Data Acquisition System.pptx by fwo93561

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Data Acquisition System



Jody J. Nelson, Sr. Advisor, Energy Storage Technologies
     Outline

     • Data acquisition system (DAS) will be provided to every 
       Team 
     • Every Team must have DAS installed – Requirement
     • Objectives and system overview for competition
     • Description of hardware being provided
     • Introduction of the DAS vendor
     • Sensors – appropriate sensors to estimate MPGe and 
       emissions will be provided
     • Website
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     What is a Data Acquisition System (DAS)?
            ll               l h       l h l                  d
     A DAS allows you to sample physical vehicle parameters and 
     analyze them
     Ph i l         t i l d
     Physical parameters include:
     •    Voltages (12 V battery, HV battery, on‐board power supplies)
     •    Currents (HV dc, traction motor, dc/dc converter)
          C       t (HV d t ti         t d /d           t )
     •    Temperatures (motor, traction inverter temperature, cabin 
              p
          temperature) )
     •    Speeds (engine rpm, traction motor rpm, vehicle)
     •    Fluid flow
     •    Pressure
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     What is a Data Acquisition System (DAS)?
     Components of a DAS include:
     • Sensors and signal conditioning; converting 
                      g               g;          g
       physical parameters to electrical signals
       Analog to digital (A/D) converters converting 
     • Analog‐to‐digital (A/D) converters converting
       conditioned sensor signals to digital values
       Some means to acquire the data and then 
     • Some means to acquire the data and then
       display, analyze and/or record the data


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     DAS Example
                                                                                  End User:
                                                                                    On board display
                                                                                  • On‐board display
               Physical               Sensor +                                    • Storage
               Source                 Circuitry                 A/D               • DAS SW
                                                                                  • Diagnostic SW
                                                                                  • CAN
                                                                        1100100
                 12 V                                  0‐5 V
           +               ‐                                            1010…




                 Physical Voltage Range         0              18       [V]
                                                0.25       4.75
                     Scaled Voltage       0                           5 [V]

                                              Failed Sensor Reading
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     Preferred DAS Arrangement


         On vehicle – provided by Teams

                                                            1100100
                 12 V                         0‐5 V
           +               ‐                                1010…
                                  Sensor +            A/D
               Physical 
               Physical           Circuitry
                                          y                           End User
                                                                      End User
               Source




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     Acceptable DAS Arrangement


         On vehicle – provided by Teams

                                                            1100100
                 12 V                         0‐5 V
           +               ‐                                1010…
                                  Sensor +            A/D
               Physical
               Physical           Circuitry                           End User
                                                                      End User
               Source




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     Controller Area Network (CAN)
     CAN is a standard serial bus with multiple masters and is used for 
     CAN is a standard serial bus with multiple masters and is used for
     interconnecting all electronic control units (ECU) of a vehicle

     •    ISO 11898 provides specifications on CAN
          ISO 11898 provides specifications on CAN
     •    ISO 15765 is the legislated OBD‐compliant specification on 
          diagnostics using CAN

     Note: As of 2008, all vehicles sold in the United States are required to 
     have CAN and to meet ISO 15765‐4 (Road vehicles ‐‐ Diagnostics on 
            ll               k (     )                         f
     Controller Area Networks (CAN) ‐‐ Part 4: Requirements for emissions‐
     related systems)

     If you have a combustion engine, be aware of OBD and California Air 
     Resources Board (CARB) requirements
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     Objectives of DAS

       • Provide Teams with capability of 
         troubleshooting vehicle
       • Provide data for the educational website, 
          p          y
         sponsored by the DOE
               • Displaying vehicle position, approximate MPGe, 
                 approximate emissions
       • Allow for policing Teams during competition 
         events

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     Overall System Overview

                   Data Acquisition System On‐Board Modem

        Vehicle 
        Vehicle                                               Receiving 
                                                              Receiving
       Interface
                           DAS              OBM                System
                                                                              LES       Website

     •Analog           •Data Logger      •Cellular          •Cellular      •Book of 
     or                •Analog I/O       Modem              Provider       Record
      CAN 
     •CAN               CAN Interface
                       •CAN Interface                                       Data 
                                                                           •Data
     or                •Power Supply                                       Processing
     •Analog & CAN     •GPS Receiver                                       •Data 
                       •NVM                                                Formatting
                                                                           •Database



    Provided by Progressive Insurance Automotive X PRIZE
    Scheduled to be shipped the end of February
    Scheduled to be shipped the end of February


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     Provided System Overview
     An instruction 
     An instruction                  Vehicle Data Network
                                                                    6x Analog   6x Analog

     manual and limited                J1708     CAN 2.0B            (16 bit)    (16 bit)



     phone support will 
     be provided       4x Digital
                                                                                                     USB
                                                                                                  Thumb Drive

                       6x Analog
                        (12 bit)                                                                        RS-232
                                                                                                      (Service Tool)
                      2x Frequency
                                                     MT-30
                                                     MT 30
                                               Telematics Product                                       RS-232
                                                                                                      (Serial Device)
                      2x High Side
                         Drivers
                                                                                                        Vehicle
                                                                                                        Power
                                                                                                        P




                                                                                             OPTION
                                                   GSM/GPRS
                                                850/900/1800/1900
                                                                                            STANDARD
                                               Wireless Networks



CONFIDENTIAL
     DAS: MT‐30 from Morey Corporation
     •    Quad‐Band GSM/ Satcom O i
          Q d B d GSM/ S             Optional l
     •    GPS
     •    uCLinux OS
     •    32 bit Core/32M/32M
          32‐bit Core/32M/32M
     •    USB 1.1 Host, 2x RS232
     •    RTC/HW Watchdog
     •    (4) Digital inputs
          (4) Digital inputs
     •    (6) Analog (10/12bit) inputs
     •    (2) Frequency inputs
     •    ( )         g(     ) p     p
          (12) Analog (16bit) input optional 
                                                  Use Case: 
     •    2 HSD outputs
                                                  • Designed for Automotive Environments
     •    CAN J1939
                                                  • Optional Multi‐Mode Wireless 
     •    IP67                                      Communications
     •    12/24V                                  • Multiple Sensors and Vehicle Interface 


CONFIDENTIAL
     OBM: GPS and cellular antenna
                          (                      )
      3.9 x 2.6 x 0.8 in. (100 mm x 66 mm x 21 mm)
      0.35 oz. (151 g)
      < 25 mA @ 5V
      < 25 mA @ 5V




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     Custom Cable Harness Made for Each Vehicle




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An Introduction to the 
Morey Corporation


Emad S. Isaac, Chief Technical Officer, Morey Corp.
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               We make




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          Ruggedized Electronics




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               Commercial




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               Industrial



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               Construction



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               Agricultural



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               Military



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               Displays
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               Controllers
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               Telematics
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   When I say “Ruggedized”



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               What I mean



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               ≠


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         Given the cost of the 
         Given the cost of the
             equ p e t
             equipment



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        wouldn t it have been 
        wouldn’t it have been
              better



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if the vehicle itself called for 
if the vehicle itself called for
help the instant it 
happened? 


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      > Message from Unit ID: [U-157]

      > Help!

> I've fallen, and I can’t get up
      > end transmission

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       What if the whole thing could 
       What if the whole thing could
       have been prevented?
       have been prevented?



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                   Telematics
               Telemetry + Informatics




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        “The potential for collection, 
        aggregation, and storage of pertinent 
        aggregation and storage of pertinent
        data, that can be digested locally, or 
        post‐processed remotely.”
                                   ‐ E.S. Isaac



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    One Size Does Not Fit All



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        General Vehicle Signals
  No.   Signal Name                                       Description                                           Range       Unit
   1     Accel_Pos    Accelerator pedal position                                                                0 ‐ 100       %
   2     Brake_Pos    Brake pedal position                                                                      0 ‐ 100       %
   3       VS_Veh     Vehicle speed as provided by vehicle
                                p       p          y                                                            0 ‐ 200       p
                                                                                                                            mph
   4      EM_RPM      Traction motor speed                                                                   0 ‐ 15,000     rpm
   5       EM_pwr     Traction motor power                                                                      0 ‐ 225      kW
   6      HVBat_V     HV traction battery voltage                                                               0 ‐ 600       V
   7       HVBat_I    HV traction battery current                                                          (‐1000) ‐ 1000     A
   8     HVBat_SOC    HV traction battery State of Charge                                                       0 ‐ 100       %
   9    HVBat_Temp    HV traction battery temperature (maximum)                                               (‐20) ‐ 60      C
  10      EM_Temp     Electric motor temperature (maximum)                                                   (‐20) ‐ 200      C
  11      PE_Temp     Power electronics temperature (maximum)                                                (‐20) ‐ 150      C
  12      E RPM
          Eng_RPM     Engine speed
                      E i          d                                                                           0 7000
                                                                                                               0 ‐ 7000     rpm
  13       Eng_pwr    Indicated engine power                                                                    0 ‐ 225      kW
  14     Eng_Temp     Engine oil temperature                                                                    0 ‐ 120       C
  15      Fuel_Lev    Fuel level (sensor in vehicle removable tank or pressure sensor for gaseous fuels)        0 ‐ 100       %
  16     Fuel_Flow
         Fuel Flow    Fuel injector flow rate 
                      Fuel injector flow rate                                                                   0  200
                                                                                                                0 ‐ 200     lb/h




CONFIDENTIAL
     Sensors
     Sensors are a critical aspect to the quality of the data
     Sensors are a critical aspect to the quality of the data

     Two important parameters are for the calculations of MPGe and emissions. 
     Five powertrains need to be considered (distance is required on all 
     powertrains):

     (a) ICE – Gasoline (including HEV):              (d) HEV/PHEV:
           i.    Fuel flow sensor                          i.    HV dc current sensor
     (b) ICE – Diesel (including HEV):                     ii.   HV dc voltage sensor
           i.    MAF + O2 sensors or ECM based             iii. + appropriate ICE 
                 fuel flow                                      sensor from (a) or (b)
     (c) BEV:                                              iv. SOC
           i.    HV dc current sensor                 (e) CNG:
           ii.   HV dc voltage sensor                      i.    Pressure sensor
           iii. SOC                                        ii.   Temperature sensor
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     Sensors – Fuel Flow Sensor




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     Sensors – MAF + O2
                                 d      l d
                          • Needs regulated excitation 
                            power & signal conditioning 
                            Need to weld fit into exhaust
                          • Need to weld fit into exhaust
                            with a desired 0.5 meter 
                            straight section 
                             h d/b hi d MAF t
                            ahead/behind MAF to 
                            reduce turbulence




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     Sensors – HV Current and Voltage
   Off the shelf EVision:
   Off‐the‐shelf EVision:
   • Instantaneous voltage (V), 
       current (A), and power (W)
   • C       t        it (Ah)
       Current capacity (Ah), energy 
       (kWh), SOC (%), and 
       temperature (C)

   Many other solutions available: 




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     Sensors – Transponder

  To be provided to 
  Teams; type is still 
  under discussion
  under discussion




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     Summary
     •    Teams will be provided with the Morey DAS with external antenna
          T      ill b      id d i h h M        DAS i h         l
          •    Provided DAS must be installed in all vehicles
          •    Scheduled to be shipped the end of February, 2010
          •    Teams will be provided phone assistance, if needed, for installing the 
               Morey DAS system properly
     •    The DAS must be fully operating by the time of the Shakedown event and 
          The DAS must be fully operating by the time of the Shakedown event and
          will be tested during vehicle inspections
     •    Teams will be provided with appropriate sensor for determining MPGe and 
          emissions; additionally, Teams will be provided transponders
          emissions; additionally Teams will be provided transponders
     •    Teams must complete the DAS questionnaire and provide feedback on their 
          vehicle communication system and existing sensors – critical for the proper 
          design of the DAS; follow up questions may be required
          design of the DAS; follow‐up questions may be required


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