| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | METHOD FOR AUTOMATICALLY ESTIMATING INERTIA, COULOMB FRICTION, AND VISCOUS FRICTION IN A MECHANICAL SYSTEM | US14851307 | 2015-09-11 | US20170074753A1 | 2017-03-16 | Gang Tian |
| Systems and methods for estimating an inertia, a Coulomb friction coefficient, and a viscous friction coefficient for a controlled mechanical system are provided. In one or more embodiments, an inertia and friction estimation system can generate a torque command signal that varies continuously over time during a testing sequence. The velocity of a motion system in response to the time-varying torque command signal is measured and recorded during the testing sequence. The estimation system then estimates the inertia and the friction coefficients of the motion system based on the torque command data sent to the motion system and the measured velocity data. In some embodiments, the estimation system estimates the inertia and the friction coefficients based on integrals of the torque command data and the velocity data. | ||||||
| 82 | Method for automatically estimating a friction coefficient in a mechanical system | US14164412 | 2014-01-27 | US09268316B2 | 2016-02-23 | Gang Tian |
| Systems and methods for estimating an inertia and a friction coefficient for a controlled mechanical system are provided. In one or more embodiments, an inertia estimator can generate a torque command signal that varies continuously over time during a testing sequence. The velocity of a motion system in response to the time-varying torque command signal is measured and recorded during the testing sequence. The inertia estimator then estimates the inertia and/or the friction coefficient of the motion system based on the torque command data sent to the motion system and the measured velocity data. In some embodiments, the inertia estimator estimates the inertia and the friction coefficient based on integrals of the torque command data and the velocity data. | ||||||
| 83 | INERTIA ESTIMATING METHOD AND INERTIA ESTIMATING APPARTUS OF POSITION CONTROL APPARATUS | US14262371 | 2014-04-25 | US20140318246A1 | 2014-10-30 | Masashi Miyaji |
| A torque command value and an acceleration detection value are accumulated when a driven portion is subjected to acceleration/deceleration driving, and, from a ratio between the two, inertia of a movable portion is calculated. By executing the acceleration/deceleration driving about a position where influence of gravity torque is zero, the influence of the gravity torque included in the torque command value before and after the center position is offset, whereby inertia can be estimated correctly even with a machine structure in which the influence of gravity differs depending on the position of the motor. | ||||||
| 84 | PROBE BALANCER | US14204114 | 2014-03-11 | US20140260711A1 | 2014-09-18 | Larry A. Turner; Vincent A. Boens |
| A probe balancing device and system is provided for configuring and balancing a probe assembly of a coordinate measurement machine for accurate measurement. It can aid in the correction of an out of balance probe assembly and in meeting a vendor's specified torque and weight specification. A method for configuring and balancing such a probe assembly is also provided. The tool or system may be used either to balance an existing probe assembly or to balance a new probe assembly. Balancing may be accomplished by adding weights to various radial locations of the probe assembly or by changing probe assembly parts and/or component material until a leveling element is centered. A kit may be provided including the tool or system and one or more of a weight scale, a weigh scale stand, one or more weights, or a storage tray for the one or more weights. | ||||||
| 85 | SYSTEMS AND METHODS FOR DETERMINING MASS PROPERTIES OF VEHICLE COMPONENTS | US13686769 | 2012-11-27 | US20140144256A1 | 2014-05-29 | PANKAJ K. JHA; PRAVEENKUMAR PANUGANTI; MICHAEL D. NIENHUIS |
| A system for measuring a mass property of an object is provided. The system includes a first shaft having a first end and a second end and a table disposed in a first plane and coupled to the first shaft at a predetermined angle to support the object. The table is configured to pivot about an axis perpendicular to the first plane between at least a first pivot position and a second pivot position. The system further includes a torque sensor configured to collect a first torque measurement on the first shaft when the table is in the first pivot position and a second torque measurement on the first shaft when the table in the second pivot position. | ||||||
| 86 | Method for automatically estimating inertia in a mechanical system | US13451924 | 2012-04-20 | US08710777B2 | 2014-04-29 | Gang Tian |
| Systems and methods for estimating an inertia and a friction coefficient for a controlled mechanical system are provided. In one or more embodiments, an inertia estimator can generate a torque command signal that varies continuously over time during a testing sequence. The velocity of a motion system in response to the time-varying torque command signal is measured and recorded during the testing sequence. The inertia estimator then estimates the inertia and/or the friction coefficient of the motion system based on the torque command data sent to the motion system and the measured velocity data. In some embodiments, the inertia estimator estimates the inertia and the friction coefficient based on integrals of the torque command data and the velocity data. | ||||||
| 87 | Method and device for simulating a body that is moved in a translational or rotational manner | US13807120 | 2011-11-08 | US08689640B2 | 2014-04-08 | Robert Bauer; Wolfgang Ettl; Christian Gritsch; Michael Wastian |
| A method and a device for simulating a body that is moved in a translational or rotational manner. The method includes detecting a force that acts on the body or a torque (MW), and assigning a reference mass or a reference moment of inertia (Jsoll) to the body. The force or the torque (Mw) and the reference mass or the reference moment of inertia (Jsoll) are used to determine a reference speed (ωsoll) for a speed control which controls an actual speed (ωist) using a control transmission function (G(s)), and the reference speed (ωsoll) is determined by means of a transmission element using a transmission function (P(s)) that is reciprocally proportional to the control transmission function (G(s)). | ||||||
| 88 | Apparatus and method for rotating-sensorless identification of mechanical parameters of a three-phase asynchronous motor | US13205859 | 2011-08-09 | US08604745B2 | 2013-12-10 | Sebastian Villwock; Heiko Zatocil |
| A method for the identification without shaft encoder of magnetomechanical characteristic quantities of a three-phase asynchronous comprising: —constant voltage impression U1α in α axial direction in order to generate a constant magnetic flux; —test signal voltage supply U1β in β axial direction of the asynchronous motor, whereby the α axial direction remains supplied with constant current; —measuring signal current measurement I1β in β stator axial direction of the asynchronous motor; —identification of mechanical characteristic quantities of the asynchronous motor based on the test signal voltage U1β and on the measuring signal current I1β, whereby the rotor can execute deflection movements. Method can also be used for control of electrical drives. An identification apparatus for the determination of mechanical characteristic quantities of an asynchronous motor and for motor control, whereby the identified characteristic quantities can be used to determine, optimize and monitor a motor control. | ||||||
| 89 | Measuring device for a moment weighing system and moment weighing system | US13037539 | 2011-03-01 | US08393202B2 | 2013-03-12 | Christian Baum; Ronny Jahnke |
| A measuring device for a moment weighing system is provided. The measuring device includes a base plate with a plurality of fixing openings, a receiving plate, arranged rotatably on the base plate, including a plurality of receiving openings and a plurality of fixing openings, a measurement receptacle, arranged on the receiving plate for a measurement object, with the measurement receptacle engaging in part of the receiving openings, and a plurality of fixing pins which fix the measurement receptacle in a measurement position by way of engagement in part of the fixing openings in the base plate and receiving plate. | ||||||
| 90 | Method and apparatus for estimating system inertia where number of motor rotations are restricted | US11712145 | 2007-02-28 | US20080203960A1 | 2008-08-28 | John J. Golownia; Robert J. De Lange; Thomas J. Rehm |
| A method and apparatus for estimating inertia of an electric motor that drives a load wherein the load has a limited range of load travel, the method comprising the steps of identifying an intermediate position along the range of load travel that is separated from a first end of the range of load travel, receiving a sensor signal from a sensor attached to the electric motor, with the load separated from a first end of the range of load travel, increasing a velocity of the electric motor from a first velocity as the load travels toward the first end of the range of load travel, identifying when the load has reached the intermediate position, identifying the motor velocity at the intermediate position as a second velocity, in response to the sensor signal, detecting a first rate of velocity change from the first velocity to the second velocity, acquiring a plurality of torque samples while the electric motor is changing velocity, each torque sample representing an amount of torque generated by the electric motor, calculating a first torque average by averaging the plurality of torque samples and deriving an inertia value as a function of the first rate of velocity change and the first average amount of torque. | ||||||
| 91 | Method for determining the mass moment of inertia of an electric motor drive system | US10637716 | 2003-08-08 | US06998812B2 | 2006-02-14 | Norbert Kerner; Eugen Kellner |
| A method for determining the mass moment of inertia of an electric motor drive system of a machine, having a drive motor and further drive elements arranged downstream of the drive motor. The method includes a) determining a compensation current, which compensates losses occurring at a constant speed of the motor, so that a motor speed of the drive motor remains constant and b) determining an acceleration current, which generates a defined acceleration of the drive motor when the losses occurring at the constant speed of the drive motor are compensated. The method further entails c) calculating a mass moment of inertia of the electric motor drive system based on the determined acceleration current. | ||||||
| 92 | Device for measuring the inertia tensor of a rigid body | US10515908 | 2003-05-30 | US20060010965A1 | 2006-01-19 | Gianpiero Mastinu; Carlo Doniselli |
| A device for measuring the inertia tensor of a rigid body at least consists of a rigid body (11), the inertia tensor of which is to be measured, at least one suspension means (20) with respect to at least one fixed point which sets at least one degree of fixation, excitation means (30) for causing the movement of the rigid body (11), as well as a movement detection group (40) and a data transmission group (50) to a numerical processor (60) for registering the data and executing a parameter identification procedure based upon a mathematical model of the rigid body suspended like a pendulum, suitable for obtaining the six components of the inertia tensor. | ||||||
| 93 | Device and method for measuring cross-inertia-moment in limited angular rotary axis | US10315839 | 2002-12-10 | US06742400B2 | 2004-06-01 | Si-Young Yoon |
| The present invention relates to measurement of cross-inertia-moment in a limited angular rotatory axis, and more specifically, to a measuring device and method of cross-inertia-moment in a limited angular rotatory axis. The measuring device includes a base plate; a pair of first supporters, each end portion being secured on the base plate through a load cell, for supporting a first rotatory axis; a second supporter installed inbetween the pair of first supporters to be able to rotate round the first rotatory axis, for supporting a second rotatory axis that is orthogonal to the first rotatory axis; and a roller installed at the inside of the second supporter, being rotatable round the second rotatory axis. Therefore, the present invention enables to measure and amend the cross-inertia-moment of multiple axis LOS (line of sight) stabilizer as well as low speed rotatory machinery. The present invention is also effective for minimizing the interference of the cross-inertia-moment due to the inertia in a precision stabilizer like the multiple axis LOS stabilizer, consequently improving the precision of the multiple axis LOS stabilizer | ||||||
| 94 | Device and method for measuring cross-inertia-moment in limited angular rotary axis | US10315839 | 2002-12-10 | US20030213303A1 | 2003-11-20 | Si-Young Yoon |
| The present invention relates to measurement of cross-inertia-moment in a limited angular rotatory axis, and more specifically, to a measuring device and method of cross-inertia-moment in a limited angular rotatory axis. The measuring device includes a base plate; a pair of first supporters, each end portion being secured on the base plate through a load cell, for supporting a first rotatory axis; a second supporter installed inbetween the pair of first supporters to be able to rotate round the first rotatory axis, for supporting a second rotatory axis that is orthogonal to the first rotatory axis; and a roller installed at the inside of the second supporter, being rotatable round the second rotatory axis. Therefore, the present invention enables to measure and amend the cross-inertia-moment of multiple axis LOS(line of sight) stabilizer as well as low speed rotatory machinery. The present invention is also effective for minimizing the interference of the cross-inertia-moment due to the inertia in a precision stabilizer like the multiple axis LOS stabilizer, consequently improving the precision of the multiple axis LOS stabilizer | ||||||
| 95 | Apparatus and method for calibrating moment-of-inertia and center-of-gravity | US140390 | 1998-08-26 | US6098025A | 2000-08-01 | Sang-Sin Bae |
| An apparatus and a related method are used to simultaneously calibrate a center-of-gravity and a moment-of-inertia. The apparatus includes: a motor rotated with a prescribed velocity; a tachometer installed at the motor for calibrating an angular velocity of the moto; a fixed plate which is installed at the upper portion of rotation axis of the motor and has a plurality of parts fixing units; a motor driver connected to the motor for controlling the driving of the motor and for calibrating a current value flowing into the motor; and a processor connected to the motor driver and the tachometer for calculating a center-of-gravity and a moment-of-inertia of a part by using the calibrated angular velocity and current value. | ||||||
| 96 | Mass-moment weighing beam | US746375 | 1991-08-16 | US5187976A | 1993-02-23 | E. Thomas Gossler; Michael A. Paul |
| This invention pertains to an automatic apparatus and method for determining the mass-moment of a blade of a jet engine. It encompasses an elongated weighing beam that is lifted up off both the weighing scale and a fixed fulcrum block during the loading and unloading of the blade with respect to the weighing beam. When measurements are to be taken, the weighing beam, with blade attached, is lowered onto the scale and the fixed fulcrum block. The value measured by the scale is sent to a computer for calculation of the blades' mass-moment. | ||||||
| 97 | Apparatus for measuring the mass-related characteristics of a body and its application to the measurement of the characteristics of a dry satellite | US350586 | 1989-03-27 | US5038604A | 1991-08-13 | Robert Rollet |
| A measuring apparatus for determining the mass-related characteristics of a body has a base which supports a receiving table for the body mounted so as to oscillate about an approximately vertical axis on either side of an angular equilibrium position to which the table is returned elastically. The base and the table are provided with an angular position detector and blocking elements. The base is supported by a movable structure which rests on a stand and is mounted so as to oscillate about an adjustable horizontal axis which intersects said vertical axis at an adjustable height on either side of a stable angular equilibrium position. The base and the movable structure are provided with a system for detecting angular position and with means for adjusting the height of the instantaneous horizontal axis of oscillation. The apparatus also has means for positioning and blocking the body with respect to the movable structure. | ||||||
| 98 | Method and apparatus to automatically determine the weight or mass of a moving vehicle | US557789 | 1983-12-05 | US4548079A | 1985-10-22 | Alfred Klatt |
| This invention teaches a method and apparatus for the determination of the weight of a moving vehicle driven by an internal combustion engine. The invention provides means for the determination of a value corresponding to the driving torque of the engine, and for the determination of an acceleration value corresponding to the acceleration of the vehicle. The measuring means are controlled in such a manner that the torque value can be determined at the same time as the acceleration value. Furthermore, a calculating device is provided in which one or two values of the driving torque value--determined at different times--as well as values of the acceleration variable--determined at said times--are utilized for the determination of a weight variable corresponding with the weight of the vehicle. | ||||||
| 99 | Apparatus and method for determining the moment of inertia of golf clubs and like objects | US966802 | 1978-12-06 | US4212193A | 1980-07-15 | John W. Turley |
| Apparatus and method of measuring moment of inertia of golf clubs and like objects, about an axis remote from the center of gravity, in which object to be tested is mounted in the apparatus so that said axis is vertical and object is oscillated about said axis in a horizontal plane. Low cost electronic means are used to measure period of oscillation and to compute and display the moment of inertia of said object about said axis. | ||||||
| 100 | Integral torquer for mass measurement system | US909638 | 1978-05-26 | US4202205A | 1980-05-13 | David A. Carpenter |
| A mass properties measurement system including a test object support table mounted to a bearing means for supporting the table for rotation about an axis of rotation substantially perpendicular to the plane of the support table; means for measuring overturning forces imparted to the measurement table and bearing means by a test object mounted to the support table, wherein the overturning forces tend to rotate the table and bearing means about a pivot axis substantially perpendicular to and intersecting the axis of rotation; induction motor drive means for inducing rotational forces to said support table and bearing means to rotate said support table and bearing means at a predetermined rate of rotation while remaining substantially invisible to said measuring means, the induction motor being mounted to the mass properties measurement system such that substantially all forces imparted to the system by the motor for rotating the table lie in a plane which is substantially perpendicular to said axis of rotation and which contains said pivot axis; and closed loop velocity control means for controllably driving the induction motor to drive the support table up or down to a predetermined rotational speed and to thereafter maintain the table of rotation at said predetermined speed. | ||||||
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