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Diesel EngineDevelopment

North America

USA

South America

Brazil

Europe

Germany

France

United Kingdom

Italy

Sweden

Russia

Poland

Spain

Asia

China

India

Japan

South Korea

Taiwan

Thailand

Turkey

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Safety Factor – Lower water jacket@ constant mean stress

1.19

1.25

1.501.75

2.0010.00

SF_A

5

TOPexpert

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Engine mechanics

and NVH

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10

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Full size engineDemonstrator Vehicle

Optical engine-Pmax 150 bar-IMEPmax 10 bar

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1. Cycle Definition

2. Cycle ReductionKey points: “Modes”Load spectrum by chassis dyno tests or simulation

3. DoE based modelingFor each mode: DoE processBut: No calibration optimization

4. Global Map OptimizationDirect optimization of cycle emissionsMap smoothness optimization

5. ValidationEngine test bench Chassis dyno testing

Time0 100 200 300 400 500 600 700 800 900 1000 1100 1200

Time0 100 200 300 400 500 600 700 800 900 1000 1100 1200700 800 900 1000 1100 1200

Cumulated emissions

New! Direct optimization of complete maps

New! Integration of EAS

New! Simultaneous optimization for multiple cycles

New! Definition of global modes for efficient variant

calibrationNew! Global models

ModesPointsModesPoints

Key features & benefitsSimplified longitudinal vehicle and drive train model

Calculation of engine speed and load from the vehicle speed & known gear change profile

Easy parameterization

Saving and loading of vehicle model parameterization

Denormalization of Heavy-Duty cycles based on full load and drag torque incl. NTE area

Filtering of overrun and idle conditions

Bozys + Cycle Simulation

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Key features & benefitsOptimal reduction of load spectrum to replacement modes by k-means clustering algorithmFree configuration of speed-load leverageIntroduction of fixed user-defined modes in reduction processMerging of different local mode sets and optimized distribution of global modesExtraction of convex hullsRedistribution of dwell times for individual variants using triangulation

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1. Identification TestsStandardized transient test sequencesTool-aided test execution

3. Calibration optimizationAutomatic determination of controller parametersConsideration of input saturationsIndividual shaping of loop response

4. ValidationIn-vehicle validation of closed-loop controller performance

2. Plant identificationAutomated data evaluation (step-detection, etc.)Automated determination of transfer behavior

Optimization of single variant based single set of base data– 1 Calibration / variant

Optimization for multiple variants with 1 calibration– 1 Calibration for all variants

Analysis of different trade-offs e.g. – EAS cost vs. F/E– Shift strategy vs. F/E– Variant specific calibration vs.

single calibration for all variants– …

Powerful tool to calibrate & estimate impact of H/W changes

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1818

SCRDOC / CDPF

AdBlueTank

NO2/NOx-ratio

Dosed AdBlue

Ureaconcentration

DOCageing

NOx-concentration

DCU

Injectorerror SCR

ageing

Enginedetoriation

AdBluedilution

Temp

T sens.error

NOx sen-.sor error

NOx emissionmodel

Ureadepoits

NOx-sensor error

NOx-concentration

1818 191919

O2 (Ref.)

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2020

for Professionals

for Project Mgrs.

Basic

Introduction

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Portfolio analysis tools with various reportsDiagrams

KPIs

Project Reporting (Ampelbogen)

Monthly project reporting, includingKPIs (Project Controlling)Evaluation of – Customer satisfaction, technical status,

schedule performance, Risks & opportunities

Portfolio Management

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