up coming requirements in calibration for alternative fuels
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8/12/2019 Up Coming Requirements in Calibration for Alternative Fuels
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Up Coming requirementsUp Coming requirements
in Calibration forin Calibration for
H.S.Sohi
AVL ITC, Gurgaon
Alternative Fuels
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Sophistication and increasing trend of Calibration
Calibration needs for Alternative Fuels
System integration process for reliable calibration
Managing complexity of system integration & monitoring
Medium type CNG / LPG Calibration Project
Additional Calibration requirements
AVL Advantages
OverviewOverview
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Sophistication of Powertrain to meet Emission, FE
targets, NVH, Driveability demands...
Engine Hardware Intake Air : VNT, TC with waste
gate, Swirl, VVT, VGIS etc.
No of valve / cylinder (2 to 4 valve)
Transmission
Several new gearbox concepts (MT,AT,CVT, 4WD...) Torque Limiting, Shift point strategy, Shifting comfort,
Clutch control etc...
Control Strategies Multi injection strategies Variable Fuel rail pressure After treatments strategies
HPL & LPL EGR
EGR Cooler & Cooler bypass etc..
DFCO Logics
OBD / EOBD, Diagnostic Trouble
Error (DTC) & MIL management etc.
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Calibration parameters of sophisticated Power trains
3.000 calibration parameters
Time for Calibration work:
20 months = 360 days
Calibration team:
10 Calibration engineers
18 Calibration Parameters18 Calibration Parameters
to be calibratedto be calibrated
per day per staff memberper day per staff member
5 vehicle Variants
Example
10,000 calibration parameters
(10000+3000) X 5 = 65000 / 360 = 180/10 = 18,(10000+3000) X 5 = 65000 / 360 = 180/10 = 18,
Calibration parameter: constant value / characteristic /Calibration parameter: constant value / characteristic / mapmap
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Example: Increasing complexity of ECU ...
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2005 20101995 20152000
Actuators &sensors
Calibration parameter,
Applications effort
Development-
time
Automotive Industry trendAutomotive Industry trend
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Sophistication and increasing trend of Calibration
Calibration needs for Alternative Fuels
System integration process for reliable calibration
Managing complexity of system integration & monitoring
Medium type CNG / LPG Calibration Project
Additional Calibration requirements
AVL Advantages
OverviewOverview
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Alternative Fuels OverviewAlternative Fuels Overview
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Interfacing of Alternative Fuel Technologies in
existing Engine / New Engine
Transmission
DFCO Logic Optimization Torque limiting, Gear shift point strategy
Functionality related to Clutch control etc...
Change in Engine Hardware Higher Compression Ratio
Engine Cooling & Lubrication
Valve Timing Optimization
Fuel System Packaging
Valve Seat & Cylinder Head
Errors Handling MIL for sensor Failures
DTC errors Handling, Threshold limits
OBD / EOBD, EGAS monitoring etc
Adopting Alternative Fuel Alternative fuel components
Dual Fuel management
Close loop & EGAS logic
Mono & Bi Fuel / Ignition
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Example:Basic EMS Components for Injection Kit
ITEM Qty Remarks
VSS 1 Vehicle Speed Sensor
ECTS 1 Engine Coolant Temperature sensor
MAP + MAT 1 Manifold air pressure & Temperature
1 Mono Fuel1+1* * Bi-Fuel (Gasoline + CNG / LPG)
Ignition Coil *Option of Distributor OR Individual coil as
per # of Cylinders
Throttle Body 1* Option: Wire / Wire less
Injectors * * Depending on # of cylinders
TPS 1 Throttle position sensor
IAC 1 Idle Air control Valve
CNG /LPG Mono Fuel not required
Bi-Fuel (Gasoline-CNG / LPG Prefered)Heated Lambda Sensor
(Up Stream)1 BS-IV and for catalyst safety / OBD
Crank Angle Sensor 1
Camshaft Position Sensor 1
EGR Valve Option May be required for BS-IV / EURO IVAir Mass Flow Sensor Option With EGR closed loop control
Electronic Control Unit
*Knock Sensor
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Example : Close Loop Bi-Fuel layout for LPG(Gasoline + LPG Venturi Type)
Source Vialle
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Example : Bi-Fuel EMS layout for CNG(Gasoline + CNG Injection )
Source Omnitek
Sequential Injection (4 - Cyl.)
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Example : Bi-Fuel - Close Loop layout for LPG(Gasoline + LPG Injection)
Source Vialle
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Sophistication and increasing trend of Calibration
Calibration needs for Alternative Fuels
System integration process for reliable calibration
Managing complexity of system integration & monitoring
Medium type CNG / LPG Calibration Project
Additional Calibration requirements
AVL Advantages
OverviewOverview
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System integration for Reliable Calibration
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Kick-off meeting
Parts procurement (engines, vehicles, spares, data set, documentation)
Engine and vehicle built, instrumentation (installation of measurementequipment, run-in and correlation tests (to verify base data of
engine and vehicle and to verify correlation of facilities)
Initial pre-calibration on engine test bed and in vehicle (to verify
synchronization of all sensor and functionalities, hardware and
software concept, to check emission potential, to verify technical
and engineering targets)
Meeting with Customer(Result discussion, interim report, decision on furtherprocedure and time schedule)
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PROJECT START OEM / AVL
KICK-OFF MEETING / 1st ENGINE AVAILABLE OEM / AVL / FIE
1st VEHICLE AVAILABLE OEM / AVL
ENGINE & VEHICLE ASSESSMENT
Preparation Work AVL / OEM
Initial Steady State Engine Assessment AVL
Initial Vehicle Assessment AVL
montNo. Work Steps
Job split
OEM/AVL
Phase 1 : Start of the project
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Objective: Development of EMS calibration for series production, includingrobustness investigations and climate test trips.
Test to be organised to carry-out, post-process and analyse all tests necessary toachieve a robust calibration for series production. In the following the work scope isdescribed in detail for the following topics:
Emissions and FC development Cold Start
Driveability Optimization Altitude Calibration
Controllers and Driveability Climate Test Trips
Noise and NVH Robustness Investigations
OBD / EOBD / DTC Errors Pre-Data Set release
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2.2. PHASE 2: TEST BED CALIBRATION
2.2.1. Calibration Work on Engine Test Bed AVL
2.2.2. Transient Dynamometer Calibration AVL
2.2.3. Engine Power Homologation Test (OPTION) AVL / OEM
2.3. PHASE 3: VEHICLE DEVELOPMENT
2.3.1. Development Work Vehicle Concept A/T & Veh. C. M/T
2.3.2. Optimisation of Emissions and FC AVL
2.3.3. Controller Calibration, Driveability Development AVL
2.3.4. Check and Verification of Vehicle NVH AVL
2.3.5. Calibration of EOBD, verification of diagnosis AVL
2.3.6. Cold Calibration AVL
2.3.7. Verification of Hot Start and Drive-off AVL
2.3.8. Climate / High Altitude Testing AVL / OEM Sign-Off Test
2.3.9. PHASE 2/3: Robustness Investigations (OPTION) AVL
Work Steps Job splitOEM/AVLNo. months to SOP
W SS
Phase 2 : Calibration on Engine Test Bed & Vehicle
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Calibration activities till SOPCalibration activities till SOP
Engine base mapping (steadyEngine base mapping (steady--state / transient)state / transient) Engine & Vehicle performanceEngine & Vehicle performance (full load, limitations, etc.)(full load, limitations, etc.)
Emissions, Fuel consumption, Evaporative emissionsEmissions, Fuel consumption, Evaporative emissions
NVH optimisationNVH optimisation
Driveability calibrationDriveability calibration Knock controlKnock control
Exhaust gas after treatment systems calibrationExhaust gas after treatment systems calibration
Transmission calibrationTransmission calibration (shifting points, converter clutch, etc.)(shifting points, converter clutch, etc.)
Hot, Cold & Altitude calibrationHot, Cold & Altitude calibration CruiseCruise--control, Drivecontrol, Drive--byby--wire conceptwire concept
(E)OBD calibration, DTC errors etc(E)OBD calibration, DTC errors etc
Adaptation on market requirementsAdaptation on market requirements (fuel, driveability, emissions, etc.)(fuel, driveability, emissions, etc.)
Climate test tripsClimate test trips Service tester, End of line testingService tester, End of line testing
InterfacesInterfaces (transmission, traction(transmission, traction--control, etc.)control, etc.)
HomologationHomologation (full execution or preparation / support)(full execution or preparation / support)
PrePre--production validationproduction validation
Fleet support / managementFleet support / management (OBD fleet, durability fleet, etc.)(OBD fleet, durability fleet, etc.)
Production rampProduction ramp--up / Postup / Post--production supportproduction support
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Engine / Vehicle in the latest development status
Calibration data:
Pre-Masterdata set (for final evaluation at customer) File for each interim release
Calibration data comparison (DCM), comparing actual and previouscalibration, by means of the AVL Calibration Database, including writtendocumentation and corresponding test results
Reporting:
Monthly intermediate project reports containing updated schedule,
project progress and calibration progress
Special reports requested for certain milestones, including climate tests
Final project report
Deliverables
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Sophistication and increasing trend of Calibration
Calibration needs for Alternative Fuels
System integration process for reliable calibration
Managing complexity of system integration & monitoring
Medium type CNG / LPG Calibration Project
Additional Calibration requirements
AVL Advantages
OverviewOverview
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Defining- processes to be followed,
- methodologies to be used,
- tools to be applied
Setting- milestones and clear responsibilities
- release procedures
to guarantee the required SOP-quality
Calibration guidelines as part of a standardised
work flow
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0
1
2
3
4
5
Stat
us
C alibration Progress Plan Vehicle A
Dec.0
1
Aug.01
Oct.0
1
Feb.0
2
Apr.02
Jun.0
2
Aug.02
Oct.0
2
Dec.0
2
Feb.'0
3
Apr.'03
Jun.'0
3
Aug.'03
Oct.'0
3
Status "5" ... not calibrated yet
Status "3" ... calibrated, changes are expectedStatus "1" ... calibrated, no further changes expected
Vehicle B Vehicle C Vehicle D
Additional Ressources
Additional Ressources
Delayed
Parts / Vehicle
Availability
New Software Status
Monitoring of Calibration Progress
(Calibration Database - CRETA)
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Sophistication and increasing trend of Calibration
Calibration needs for Alternative Fuels
System integration process for reliable calibration
Managing complexity of system integration & monitoring
Medium type CNG / LPG Calibration Project
Additional Calibration requirements
AVL Advantages
OverviewOverview
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Calibration Project Duration (tentative):
PRIMARY TYPE MEDIUM TYPE LIGHT TYPE
New engine
calibration
Existing engine
calibration
Existing engine /
vehicle
re-calibration
First ECU SOPNew vehicle
calibration
Similar vehicle
class
New SW functions
to be calibrated
New emission
regulation(e.g BS-III to BS-IV)
Same Gear Type
(MT or AT)
New exhaust after
treatment
New FIE / Slight
change in engine
hardw are
No new SW
functionality
required
Intensive f leet
testing
Pow er limiting for
other variant
No change in
engine hardw are
~ 24 Months 15 ~ 18 Months 6 ~ 9 Months
DURATION / PERIOD
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Example:Material required for a Medium Type
Calibration Project
2 ~ 3 Engines : for Engine test bed along with Alternative Fuel Kit
1 - 2 engines for calibration (no. depending on scope of work)
1 spare engine
3 ~ 4 Vehicles :
1 Vehicle for emission calibration / robustness investigations
1 Vehicle for driveability calibration and climate test trips
1 Vehicle for OBD / EOBD and cross checks
1 pre-series vehicle for evaluation and fine tuning
Tools & Spares:Application ECU, A2l & Hex, Customer-specific
Calibration and diagnostic tool, Spares and Prototype parts etc..
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Engine
PUMA 5.5.Xor
PUMA 7
Pre CatEmission
Bench
P/K-Check
I670
INDI MasterIFEM
Charg
e
Amplifier
CAMEOIndi COM
ECU with ETK
INCA / FIE
specific
INCA VMEEMCON 300
Pedal-Simulator
TCP/IP ConnectionRS232 Connection
E
ngine
Stop
n-x
Control
Analog Connection
6x
1x
DAC
1x
8x+1x
ASAP1
ode
r
CANC
CP
Fuel / Gas
Flow meter
1x
ASAP3
ACISimulink
Intime RTC
CAN-Bus
Standard Test-bed Set-up for EMS Calibration(Example)
Post Cat
Emission
Bench
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Calibration Strategy for Alternative Fuels (CNG / LPG)
Selection of Suitable Alternative Fuel Components
Synchronization of all Signals and Functionalities
Injection control w.r.t Speed density and correction
with Lambda Values
Idle RPM control strategy for mono / bi-fuel with
Ambient, Coolant Temp.,Engine / Accessories load
and for Catalyst faster light off.
Multi-spark for better startability
Closed Loop control Fuel optimization using
Lambda sensor input from exhaust for best
combustion and catalyst efficiency
Fuel pressure related correction (Hysterics) and
OEM Fuel gauge linearity
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Calibration Strategy for Alternative Fuels (CNG / LPG)
DFCO (Deceleration Fuel Cut off) logic optimization for
better F.E and resume logic to prevent jerks during
driveability.
High Idle/ Fly up rpm control with fuel & spark cutoff.
Injection and Ignition map correction based on Engine
Coolant, Air Temperature, Battery Voltage etc.
MAP based Ignition Timing Control w.r.t RPM, Load &
Coolant Temp.
Cold Start and warm up Strategy (Separate MAP withinput from Lambda sensor and coolant temperature for
switch over)
OBD / EOBD Threshold limit set and verification test
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SELECTION OF LOCATION FOR CLIMATE TEST TRIPS:
Cold Temperature Option 1: (-10 ~ -15 0C) LEH in Himalayas, appox. 18000 ft
Option 2: (0 ~ 2
0
C) ROHTANG appox. 14000 ft
Hot Temperature in Plain areas (40 ~ 48 0C) in JAISALMER in Rajasthan
Altitude Test OOTY in South India, appox. 7500 ft, 25~ 30 0C & Humidity @ 80%
Verification of thermal stability (Cooling Performance of engine, A.C etc..)
Fine tuning of calibration during test trips
Evaluation of calibration along with OEM experts
FACILITIES:
Locations for test trips according to OEM requests / agreed procedures
Chassis Dynamometer, Public Roads, VRDE, AVL Test Track (HQ Graz)
Location for Calibration and Verification Tests
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Work content : Calibration requirements according to legislation / OEM
Calibration strategy for development of OBD / EOBD functionality
Emission related component (Air flow, EGR, O2 sensor, EGAS etc.) Fault memory management (MIL / DTC errors)
Generic Scan Tool adaptation on OEM service tester
Facilities :
Engine test bed
Emission chassis dynamometer
Road testing
Target specification :
Definition of customer OBD / EOBD strategy (if required)
Specification of MIL thresholds limits for error
Paperwork for OBD / EOBD certification requirements
Calibration: OBD / EOBD , Diagnostics
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Verification of the existing calibration regarding
Emissions, Fuel Consumption Targets (Engine / Vehicle)
Driveability and Controllers functionalities check
Diagnosis, OBD / EOBD , DTC errors etc
Cold start behaviour
Noise and NVH
Driving Evaluation along with OEM and Optimisation
Pre-Master Data Set updation, after final evaluation by
customer for FINAL DATA SET release.
Notes: Pre-production series vehicles must be available for 4 - 8 weeks
Calibration Fine Tuning on Pre- Production Vehicles
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Sophistication and increasing trend of Calibration
Calibration needs for Alternative Fuels
System integration process for reliable calibration
Managing complexity of system integration & monitoring
Medium type CNG / LPG Calibration Project
Additional Calibration requirements
AVL Advantages
OverviewOverview
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Work Content :
Emission, driveability checks on endurance fleet
Support during regular emission tests of fleet vehicles
Registration and statistical evaluation of fleet vehicle results
(e.g. fault memory, failures, emissions, DTC etc)
Correction in Pre-Dataset for OBD / EOBD
Notes:
Mileage accumulation generally performed by OEM
Fleet Testing / Vehicle Validation Tests
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Possible work share for homologation:
Emission demonstration test at AVL / OEM prior to
homologation
FTP Test on engine test bed at AVL / Support at agency
Fuel consumption test at AVL / Support for FC test at
agency
Full homologation entirely by AVL
Notes:
Homologation work share to be defined at project start
Homologation / Certification
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Definition of end-of-line tests and procedures (Flashing, VIN, IQA etc)
Trouble shooting in production ramp up phase regarding
Specific check and Analysis of vehicles / variant
Vehicle / Variant Specific Coding
Diagnostic Codes (MIL & DTC Errors)
Updation and Verification of Master Data set
Production Ramp-Up Support
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Sophistication and increasing trend of Calibration
Calibration needs for Alternative Fuels
System integration process for reliable calibration
Managing complexity of system integration & monitoring
Medium type CNG / LPG Calibration Project
Additional Calibration requirements
AVL Advantages
OverviewOverview
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Calibration:Calibration:
110 + Engineers (Including 22 at AVL affiliates110 + Engineers (Including 22 at AVL affiliates e.g.e.g.
ITC in IndiaITC in India, STC in China, STC in China))
Calibration Methodology:Calibration Methodology:
14 Engineers (Including 2 at AVL affiliates)14 Engineers (Including 2 at AVL affiliates)
TheThe LocationalLocational AdvantageAdvantage -- ITCITC
Staff undergone long term training at AVL headquartersStaff undergone long term training at AVL headquarters
Near by Real hNear by Real hotot and cand cold weatherold weather conditions etc..conditions etc..
High altitudeHigh altitude calibration under real conditionscalibration under real conditions
Tailor made toughest city driving cycle can beTailor made toughest city driving cycle can be mademade
AVL Graz & Affiliates are committed to strategic partnershipAVL Graz & Affiliates are committed to strategic partnership
AVL Global Network for Calibration
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AVL Calibration Strengths and Profile
Highly motivated team working with state-of-the-art and future technologies, using latest
development tools and methodologies
High experience through a significant number of
SOP projects
Own calibration process and procedures with
possibility to adopt customer specificprocedures
Customers located world-wide, contact with
various cultures
Experience with all established ECU suppliers
Application Centre HQ Graz
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Application Centre-HQ Graz
Thank YouThank You for Yourfor Your
kind Attentionkind Attention !!!!
Contact ITC Calibration TeamContact ITC Calibration Team
H.S.SOHIH.S.SOHI
phone: +91/124/4090300phone: +91/124/4090300harjapharjap..sohisohi@avl.com@avl.com
AVL-ITC, Gurgaon
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