Mts SWIFT 30 Sensor Manuale Utente

be certain.mSpinning Wheel Integrated Force TransducerFor Passenger VehiclesSWIFT® 30 SensorProduct Information100-026-689 F

SWIFT 30 Sensors10Technical SupportProblem Submittal Form in MTS ManualsUse the Problem Submittal Form to communicate problems you are experiencing wi

SWIFT 30 Sensors100Road SimulatorInstalling the TransducerEquipment required This procedure requires one person. To install the transducer, you will n

Road SimulatorSWIFT 30 Sensors Installing the Transducer101Attaching SWIFT Components to the FixturingNote Install the transducer in so that the orien

SWIFT 30 Sensors102Road SimulatorInstalling the TransducerNote To minimize negative clamping effects, you must torque the bolts in the sequence shown.

Road SimulatorSWIFT 30 Sensors Installing the Transducer1038. Attach the appropriate cables from the connector housing or one cable from the slip ring

SWIFT 30 Sensors104Road SimulatorInstalling the TransducerZeroing the Transducer Interface Non-spinning method For the non-spinning zero method, the c

Communication ConfigurationsSWIFT 30 Sensors Installing the Transducer105Communication ConfigurationsCommunication between a SWIFT TI and a remote hos

SWIFT 30 Sensors106Cable ConfigurationsInstalling the TransducerCable ConfigurationsSWIFT TI to PC Host (9-pin)The following cable (MTS p/n 510741-XX)

Cable ConfigurationsSWIFT 30 Sensors Installing the Transducer107Termination JumperThe following jumper plug (MTS p/n 510743-01) is used to terminate

SWIFT 30 Sensors108Cable ConfigurationsInstalling the Transducer

SWIFT 30 Sensors Analyzing SWIFT Data109Analyzing SWIFT DataOverview This chapter contains examples of data collected from SWIFT installations, and ex

SWIFT 30 Sensors Preface11PrefaceBefore You BeginSafety first! Before you attempt to use your MTS product or system, read and understand the Safety ma

SWIFT 30 Sensors110The DataAnalyzing SWIFT DataThe DataThe following figure shows handling data taken on a flat, winding surface, using a SWIFT sensor

Fx Data (Longitudinal Force)SWIFT 30 Sensors Analyzing SWIFT Data111Fx Data (Longitudinal Force)This figure shows the Fx (longitudinal force) data. •

SWIFT 30 Sensors112Fx Data (Longitudinal Force)Analyzing SWIFT DataThe following figure illustrates the relationship between Fx and Mz, for this test

Fz Data (Vertical Force)SWIFT 30 Sensors Analyzing SWIFT Data113Fz Data (Vertical Force)The offset force in the Z direction is the combined weight of

SWIFT 30 Sensors114Mx Data (Overturning Moment)Analyzing SWIFT DataMx Data (Overturning Moment)The moment Mx is the resultant of the forces Fz and Fy,

Mx Data (Overturning Moment)SWIFT 30 Sensors Analyzing SWIFT Data115Channel 4 Mx Data The following figure shows the relationship between Mx, Fz, and

SWIFT 30 Sensors116Mx Data (Overturning Moment)Analyzing SWIFT DataMx (wheel off ground) = Fz (active weight of the tire and rim outside the transduce

My Data (Brake Moment)SWIFT 30 Sensors Analyzing SWIFT Data117My Data (Brake Moment)The moment My should show strong similarities with the force Fx an

SWIFT 30 Sensors118My Data (Brake Moment)Analyzing SWIFT DataThe relationship between Fx and My is shown in the following time history plot:

Acceleration and Braking Events ExampleSWIFT 30 Sensors Analyzing SWIFT Data119Acceleration and Braking Events ExampleShown below is actual road data

SWIFT 30 Sensors12ConventionsPrefaceConventionsDocumentation ConventionsThe following paragraphs describe some of the conventions that are used in you

SWIFT 30 Sensors120Acceleration and Braking Events ExampleAnalyzing SWIFT DataMz: The Mz output noted is corrected to give the aligning moment at the

Slalom Curve Driving ExampleSWIFT 30 Sensors Analyzing SWIFT Data121Slalom Curve Driving ExampleShown below is actual road data taken with the MTS SWI

SWIFT 30 Sensors122Slalom Curve Driving ExampleAnalyzing SWIFT Data

SWIFT 30 Sensors Maintenance123MaintenanceOverview This chapter contains scheduling guidelines and detailed instructions for performing maintenance—a

SWIFT 30 Sensors124MaintenanceTransducerThe transducer requires a minimum amount of maintenance.Do not pressure-wash the transducer or clean it with s

SWIFT 30 Sensors Maintenance125Transducer InterfaceThe electronics for your transducer require a minimum amount of maintenance. Ensure that they remai

SWIFT 30 Sensors126MaintenanceCablesMonthly Inspect all electrical cables monthly, or after every 160 hours of operation. Always turn off the electri

SWIFT 30 Sensors Troubleshooting127TroubleshootingThis chapter covers basic set-up related troubleshooting tips. Please read this chapter to investiga

SWIFT 30 Sensors128TroubleshootingTroubleshooting Guide (part 1 of 12)SYMPTOM POSSIBLE CAUSES SOLUTIONTransducer Interface (TI) does not power up (gr

SWIFT 30 Sensors Troubleshooting129Spinning Zero Procedure: The Bridge Zero and Angle Zero indicators stay on too long, or they continue to blink slow

ConventionsSWIFT 30 Sensors Preface13Hypertext links The electronic document has many hypertext links displayed in a blue font. All blue words in the

SWIFT 30 Sensors130TroubleshootingZero Offset: One or more Signal Outputs appears to have a zero offset after the TI electronics have been zeroed.The

SWIFT 30 Sensors Troubleshooting131Zero Offset: One or more Signal Outputs appears to have a zero offset after the TI electronics have been zeroed. (C

SWIFT 30 Sensors132TroubleshootingZero Offset: One or more Signal Outputs appears to have a zero offset after the TI electronics have been zeroed. (Co

SWIFT 30 Sensors Troubleshooting133The data acquisition scales are set incorrectly.Check that the data acquisition scales are set correctly. The full

SWIFT 30 Sensors134TroubleshootingExcessive noise on the signal caused the shunt tolerance to be exceeded.Electrical Noise: The SWIFT sensor has power

SWIFT 30 Sensors Troubleshooting135Shunt cable problems. If the ShuntDeltaMeas values are not the same as (or within tolerance of the ShuntDeltaRef va

SWIFT 30 Sensors136TroubleshootingThe output signal polarity is incorrectThe OutputPolarities setting is incorrectThe TI electronics can be set to cha

SWIFT 30 Sensors Troubleshooting137Spinning Application: Vehicle Coordinate System Outputs have unusual or incorrect waveform shapes to them. A one-ti

SWIFT 30 Sensors138TroubleshootingA two-time-per-revolution of tire signal is showing up when the vehicle is driving straight on a flat surface.Gain s

SWIFT 30 Sensors Troubleshooting139Spinning Application: Vehicle Coordinate System Outputs have unusual or incorrect waveform shapes to them. (Continu

SWIFT 30 Sensors14ConventionsPreface

SWIFT 30 Sensors140Troubleshooting

SWIFT 30 Sensors Assembly Drawings141Assembly DrawingsThis chapter contains the assembly drawings and parts lists relevant to the SWIFT 30 transducers

SWIFT 30 Sensors142Cable DrawingsAssembly DrawingsCable DrawingsCable Part NumbersPART NUMBER CABLE DESCRIPTION377661-XX Ground cable494749-XX BNC cab

SWIFT 30 Sensors Hardware Overview15Hardware OverviewOverview The MTS Spinning Wheel Integrated Force Transducer (SWIFT®) is a light-weight, easy-to-u

SWIFT 30 Sensors156Cable DrawingsAssembly Drawings

SWIFT 30 Mechanical PartsSWIFT 30 Sensors Assembly Drawings157SWIFT 30 Mechanical PartsSWIFT 30 Mechanical Part NumbersPART NUMBER PART DESCRIPTION534

SWIFT 30 Sensors16Spinning Applications (Test Track)Hardware OverviewSpinning Applications (Test Track) The SWIFT sensor can be used for road load dat

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SWIFT 30 Sensors164SWIFT 30 Mechanical PartsAssembly Drawings

Common PartsSWIFT 30 Sensors Assembly Drawings165Common PartsCommon Parts for Mounting Either the SWIFT 30A or SWIFT 30T TransducerPART NUMBER DESCRIP

Non-spinning Applications (Simulation Lab)SWIFT 30 Sensors Hardware Overview17Non-spinning Applications (Simulation Lab)The SWIFT sensor can be fully

mMTS Systems Corporation14000 Technology DriveEden Prairie, Minnesota 55344-2290 USAToll Free Phone: 800-328-2255 (within the U.S. or Canada)Phone: 95

SWIFT 30 Sensors18ConstructionHardware OverviewConstructionThe SWIFT sensor has one-piece construction for outstanding fatigue life, low hysteresis, a

ConstructionSWIFT 30 Sensors Hardware Overview19Hub adapter The hub adapter attaches to the inner diameter of the transducer, allowing you to place it

2Copyright information © 1999, 2000, 2005, 2006, 2008 MTS Systems Corporation. All rights reserved.Trademark information MTS, SWIFT, TestStar, and Tes

SWIFT 30 Sensors20ConstructionHardware OverviewThe anti-rotate device should be configured such that no loading occurs to the slip ring throughout all

ConstructionSWIFT 30 Sensors Hardware Overview21Transducer Interface(TI)The TI conditions the power supply, and uses previously stored calibration val

SWIFT 30 Sensors22ConstructionHardware OverviewDesign FeaturesFlexure isolation The SWIFT sensor has a very stiff outer ring and flexured beam isolati

Coordinate SystemSWIFT 30 Sensors Hardware Overview23Coordinate SystemIn the transducer, independent strain gage bridges measure forces and moments ab

SWIFT 30 Sensors24Coordinate SystemHardware OverviewThe SWIFT coordinate system is transducer-based, with the origin located at the center of the tran

SpecificationsSWIFT 30 Sensors Hardware Overview25SpecificationsSWIFT 30 Transducer Performance PARAMETER SPECIFICATIONUseSWIFT 30 A (aluminum) forSWI

SWIFT 30 Sensors26SpecificationsHardware OverviewTransducer Center-of-GravityTransducer Center-of-Gravity and Inertia SpecificationsMATERIALALUMINUM T

SpecificationsSWIFT 30 Sensors Hardware Overview27Power RequirementsInput voltageSupply currentFuse10–17 V DC2 A typical, 3 A maximum at 12 V DC3 A fa

SWIFT 30 Sensors28SpecificationsHardware OverviewTransducer Interface Communications PARAMETER SPECIFICATIONCommunications Channel # 1(Remote Host Co

CalibrationSWIFT 30 Sensors Hardware Overview29CalibrationEach transducer is calibrated by MTS before shipment. The transducer and TI may be returned

SWIFT 30 Sensors Contents3ContentsTechnical Support 7How to Get Technical Support 7Before You Contact MTS 7If You Contact MTS by Phone 9Pr

SWIFT 30 Sensors30CalibrationHardware OverviewWhen you press the Shunt button, the associated Shunt LED lights. As the TI automatically switches throu

Transducer InterfaceSWIFT 30 Sensors Hardware Overview31Transducer InterfaceThe TI performs cross talk compensation, transforms the loads from a rotat

SWIFT 30 Sensors32Transducer InterfaceHardware OverviewThe TI transforms eight inputs (amplified bridge signals) into three forces and three moments b

Transducer InterfaceSWIFT 30 Sensors Hardware Overview33The angle output for a tire rotating at constant velocity can be represented by the following

SWIFT 30 Sensors34Transducer InterfaceHardware OverviewTI Front PanelTransducer Interface Front PanelFuse (F1) A 3A fuse protects the electronics.Powe

Transducer InterfaceSWIFT 30 Sensors Hardware Overview35Angle Zero and BridgeZero switchesThese switches are used to zero the transducer inputs. Which

SWIFT 30 Sensors36Transducer InterfaceHardware OverviewWhen a system zero is initiated, the associated LED is lit. After successful completion of the

Transducer InterfaceSWIFT 30 Sensors Hardware Overview37Zero LEDs These indicators indicate the current state of the zero process. The ZeroAlgorithm v

SWIFT 30 Sensors38Transducer InterfaceHardware OverviewAddress selector Each TI in a communications chain has a unique address. This address is used i

Transducer InterfaceSWIFT 30 Sensors Hardware Overview39Error Codes for the Fail Indicator (part 1 of 2)FAIL INDICATOR STATE[NUMBER OF BLINKS:]ERRORO

SWIFT 30 Sensors4ContentsShunt Error Status 57Setting up the Transducer Interface 59Select a Zero Method 60Calibration File Elements 61Zer

SWIFT 30 Sensors40Transducer InterfaceHardware Overview18AD Init Error. An error occurred while attempting to initialize the TI A/Ds. The ability to p

Transducer InterfaceSWIFT 30 Sensors Hardware Overview41TI Rear PanelTransducer Interface Rear PanelJ4 Output connector The J4 Output connector provid

SWIFT 30 Sensors42Transducer InterfaceHardware OverviewTI JumpersThe transducer interface uses circuit board jumpers to establish certain parameters a

Interfacing with RPCSWIFT 30 Sensors Hardware Overview43Interfacing with RPCThe SWIFT sensor is directly compatible with the MTS Remote Parameter Cont

SWIFT 30 Sensors44Interfacing with RPCHardware Overview

SWIFT 30 Sensors Software Utilities45Software UtilitiesContents Introduction 46TISTATUS - Transducer Interface Status 47TIXFER - Transducer Inte

SWIFT 30 Sensors46IntroductionSoftware UtilitiesIntroductionThe SWIFT utility programs in this distribution are for Win32 Operating Systems (Windows 9

TISTATUS - Transducer Interface StatusSWIFT 30 Sensors Software Utilities47TISTATUS - Transducer Interface StatusThis program is used to get status in

SWIFT 30 Sensors48TIXFER - Transducer Interface TransferSoftware UtilitiesTIXFER - Transducer Interface TransferThis program is used to change setting

TIXFER - Transducer Interface TransferSWIFT 30 Sensors Software Utilities49Make important files read-only after uploading. After uploading important f

SWIFT 30 Sensors Contents5Maintenance 123Transducer 124Transducer Interface 125Cables 126Troubleshooting 127Assembly Drawings 141Cab

SWIFT 30 Sensors50TISHUNT - Transducer Interface ShuntSoftware UtilitiesTISHUNT - Transducer Interface ShuntThis program is a utility with various fun

TISHUNT - Transducer Interface ShuntSWIFT 30 Sensors Software Utilities51Option 0 Use this option to exit the program.Option 1 Use this option to read

SWIFT 30 Sensors52TISHUNT - Transducer Interface ShuntSoftware UtilitiesOption 3 Use this option to restore shunt settings from a file. The file forma

TISHUNT - Transducer Interface ShuntSWIFT 30 Sensors Software Utilities53Option 5 Use this option to command a Shunt Cal in the Transducer Interface.

SWIFT 30 Sensors54TISHUNT - Transducer Interface ShuntSoftware UtilitiesSetting Up Shunt Calibration Reference ValuesThe tishunt utility provides all

TISETZERO – Transducer Interface Set Zero MethodSWIFT 30 Sensors Software Utilities55TISETZERO – Transducer Interface Set Zero MethodThis program allo

SWIFT 30 Sensors56Error MessagesSoftware UtilitiesError MessagesWhen a SWIFT utility encounters an error, a traceback message is displayed. An example

Shunt Error StatusSWIFT 30 Sensors Software Utilities57Shunt Error StatusThis is the error status for each bridge from the last shunt cal that was per

SWIFT 30 Sensors58Shunt Error StatusSoftware Utilities

SWIFT 30 Sensors Setting up the Transducer Interface59Setting up the Transducer InterfaceOverview Two different software configurations are used by th

SWIFT 30 Sensors6Contents

SWIFT 30 Sensors60Select a Zero MethodSetting up the Transducer InterfaceSelect a Zero MethodBefore you install a transducer and zero it, you must con

Select a Zero MethodSWIFT 30 Sensors Setting up the Transducer Interface61Calibration File ElementsThe following figure shows some elements of the cal

SWIFT 30 Sensors62Select a Zero MethodSetting up the Transducer InterfaceZero AlgorithmsThe following table lists the different values available and t

Select a Zero MethodSWIFT 30 Sensors Setting up the Transducer Interface633Use this algorithm if you do not need to mechanically level the SWIFT senso

SWIFT 30 Sensors64Upload the Calibration FileSetting up the Transducer InterfaceUpload the Calibration FileA unique calibration file was loaded into t

Upload the Calibration FileSWIFT 30 Sensors Setting up the Transducer Interface658. TIXFER will prompt you when the file has uploaded.tixfer 1.7 beta

SWIFT 30 Sensors66Edit the Calibration FileSetting up the Transducer InterfaceEdit the Calibration FileDo not change any other items in the calibratio

Edit the Calibration FileSWIFT 30 Sensors Setting up the Transducer Interface672. If necessary, edit the value for OutputPolarities.This value sets th

SWIFT 30 Sensors68Edit the Calibration FileSetting up the Transducer Interface3. Perform this step for spinning application. For non-spinning applicat

Edit the Calibration FileSWIFT 30 Sensors Setting up the Transducer Interface69C. The AngleOffset value is used when you are operating in encoder mode

SWIFT 30 Sensors Technical Support7Technical SupportHow to Get Technical SupportStart with yourmanualsThe manuals supplied by MTS provide most of the

SWIFT 30 Sensors70Download the Calibration FileSetting up the Transducer InterfaceDownload the Calibration FileUse the program TIXFER to download the

Download the Calibration FileSWIFT 30 Sensors Setting up the Transducer Interface717. Enter 0 at the prompt to exit the program.tixfer 1.7 beta ((10/2

SWIFT 30 Sensors72Download the Calibration FileSetting up the Transducer Interface

SWIFT 30 Sensors Installing the Transducer73Installing the TransducerThe SWIFT sensor can be installed on a vehicle at the test track or on an MTS Ser

SWIFT 30 Sensors74Test Track VehicleInstalling the TransducerTest Track VehicleEquipment required This procedure requires one person. To install the S

Test Track VehicleSWIFT 30 Sensors Installing the Transducer75Installation Components (Test Track)Importance of bolts Bolts provide exceptional clamp

SWIFT 30 Sensors76Test Track VehicleInstalling the TransducerDo not use high-pressure-air to clean debris from around the transducer connectors. High-

Test Track VehicleSWIFT 30 Sensors Installing the Transducer77Do not allow the mounting arm or anti-rotate arm to bump against any portion of the whee

SWIFT 30 Sensors78Test Track VehicleInstalling the TransducerAttaching SWIFT Components to the VehicleProcedure 1. Remove the current wheel from the t

Test Track VehicleSWIFT 30 Sensors Installing the Transducer795. Attach the hub adapter to the transducer. Hand tighten the bolts.If environmental con

SWIFT 30 Sensors8Technical SupportKnow information fromprior technicalassistanceIf you have contacted MTS about this problem before, we can recall you

SWIFT 30 Sensors80Test Track VehicleInstalling the TransducerNote To minimize negative clamping effects, you must torque the bolts in the sequence sho

Test Track VehicleSWIFT 30 Sensors Installing the Transducer81Attaching SWIFT and Wheel Assembly to the Vehicle1. Before installing the SWIFT and whee

SWIFT 30 Sensors82Test Track VehicleInstalling the TransducerC. Measure, making bends as necessary, and cut the aluminum tube to size. MTS provides an

Test Track VehicleSWIFT 30 Sensors Installing the Transducer83Installing the Transducer Interface ElectronicsThe Transducer Interface (TI) electronics

SWIFT 30 Sensors84Test Track VehicleInstalling the Transducer3. Ground the TI and data recorder to the vehicle frame. (See the following figures.)Sugg

Test Track VehicleSWIFT 30 Sensors Installing the Transducer85Setting up the SWIFT Sensor for Data CollectionTo ensure accurate data collection, compl

SWIFT 30 Sensors86Test Track VehicleInstalling the TransducerChoosing a ZeromethodPreferred method—Zero Algorithm 4 is the preferred method for config

Test Track VehicleSWIFT 30 Sensors Installing the Transducer87This zero method samples all eight input bridges on every encoder tick, for one complete

SWIFT 30 Sensors88Test Track VehicleInstalling the TransducerA. Download the spinning calibration file (xxxxxs.cal) to the computer from the MTS Disk

Test Track VehicleSWIFT 30 Sensors Installing the Transducer89Note If the anti-rotate assembly interferes with the mounting of the digital inclinomete

SWIFT 30 Sensors Technical Support9If You Contact MTS by PhoneYour call will be registered by a Call Center agent if you are calling within the United

SWIFT 30 Sensors90Test Track VehicleInstalling the TransducerI. Place the digital inclinometer on the bracket and rotate the tire until the inclinomet

Test Track VehicleSWIFT 30 Sensors Installing the Transducer914. Run the TISTATUS program to compare the supply voltages to the reference voltages.Typ

SWIFT 30 Sensors92Test Track VehicleInstalling the TransducerNote The encoder has a red dot on the mounting flange connected to the slip-ring bracket

Test Track VehicleSWIFT 30 Sensors Installing the Transducer93Note The wheel must rotate one-half revolution in the same direction and then pass over

SWIFT 30 Sensors94Test Track VehicleInstalling the TransducerA. Push either the Angle Zero or Bridge Zero button on the front of the TI box. Both indi

Test Track VehicleSWIFT 30 Sensors Installing the Transducer95Verifying the Quality of the Zero ProcedurePerform the following consistency checks for

SWIFT 30 Sensors96Test Track VehicleInstalling the Transducer6. Verify that the outputs from the TI box matches those on the calibration report.Use ei

Test Track VehicleSWIFT 30 Sensors Installing the Transducer97Collecting DataAfter you zero the TI, you are ready to collect data. Note If you turn of

SWIFT 30 Sensors98Test Track VehicleInstalling the TransducerDo not allow the SWIFT assembly to bump into any hard surfaces while you are driving the

Road SimulatorSWIFT 30 Sensors Installing the Transducer99Road SimulatorBefore you begin Angular correction is required on the test track only. If you