Post on 24-Feb-2018
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7/24/2019 Virtual Multi Cylinder Engine Transient Test System
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Dynamic and Transient Engine Testing Applications,System requirements and modular structures
Presented by :
Hans Peter Dohmen
Gerald Fehl Schen Pegasus Gmbh
SAE Technical Paper no ! "#$"%#
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&' Dynamic and Transient Engine Testing Applications,System requirements and modular structures
()AD to (*G
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Purpose
(oad to (ig + characteristics o dri-erand -ehicle are simulated close toreality or engine installed in the teststand .ith the help o dynamometer,
enabling reduction o productde-elopment times
Dynamic Engine /alibration +
-eri0cation o comple1 E/2 algorithms.ith respect to -arious operatingconditions
Emission Testing
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System (equirement + 3odules and
*nteraces
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3odularity : Test stand should ha-emodular structure .ith standardi4ed
interaces to enable adaptation tone. testing
5 ma6or modules around thespecimen i'e' Engine are : Dynamometer :7 types
/ontroller :control dynamometer, (8Scompatible
3easuring system : or e1haust and uelconsumption
Automation system: runs the -arious
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9ehicle model to road loadsimulation(8S;
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8/15E1ample o test stand
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/alculation methodology The controller must be complemented by (8S
sot.are to enable transient testing
This is used to simulate all orces acting on the-ehicle and to reproduce them at the engineinterace ie
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9irtual 3ulti cylinder Engine
Transient Test System
Presented by>ohn >' 3os.a, Dere A' 3angun
P/(8, 2ni-ersity o ?isconsin
Austin (' 8eme, >ohn 8' 8ahti et al Enerpac, G3 Po.ertrain etc
SAE Technical Paper no + $@@"!$5!@&@
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$' 9irtual 3ulti cylinderEngine Transient Test
System Done at P/(8Po.ertrain /ontrol (esearch
8aboratory;, 2ni-' o ?isconsin
Approach + a transient system or singlecylinder system that replicates dynamics oa multi cylinder engine
Test system includes a dynamic model o
the entire multi!cylinder engine that runs inreal time
3odel computes instantaneous torque
tra6ectory and dyno applies it to engine
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Set up
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Subsytems
(otationalDynamics
Bo
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(eerences to note
2S Patent C@#%% + *nternal/ombustion Engine Simulation and
Testing
Transient 3ulti /ylinder *ntaeDynamics simulated on a singlecylinder engine