weight and location for each tagged item and estimate a container weight distribution. The estimated weight distribution is compared with the weight distribution measured by the scale to determine potential anomalies.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: March 11, 2014
    Assignee: GlobalTrak, LLC
    Inventor: Richard C. Meyers
  • Patent number: 8670954
    Abstract: Disclosed is a train load measuring system and a method thereof. The train load measuring system includes a speed/acceleration measuring unit, a position measuring unit, a railway-line state receiving unit, a driving/braking force receiving unit and a calculate unit. The speed/acceleration measuring unit measures a speed and acceleration of the train. The position measuring unit measures a current position of the train. The railway-line state receiving unit receives a railway-line state. The driving/braking force receiving unit receives driving and braking forces of the train. The calculating unit calculates a train load based on information transferred from the units.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: March 11, 2014
    Assignee: LSIS Co., Ltd.
    Inventor: Young Hwan Yoon
  • Patent number: 8630767
    Abstract: A method, an apparatus and a computer program product for estimating the current load of a vehicle wherein a filter bank including a filter for different weight classes, each filter implementing a vehicle model for estimating the current mass of the vehicle. Based on vehicle data indicative of a current driving situation of the vehicle, and filter parameter specific for the respective weight class, each filter provides a load estimation value as filter specific estimation of the current load of the vehicle.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: January 14, 2014
    Assignee: Nira Dynamics AB
    Inventors: Rickard Karlsson, Andreas Andersson, Jonas Josefsson
  • Patent number: 8554511
    Abstract: An apparatus, method and program for estimating the mass of a vehicle uses periodically detected tire rotation speed information of the vehicle wheels, calculated tire rotation acceleration information, calculated driving force of the vehicle, and estimated mass of the vehicle as a regression coefficient when the rotation acceleration information and the driving force information are subjected to linear regression. With regard to an error in calculated driving force information, a ratio is calculated between the dispersion of the error obtained one time before and an error at the current moment, and an update adjustment parameter is calculated by adding a stabilization parameter to thus obtained ratio. The calculated update adjustment parameter is used to calculate a Kalman gain so that the mass is sequentially estimated so as to reduce an update width of the regression coefficient when the error ratio is higher.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: October 8, 2013
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Hajime Fujita, Mitsuhiro Wada
  • Patent number: 8530762
    Abstract: A flatbed weigh system and methods for weighing substantially flat articles such as mail flats while they are moving. A weigh system has an intake plate (2102) and an accelerator assembly (2100) that receives an article (2150) and accelerates it to a selected velocity. Acceleration is controlled by a servo motor (2112) which in turn is driven by a precision closed-loop servo system (FIG. 12) that accumulates motor torque data to determine the article weight. The accelerator assembly uses vacuum pressure (2130, 2132) to hold the moving article in engagement with a cylindrical capstan roller (2110) while it is being weighed. This vacuum-driven concept eliminates the need for a pinch roller to hold the moving article against a capstan roller as in other designs. Because the pinch roller is eliminated, there is essentially no “bouncing” to address, so dampen is obviated. Further, the vacuum design is not adversely affected by variations in thickness of the article under test as in the pinch roller designs.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: September 10, 2013
    Assignee: RAF Technology, Inc.
    Inventor: Bryan J. Turner
  • Patent number: 8532957
    Abstract: A method of measuring the weight of an aircraft is disclosed. The method comprises, in a self-propelled aircraft undercarriage having a electrical rotating machine, the steps of: measuring the current and voltage going into the rotating machine using current and voltage measuring means, calculating the power into the rotating machine, measuring the speed (or torque or acceleration) of said machine using speed sensing means, and comparing the power and speed (or torque or acceleration) results with a database of power and speed relationships of comparable aircraft of varying weights.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: September 10, 2013
    Assignee: Borealis Technical Limited
    Inventors: Isaiah Watas Cox, Jonathan Sidney Edelson
  • Patent number: 8481870
    Abstract: Methods and apparatus for weighing an article, such as a mail piece, while the article is moving at high speed, for example along a transport of a sorter machine. An article (900) is received from an intake transport (1200), and gripped in a weighing station (1310), in between a capstan roller and a pinch roller (1316), which are synchronized to minimize slipping. A first precision servo system (1252, 1250) alters the speed of the article, and in the process acquires torque data for storage and analysis (1212, 1282). A second precision servo system (1260,1330) applies a constant force, via a tension arm (1320), urging the pinch roller (1316) against the capstan roller, independently of the thickness of the mail piece. Active electronic damping (FIG. 19) preferably is applied in the second servo system minimize vibration of the tension arm, but only while gripping the article.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: July 9, 2013
    Assignee: RAF Technology, Inc.
    Inventor: Bryan Turner
  • Patent number: 8466380
    Abstract: An apparatus for measuring articles includes a conveying part, a plurality of measuring parts and a determining part. The conveying part includes a plurality of conveyers placed adjacently in series for conveying articles successively in a straight line. The plurality of measuring parts measure weight or dimensions of the respective articles successively conveyed by the conveying part. The determining part determines the weight or the dimensions of the respective articles based on the measured values by the plurality of the measuring parts.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: June 18, 2013
    Assignee: Teraoka Seiko Co., Ltd.
    Inventors: Yuichi Inoue, Fumio Morisawa
  • Patent number: 8412447
    Abstract: A method is for effecting a computer-aided estimation of the mass of a vehicle, e.g., of a goods-carrying vehicle, based on the equilibrium ratio between the driving force and the sum of the inertial force and drive resistances, in which the mass and a gradient angle of the roadway are contained as quantities. The method may include: a) computer-aided differentiation of the equilibrium ratio according to the time with the assumption that the gradient angle is constant; and b) calculating the mass of the vehicle and/or the reciprocal value of the mass from the equilibrium ratio differentiated according the time.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: April 2, 2013
    Assignee: Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbH
    Inventors: Falk Hecker, Matthias Horn, Ulrich Guecker, Stefan Hummel
  • Patent number: 8370124
    Abstract: An emulation system includes a central time source generating a time reference and an emulated spacecraft control processor which contains an embedded processor that provides an emulated input/output interface to communicate simulated spacecraft data. The embedded processor processes the simulated spacecraft data and contains a real time clock engine having a real-time clock period. The system further has a first simulation that processes attitude control system data from the emulated spacecraft control processor to simulate an attitude control system of the spacecraft in real-time. The first simulation engine operative to produce sensor data for input to the emulated spacecraft control processor based on the simulated system dynamics and adjusts the real time clock period in response to the time reference.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: February 5, 2013
    Assignee: The Boeing Company
    Inventors: Jeffrey J. Gold, John D. Haskell, David L. Koza, Michael J. Surace, Steven R. Zammit
  • Patent number: 8352214
    Abstract: A belt weighing system, including a belt passing over a weigh frame able to measure the weight of conveyed material, and at least one memory to store a zero image for the belt. At least one processor able to determine differences between a measured belt weight and a stored zero image for corresponding points or sections of the belt, and to determine if the differences are constant for different sections of the belt. A condition for an empty belt state can be detected where the instantaneous difference between the stored zero image and the measured belt weight for corresponding belt points or sections is equal to an average difference for different belt points or sections.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: January 8, 2013
    Inventor: Leonard Ian Burrell
  • Publication number: 20120265366
    Abstract: A dynamic method to accurately determine the mass of a vehicle which deforms on acceleration and is subject to low frequency noise is disclosed. Only the greater than zero hertz frequencies of the signals are processed. Both signals are squelched during periods of high jerk to reduce the error between true mass and apparent mass. For a single body or combination vehicle such as a semi-rig with a propulsive body of known mass a reference for matched or Wiener filtering is constructed from the noisy signals to filter low frequency noise. A towing vehicle with a fifth wheel mounted on a dedicated load sensing apparatus can, therefore, determine the weight of any semi-trailer towed on any terrain of any inclination and any changing inclination with the greatest precision in the shortest possible time.
    Type: Application
    Filed: April 11, 2012
    Publication date: October 18, 2012
    Inventor: Bret E. Cahill
  • Patent number: 8285429
    Abstract: A system is provided for controlling a series of vehicles. In certain embodiments, the system includes a self-analysis/estimation system configured to control a first parameter of the series of vehicles to impart a resulting changing in a second parameter of the series of vehicles. The self-analysis/estimation system is configured to estimate a third parameter based on the first and second parameters, wherein the third parameter comprises weight, weight distribution, tractive effort, grade, or a combination thereof, associated with the series of vehicles.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: October 9, 2012
    Assignee: General Electric Company
    Inventor: Ajith Kuttannair Kumar
  • Publication number: 20120203505
    Abstract: A belt weighing system, including a belt passing over a weigh frame able to measure the weight of conveyed material, and at least one memory to store a zero image for the belt. At least one processor able to determine differences between a measured belt weight and a stored zero image for corresponding points or sections of the belt, and to determine if the differences are constant for different sections of the belt. A condition for an empty belt state can be detected where the instantaneous difference between the stored zero image and the measured belt weight for corresponding belt points or sections is equal to an average difference for different belt points or sections.
    Type: Application
    Filed: September 17, 2010
    Publication date: August 9, 2012
    Inventor: Leonard Ian Burrell
  • Patent number: 8229702
    Abstract: An apparatus for weighing a stent includes a buffer for storing a stent support with a stent mounted thereon, a stent mounting and dismounting assembly that mounts and dismounts the stent from the stent support, a robotic arm for moving the stent support with the stent between the buffer and the stent mounting and dismounting assembly, and a scale assembly for weighing the stent. The stent mounting and dismounting assembly moves the stent into the scale assembly after the stent has been dismount from the stent support.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: July 24, 2012
    Assignees: Abbott Cardiovascular Systems Inc., ATS Automation Tooling Systems Inc.
    Inventors: Bryan Russell Hemphill, Andrew James McKay, Sang joon Park, Aaron Meyer Waese, Anthony S. Andreacchi, Yung-Ming Chen, Arnoldo M. Currlin, Antonio Garcia, Jason Van Sciver
  • Patent number: 8224621
    Abstract: A method for the determination of the time of flight of a signal transmitted between a transmitter (42, 44) and a receiver (44, 42). In one form, the method involves transmitting a first signal and a second signal having a waveform modification introduced at a predetermined point in time of the duration of the second signal; receiving said first and second transmitted signals; determining a point of diversion between the first and second received signals to determine an arrival time of the introduced waveform feature modification at the receiver. In addition, the invention provides an accurate time of flight determination of ultrasonic signals in a flow sensor (24) adapted for a smoke detector system (10).
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: July 17, 2012
    Assignee: Vision Fire & Security Pty Ltd
    Inventors: Kemal Ajay, Arjun Vinoo Caprihan, Michael Rezny
  • Patent number: 8185234
    Abstract: The invention relates to a device and a method for controlling the loading and/or unloading process of an aeroplane. According to the invention, a parcel introduced into the aeroplane is identified, a weight is associated with the parcel, the position of the parcel inside the airplane is monitored, and the total weight and/or center of gravity of the aeroplane is calculated from the aeroplane information provided and the weights and positions of the parcels.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: May 22, 2012
    Assignee: Rheinmetall Defence Electronics GmbH
    Inventors: Ronald Tietjen, Torsten Eilts, Ekkehard Zischow, Norbert Palubitzki
  • Patent number: 8185346
    Abstract: A method for establishing a dynamic maintenance scheduling tool for a specific part of a machinery based on condensed prior knowledge of the part of the machinery in a population of machineries. The scheduling tool is in turn used in a method for establishing a dynamic maintenance schedule for a specific part of a specific machinery, wherein parameters related to the usage, including relevant parameters representing factors influencing the lifetime of the specific parts, are utilized as input data to the dynamic maintenance scheduling tool for the specific part of the machinery, whereupon a dynamic maintenance schedule for the specific part of the specific machinery is achieved as output data from the scheduling tool. The method is in particular dedicated to industrial robot systems.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: May 22, 2012
    Assignee: ABB Research Ltd.
    Inventors: Niclas Sjöstrand, Dominique Blanc, Anders Lindin
  • Patent number: 8129635
    Abstract: Methods and apparatus for weighing an article, such as a mail piece, while the article is moving at high speed. An article (900) is received from an intake transport (1200), and gripped in a weighing station (1310), in between a capstan roller and a pinch roller (1316), which are synchronized to minimize slipping. A first precision servo system (1252, 1250) alters the speed of the article, and in the process acquires torque data for storage and analysis (1212, 1282). A second precision servo system (1260, 1330) applies a constant force, via a tension arm (1320), urging the pinch roller (1316) against the capstan roller, independently of the thickness of the mail piece. Fourier analysis can conveniently be applied for analyzing the acquired current data and comparing to stored calibration data to determine weight. Weight is determined without regard to the actual speed of the moving article.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 6, 2012
    Assignee: RAF Technology, Inc.
    Inventor: Bryan Turner
  • Patent number: 8027741
    Abstract: Embodiments include systems and methods of estimating at least one state of a modeled dynamic system. In particular, in one embodiment, an observer such as an extended Kalman filter is used to estimate the state of a modeled dynamic system. A covariance matrix associated with state variables of the observer is periodically checked for compliance with a specified condition, e.g., positive definiteness. If the matrix deviates from the specified condition, the matrix is set to a specified value.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: September 27, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Aaron D. Kahn
  • Publication number: 20110218764
    Abstract: A vehicle mass estimation apparatus for estimating the mass of a vehicle based on rotation information of tires attached to the vehicle. The apparatus includes a rotation speed information detection means for periodically detecting tire rotation speed information of the respective wheels of the vehicle; a rotation acceleration information calculation means for calculating tire rotation acceleration information based on the rotation speed information obtained by the rotation speed information detection means; a driving force calculation means for calculating a driving force of the vehicle based on axle shaft torque information of the vehicle; and a vehicle mass estimation means for estimating the mass of the vehicle as a regression coefficient when the rotation acceleration information and the driving force information are subjected to linear regression.
    Type: Application
    Filed: October 26, 2010
    Publication date: September 8, 2011
    Inventors: Hajime FUJITA, Mitsuhiro Wada
  • Patent number: 7996107
    Abstract: The invention relates to a device that comprises a tool holder that can be adjusted in an x-axis, a y-axis which is perpendicular thereto, and a z-axis that is perpendicular both to the x-axis and the y-axis and that can be pivoted about the z-axis. A dispense head for solid material is mounted on the tool holder as the tool. Two scales are disposed on the dispense head for solid material, said scales weighing the material which is or is to be delivered by the dispense head for solid material. The inventive design with two scales directly mounted on the dispense head for solid material allows for weighing of the material without the dispense head for solid material or the material having to be placed on separate scales.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: August 9, 2011
    Assignee: Chemspeed Technologies AG
    Inventors: Rolf Gueller, Josef Schröer, Paul Frank, Franz Metzger, Christoph Bachmann, Gerhard Klokow, Benard Zahnd
  • Patent number: 7979185
    Abstract: A method for determining a motor vehicle mass which is implemented in conjunction with shifting an automated shift transmission from a current gear to a desired gear. In determining the mass, a value force and movement parameters are determined partly before or after the shift operation and partly during it. For the more rapid and accurate determination of mass, the drive-wheel-related traction force of the drive engine before and after the shift F_zug_vor, F_zug_nach, the longitudinal acceleration of the vehicle before and after the shift, a_zug_vor, a_zug_nach, and the acceleration a_roll determined in the traction-force-free phase during the shift are determined, and from these and in accordance with the equation m=F_zug/(a_zug?a_roll), a first mass value m_vor=F_zug_vor/(a_zug_vor?a_roll) is calculated for the beginning of the shift and a second mass value m_nach=F_zug_nach/(a_zug_nach?a_roll) is calculated for the end of the shift.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: July 12, 2011
    Assignee: ZF Friedrichshafen AG
    Inventors: Werner Wolfgang, Maik Würthner, Ingo Sauter
  • Publication number: 20110004441
    Abstract: A flatbed weigh system and methods for weighing substantially flat articles such as mail flats while they are moving. A weigh system has an intake plate (2102) and an accelerator assembly (2100) that receives an article (2150) and accelerates it to a selected velocity. Acceleration is controlled by a servo motor (2112) which in turn is driven by a precision closed-loop servo system (FIG. 12) that accumulates motor torque data to determine the article weight. The accelerator assembly uses vacuum pressure (2130, 2132) to hold the moving article in engagement with a cylindrical capstan roller (2110) while it is being weighed. This vacuum-driven concept eliminates the need for a pinch roller to hold the moving article against a capstan roller as in other designs. Because the pinch roller is eliminated, there is essentially no “bouncing” to address, so dampening is obviated. Further, the vacuum design is not adversely affected by variations in thickness of the article under test as in the pinch roller designs.
    Type: Application
    Filed: September 17, 2010
    Publication date: January 6, 2011
    Applicant: RAF TECHNOLOGY, INC.
    Inventor: Bryan J. Turner
  • Patent number: 7855662
    Abstract: A technique for recording the front image of vehicles which violate the regulation in the axle weight is desired. In general, the weight of the leading axle cannot be excessively heavy, so that the over weight axle is a second or more rear side axle. Further, the distance between an axle weight detector and a vehicle detector for taking a vehicle image is normally below 8 meters. Under these conditions, when the over weight axle is detected, the over axle weight vehicle is predicted to be a vehicle being presently detected, a vehicle to be detected next, or next to the next. From the images of those vehicles, vehicles having no possibility of violating the axle weight regulation are eliminated based on a license plate read from the vehicle image or the measured vehicle height. The images not eliminated are stored as over axle weight vehicle images.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: December 21, 2010
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Shinya Yano
  • Patent number: 7820923
    Abstract: A weigh-on-the-fly WOF module for weighing a mail piece as it is being sorted by a mail sort machine. The piece is delivered to entry pinch rollers in the WOF module which, in turn, deliver the piece into pinch at an acceleration roller. The thickness of the piece is measured the pinch at the acceleration roller is adjusted to reduce drag on the mail piece during acceleration. The acceleration roller is driven by a constant torque motor at a first known or measured velocity V1 which is increased to second known or measured velocity V2 when the mail piece arrives. The time of acceleration from V1 to V2 is measured. Once the velocities and the time of acceleration are known, the weigh of that particular mail piece can be calculated using the formula: F=ma wherein F=force or torque m=mass or weight; and a=acceleration or (V2?V1)/time.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: October 26, 2010
    Inventor: Brent A. Daboub
  • Patent number: 7813973
    Abstract: An inventory monitoring system measures changes in weight of an inventory stored on one or more scales. The inventory items are divided into classes by weight, and the system determines the maximum number of items that can be in a combination while maintaining a distinct combined weight. Items are then removed or added, and the change in weight on the scales is correlated to a change in the number of inventory items to track the number of items removed or added over time. In a combined system, scanners are employed to track inventory received or sold, and data from the scanners relating to the items in the inventory is filtered out for comparison to the inventory changes indicated by changes in weight. The system has particular utility for monitoring inventories of cigarettes.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: October 12, 2010
    Assignee: Inventrol LLC
    Inventor: Larus Gudbjartsson
  • Patent number: 7798043
    Abstract: When a kinetic kill vehicle is launched against an incoming ballistic object and the two objects collide, by measuring the deflection angle of the trajectory of the merged object and comparing the deflection angle against a threshold value, a determination is made as to the relative weight of the incoming ballistic object and whether or not the incoming ballistic object is a decoy and not the warhead.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: September 21, 2010
    Assignee: Lockheed Martin Corporation
    Inventors: Kourken Malakian, Stephen J. Salvatore
  • Patent number: 7783450
    Abstract: A method and system (10, 23) for determining vehicle weight to a precision of <0.1%, uses a plurality of weight sensing elements (23), a computer (10) for reading in weighing data for a vehicle (25) and produces a dataset representing the total weight of a vehicle via programming (40-53) that is executable by the computer (10) for (a) providing a plurality of mode parameters that characterize each oscillatory mode in the data due to movement of the vehicle during weighing, (b) by determining the oscillatory mode at which there is a minimum error in the weighing data; (c) processing the weighing data to remove that dynamical oscillation from the weighing data; and (d) repeating steps (a)-(c) until the error in the set of weighing data is <0.1% in the vehicle weight.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: August 24, 2010
    Assignee: UT-Battelle, LLC
    Inventors: Lee M. Hively, Robert K. Abercrombie
  • Publication number: 20100082389
    Abstract: Methods and apparatus for weighing an article, such as a mail piece, while the article is moving at high speed, and for checking that the correct amount of postage has been paid for delivery of the article. An article (900) is received from an intake transport (1200), and gripped in a weighing station (1310), in between a capstan roller and a pinch roller (1316), which are synchronized to minimize slipping. A first precision closed-loop servo system (1252, 1250) alters the speed of the article, and in the process acquires torque data for storage and analysis (1212, 1282) to determine weight. Correct postage is determined in a processor (1212), and the postage actually paid is checked either by image analysis (1204, 1214, 1280) or by accessing a stored mailer manifest (1280).
    Type: Application
    Filed: September 28, 2009
    Publication date: April 1, 2010
    Applicant: RAF TECHNOLOGY, INC.
    Inventor: Bryan Turner
  • Patent number: 7586049
    Abstract: An apparatus for measuring the weight of items on a conveyor includes a scale that generates a first signal corresponding to the weight of the items. A movable platform transports the items to the scale and generates a second signal corresponding to position of the items in relation to the scale. A dimensioner examines the items and generates a third signal representative of whether the items are singulated or nonsingulated. A processor receives the second and third signals and determines whether to associate the first signal with information stored in memory about a particular item based upon whether the particular item is singulated or nonsingulated.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: September 8, 2009
    Assignee: Accu-Sort Systems, Inc.
    Inventor: David A. Wurz
  • Publication number: 20090216487
    Abstract: A method (51) for measuring the mass of an object such as a letter (10) in motion. An apparatus (12) for carrying out the present invention includes a pair of rollers (16, 18) through which a letter passes. One of the rollers (16) is driven by a motor (20) which has an associated encoder (22) to give motor positional information to a controller (24). In a method of the present invention the controller generates a ramping torque signal (44) which is provided to the motor. A friction correction curve (40) is generated and applied to the torque signal, and an average torque value (C) is determined. From the positional information provided by the encoder, acceleration (50) is derived and an inertia value is obtained by dividing the average torque (C) by the acceleration. Prior to obtaining an inertia value with a letter, an initial inertia value is obtained without a letter to get a base inertia. The base inertia is subtracted from the measured inertia with a letter to get a difference ?l.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 27, 2009
    Inventors: Paul Streder, Erik Brewster, Lalo Ruiz, Ariesta Wibisono
  • Publication number: 20090125273
    Abstract: A method and system (10, 23) for determining vehicle weight to a precision of <0.1%, uses a plurality of weight sensing elements (23), a computer (10) for reading in weighing data for a vehicle (25) and produces a dataset representing the total weight of a vehicle via programming (40-53) that is executable by the computer (10) for (a) providing a plurality of mode parameters that characterize each oscillatory mode in the data due to movement of the vehicle during weighing, (b) by determining the oscillatory mode at which there is a minimum error in the weighing data; (c) processing the weighing data to remove that dynamical oscillation from the weighing data; and (d) repeating steps (a)-(c) until the error in the set of weighing data is <0.1% in the vehicle weight.
    Type: Application
    Filed: February 26, 2008
    Publication date: May 14, 2009
    Inventors: Lee M. Hively, Robert K. Abercrombie
  • Publication number: 20090112513
    Abstract: A washing machine is provided that includes measuring a load in a washer with a motor, the method comprising: a) accelerating a load in the washer b) providing a first input voltage and running the motor until a first speed of the motor is stable; c) providing a second input voltage, d) starting a timer, upon providing the second input voltage, and obtaining a first time measurement; e) operating the motor until the load speed responds to the second input voltage to the motor and is stable; f) stopping the timer and obtaining a second time measurement; g) calculating a time differential between the first time measurement and the second time measurement; and h) determining the load size using a load size equation and the time differential.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 30, 2009
    Inventors: Mariano FILIPPA, Edward Hatfield, Meher P. Kollipara, Richard D. Suel, II, John Steven Holmes
  • Patent number: 7526376
    Abstract: Relative center of gravity height in a motor vehicle changes from a nominal value to an actual value depending upon vehicle loading. Method and apparatus for determining actual relative center of gravity height are disclosed.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: April 28, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Jihua Huang, William C. Lin
  • Patent number: 7499826
    Abstract: A method of estimating a mass of a vehicle. If a yaw rate is smaller than a reference value, a straight direction model algorithm is applied to obtain an estimated mass. If a measured speed and a measured steering angle are larger than reference values, a lateral direction model algorithm is applied to obtain another estimated mass. If a measured vertical acceleration is larger than a reference value, a vertical direction model algorithm is applied to obtain yet another estimated mass. If each of the estimated masses is in an allowable range, and is constant for a given time period, the masses are applied to a recursive least square method, thereby estimating the mass of the vehicle.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: March 3, 2009
    Assignee: Hyundai Motor Company
    Inventors: Kun-Soo Huh, Jong-Chul Jung, Dae-Gun Hong, Sung-Hyun Lim