Torque Allocation of Hybrid Electric Trucks for Drivability and Transient Emissions Reduction

This paper aims at investigating powertrain behaviour, especially in transient dynamic responses, using a nonlinear truck vehicle dynamic model with a parallel hybrid configuration. A power split control was designed to achieve the desired drivability performance, with a focus on NOx emissions. The...

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Bibliographic Details
Published in:Applied sciences 2023-03, Vol.13 (6), p.3704
Main Authors: Dimauro, Luca, Tota, Antonio, Galvagno, Enrico, Velardocchia, Mauro
Format: Article
Language:English
Subjects:
Air pollution
Automotive emissions
Comparative analysis
Configurations
Control algorithms
Design
Diesel engines
Diesel motor
drivability and emission trade-off
Dynamic models
Electric motors
Electric vehicles
Emissions
Emissions control
Energy consumption
Energy management
Environmental aspects
Hybrid vehicles
Internal combustion engine industry
Nitrogen oxide
Nitrogen oxides
NOx emissions
parallel hybrid truck vehicle model
phlegmatization
Pollutants
Powertrain
R&D
Research & development
Torque
torque allocation control logic
Trucks
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Summary:This paper aims at investigating powertrain behaviour, especially in transient dynamic responses, using a nonlinear truck vehicle dynamic model with a parallel hybrid configuration. A power split control was designed to achieve the desired drivability performance, with a focus on NOx emissions. The controller was characterized by high-level model-based logic used to elaborate the total powertrain torque required, and a low-level allocation strategy for splitting power between the engine and the electric motor. The final task was to enhance vehicle drivability based on driver requests, with the goal of reducing—in a hybrid configuration—transient diesel engine emissions when compared to a conventional pure thermal engine powertrain. Different parameters were investigated for the assessment of powertrain performance, in terms of external input disturbance rejection and NOx emissions reduction. The investigation of torque allocation performance was limited to the simulation of a Tip-in manoeuvre, which showed a satisfying trade-off between vehicle drivability and transient emissions.
ISSN:2076-3417
2076-3417
DOI:10.3390/app13063704