Methods Of Calibrating Positions Of Wheels In An Automated Guided Vehicle, And Automated Guided Vehicle

    公开(公告)号:US20220205872A1

    公开(公告)日:2022-06-30

    申请号:US17596788

    申请日:2019-06-26

    申请人: ABB Schweiz AG

    发明人: Jonatan Blom

    IPC分类号: G01M17/013 G01M17/06

    摘要: A method of calibrating positions of wheels in an AGV, the method including positioning a second wheel tangentially on an imaginary second circle centered with respect to a center position in which a first wheel is fixed; driving the second wheel a second distance along the second circle such that the AGV rotates about the center position; determining the second distance based on data from a second wheel sensor device of the second wheel; determining an angle of rotation about the center position based on data from a first steering sensor device of the first wheel during the rotation of the AGV; and determining relative positions between the first wheel and the second wheel based on the second distance and the angle of rotation. An AGV is also provided.

    Landing gear shock absorber servicing

    公开(公告)号:US11254448B2

    公开(公告)日:2022-02-22

    申请号:US16257868

    申请日:2019-01-25

    摘要: A method and apparatus for servicing a shock absorber on a landing gear assembly of an aircraft in a weight-on-wheels state is disclosed. The shock absorber includes at least one chamber containing both hydraulic fluid and a gas in fluid communication with each other. The apparatus includes a source of gas and a source of hydraulic fluid. The amount of hydraulic fluid in the chamber is corrected, preferably such that the chamber is then filled with a known amount of degassed hydraulic fluid. The process may be at least semi-automatically performed, for example under the control of a control unit. By delivering a pre-set mass of gas into the chamber, there is no need to rely on a measure of gas pressure or H-dimension (h) when servicing the shock absorber, and more accurate servicing of a shock absorber may thus be provided.

    Wheel Force Transducer Stator Angle Correction Device

    公开(公告)号:US20210278318A1

    公开(公告)日:2021-09-09

    申请号:US17329702

    申请日:2021-05-25

    IPC分类号: G01M17/013 G01L25/00

    摘要: A stator angle is determined to correct a value measured by a wheel force transducer. A mounting bracket is rigidly attached to a vehicle and supports a housing within which a rotary encoder is mounted. A stator rod retainer is aligned with a rotational axis of the rotary encoder and has a through-bore extending perpendicular to the rotational axis. The stator rod retainer rotates relative to a stationary portion of the rotary encoder using at least one bearing, and the stator rod retainer supports a first end of a stator rod for substantially free movement through the through-bore. A controller determines, when the second end of the stator rod is fixedly attached to an encoder stator attached to a wheel, a stator angle of the stator rod used for adjusting at least one value associated with the wheel that is measured using the encoder stator.

    Apparatuses for encoding and decoding wheel speed sensor signals and methods for communicating encoded wheel speed sensor signals

    公开(公告)号:US11049387B2

    公开(公告)日:2021-06-29

    申请号:US15844672

    申请日:2017-12-18

    摘要: A signal encoder for encoding a wheel speed sensor signal includes an input interface. The input interface is configured to receive a wheel speed sensor signal providing speed information and additional information. Furthermore, the signal encoder includes a signal processing circuit. The signal processing circuit is configured to generate a first and a second speed pulse. A time interval between the first and the second speed pulse corresponds to the speed information. Additionally, the signal processing circuit is configured to generate a data pulse between the first and the second speed pulse based on the additional information. The generation of the data pulse is in in accordance with a modulation scheme having a modulation order of at least three. Furthermore, the signal encoder includes an output interface. The output interface is configured to sequentially output the first speed pulse, the data pulse, and the second speed pulse.

    MEASUREMENT DEVICE AND KIT AND METHODS OF MAKING AND USING THE SAME

    公开(公告)号:US20210063132A1

    公开(公告)日:2021-03-04

    申请号:US16553913

    申请日:2019-08-28

    发明人: Claude LAWRENCE

    IPC分类号: G01B5/10 G01B5/30 G01M17/013

    摘要: A measurement device can include a plurality of wheel support modules. Each of the wheel support modules can be configured to attach to a different type of vehicle wheel and to provide for rotation of the vehicle wheel about an axis. An arm can be removably attached to the first wheel support module. A measurement element that measures deformation of the vehicle wheel can be moveably attached to the arm. The different configuration of each of the wheel support modules allows for various types of vehicle wheels to be measured for deformation using the same measurement device.

    Comprehensive performance test system for automated driving vehicles

    公开(公告)号:US10801924B2

    公开(公告)日:2020-10-13

    申请号:US16301678

    申请日:2018-04-13

    摘要: A comprehensive performance test system for Automated Driving Vehicles related to the technical field of vehicle testing equipment. It solves the technical problem of testing Automated Driving Vehicles. The system comprises a base platform, a lateral moving platform mounted on the base platform, and a rotary platform mounted on the lateral moving platform; There are two front wheels' brackets in the front of the rotary platform which can slide left and right, and two front wheel track adjustment mechanisms to control the movement of left and right sliding of two front wheels' brackets; There are two rear wheels' brackets on the rear of the rotary platform which can slide front and back, and two wheelbase adjustment mechanisms to control the movement of front and rear sliding of two rear wheels' brackets. Each front wheel bracket is equipped with a dynamometer bracket which can rotate horizontally, and each front wheel dynamometer bracket is equipped with a rotary dynamometer and a motor for driving the rotation of the front wheel dynamometer. Each rear wheel bracket is equipped with a rear wheel rotary dynamometer and a load motor for driving the rotation of the real wheel rotary dynamometer. The system provided by the invention can test the longitudinal and lateral performance of Automated Driving Vehicles.

    Wheel sensor cooling
    59.
    发明授权

    公开(公告)号:US10801922B2

    公开(公告)日:2020-10-13

    申请号:US15772506

    申请日:2016-10-31

    申请人: Wheely-Safe Ltd.

    发明人: Gary Broadfield

    摘要: A sensing device (200) for fitting at an inner surface of a wheel (222) and configured to abut a wheel hub (224) when the wheel (222) is fitted to a vehicle, the device (200) comprising: a movement sensor (602) for detecting movement of the device away from the wheel hub (224), the movement sensor (602) being located within a sensor housing (202); and a temperature sensor (606) configured to measure a temperature indicative of brake temperature.

    System for determining conicity of a wheel based on measured vibrations

    公开(公告)号:US10775271B2

    公开(公告)日:2020-09-15

    申请号:US15370749

    申请日:2016-12-06

    摘要: A sensor system includes one or more sensors that sense vibrations of a vehicle and one or more processors that can determine a speed of the vehicle and determine whether the vibrations occurring at one or more frequencies of interest (that are based on the speed of the vehicle) indicate damage to a propulsion system of the vehicle. The one or more processors optionally may determine a hunting frequency of a wheel and axle set and/or a lateral acceleration of the wheel and axle set from the vibrations. The one or more processors can determine a conicity of a wheel in the wheel and axle set based on the hunting frequency and/or the lateral acceleration that is determined.