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 CONFIDENTIAL
What is a Data Acquisition System (DAS)? A DAS allows you to sample physical vehicle parameters and analyze them Physical parameters include: Voltages (12 V battery, HV battery, on board power supplies) Currents (HV dc, traction ti motor, d/d dc/dc converter) Temperatures (motor, traction inverter temperature, cabin temperature) Speeds (engine rpm, traction motor rpm, vehicle) Fluid flow Pressure CONFIDENTIAL
What is a Data Acquisition System (DAS)? Components of a DAS include: Sensors and signal conditioning; converting physical parameters to electrical signals Analog to digital (A/D) converters converting conditioned sensor signals to digital values Some means to acquire the data and then display, analyze and/or record the data CONFIDENTIAL
DAS Example Physical Source Sensor + Circuitry A/D 1100100 + 12 V 0 5 V 1010 End User: On board display Storage DAS SW Diagnostic SW CAN Physical Voltage Range 0 18 [V] Scaled Voltage 0 0.25 4.75 5 [V] Failed Sensor Reading CONFIDENTIAL
Preferred DAS Arrangement On vehicle provided by Teams 1100100 + 12 V 0 5 V 1010 Sensor + A/D Physical Circuitry Source End User CONFIDENTIAL
Acceptable DAS Arrangement On vehicle provided by Teams 1100100 + 12 V 0 5 V 1010 Sensor + A/D Physical Circuitry Source End User CONFIDENTIAL
Controller Area Network (CAN) 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 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 Controller Area Networks (CAN) Part 4: Requirements for emissionsrelated systems) If you have a combustion engine, be aware of OBD and California Air Resources Board (CARB) requirements CONFIDENTIAL
Objectives of DAS Provide Teams with capability of troubleshooting vehicle Provide data for the educational website, sponsored by the DOE Displaying vehicle position, approximate MPGe, approximate emissions Allow for policing Teams during competition events CONFIDENTIAL
Overall System Overview Data Acquisition System On Board Modem Vehicle Interface DAS OBM Receiving System LES Website Analog or CAN or Analog & CAN Data Logger Analog I/O CAN Interface Power Supply GPS Receiver NVM Cellular Modem Cellular Provider Book of Record Data Processing Data Formatting Database Provided by Progressive Insurance Automotive X PRIZE Scheduled to be shipped the end of February CONFIDENTIAL
Provided System Overview An instruction manual and limited phone support will be provided 4x Digital Vehicle Data Network J1708 CAN 2.0B 6x Analog (16 bit) 6x Analog (16 bit) USB Thumb Drive 6x Analog (12 bit) 2x Frequency 2x High Side Drivers MT-30 Telematics Product RS-232 (Service Tool) RS-232 (Serial Device) Vehicle Power GSM/GPRS 850/900/1800/1900 Wireless Networks OPTION STANDARD CONFIDENTIAL
DAS: MT 30 from Morey Corporation Quad Band dgsm/ Satcom Optional GPS uclinux OS 32 bit Core/32M/32M USB 1.1 Host, 2x RS232 RTC/HW Watchdog (4) Digital inputs (6) Analog (10/12bit) inputs (2) Frequency inputs (12) Analog (16bit) input optional 2 HSD outputs CAN J1939 IP67 12/24V Use Case: Designed for Automotive Environments Optional Multi Mode Wireless Communications 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 CONFIDENTIAL
Custom Cable Harness Made for Each Vehicle CONFIDENTIAL
An Introduction to the Morey Corporation Emad S. Isaac, Chief Technical Officer, Morey Corp.
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL We make
CONFIDENTIAL Ruggedized Electronics
CONFIDENTIAL Commercial
CONFIDENTIAL Industrial
CONFIDENTIAL Construction
CONFIDENTIAL Agricultural
CONFIDENTIAL Military
CONFIDENTIAL Displays
CONFIDENTIAL Controllers
CONFIDENTIAL Telematics
When I say Ruggedized CONFIDENTIAL
CONFIDENTIAL What I mean
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
Given the cost of the equipment e CONFIDENTIAL
wouldn t it have been better CONFIDENTIAL
if the vehicle itself called for help the instant it happened? CONFIDENTIAL
> Message from Unit ID: [U-157] > Help! > I've fallen, and I can t get up > end transmission CONFIDENTIAL
What if the whole thing could have been prevented? CONFIDENTIAL
Telematics Telemetry + Informatics CONFIDENTIAL
The potential for collection, aggregation, and storage of pertinent data, that can be digested locally, or post processed remotely. E.S. Isaac CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
CONFIDENTIAL
One Size Does Not Fit All CONFIDENTIAL
CONFIDENTIAL
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 0 200 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 Eng_RPM Engine speed 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_FlowFlow Fuel injector flow rate 0 200 lb/h CONFIDENTIAL
Sensors 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): i. Fuel flow sensor (b) ICE Diesel(including HEV): i. MAF + O2 sensors or ECM based fuel flow (c) BEV: i. HV dc current sensor ii. HV dc voltage sensor iii. SOC CONFIDENTIAL (d) HEV/PHEV: i. HV dc current sensor ii. HV dc voltage sensor iii. + appropriate ICE sensor from (a) or (b) iv. SOC (e) CNG: i. Pressure sensor ii. Temperature sensor
Sensors Fuel Flow Sensor CONFIDENTIAL
Sensors MAF + O2 Needs regulated excitation power & signal conditioning Need to weld fit into exhaust with a desired 0.5 meter straight section ahead/behind hi dmaf to reduce turbulence CONFIDENTIAL
Sensors HV Current and Voltage Off the shelf EVision: Instantaneous voltage (V), current (A), and power (W) Current capacity (Ah), energy (kwh), SOC (%), and temperature (C) Many other solutions available: CONFIDENTIAL
Sensors Transponder To be provided to Teams; type is still under discussion CONFIDENTIAL
Summary Teams will be provided d with the Morey DAS with external antenna 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 will be tested during vehicle inspections Teams will be provided with appropriate sensor for determining MPGe and emissions; additionally, Teams will beprovided transponders Teams must complete the DAS questionnaire and provide feedback on their vehicle communication system and existing sensors critical for the proper design ofthe DAS; follow upquestions may berequired CONFIDENTIAL