Title
Implementation of an optimal control energy management strategy in a hybrid truck
Author
van Mullem, D.
van Keulen, T.
Kessels, J.T.B.A.
de Jager, B.
Steinbuch, M.
TNO Industrie en Techniek
Publication year
2010
Abstract
Energy Management Strategies for hybrid powertrains control the power split, between the engine and electric motor, of a hybrid vehicle, with fuel consumption or emission minimization as objective. Optimal control theory can be applied to rewrite the optimization problem to an optimization independent of time. Estimation of the Lagrange parameter, e.g., by feedback on the battery State-Of-Charge (SOC), can be used to arrive at a real-time implementable strategy. Nevertheless, it is still required to solve a nonconvex optimization problem with limited onboard computational power. This paper suggests to solve this optimization problem, offline, for different values of the Lagrange parameter, crankshaft rotational speed, and torque request. The resulting strategy is evaluated with simulations of a hybrid distribution truck on two different velocity trajectories. The influence of several control parameters is investigated also. © 2010 IFAC.
Subject
Fluid Mechanics Chemistry & Energetics
PT - Power Trains
TS - Technical Sciences
Safe and Clean Mobility
Traffic
Mobility
Drive train
Energy Management
Hybrid configuration
Computational power
Control parameters
Energy management strategies
Hybrid trucks
Hybrid vehicles
Lagrange
Nonconvex optimization problem
Optimal control theory
Optimization problems
Power splits
Rotational speed
State-of-charge
Velocity trajectories
Crankshafts
Energy management
Lagrange multipliers
State feedback
Trucks
To reference this document use:
http://resolver.tudelft.nl/uuid:e8fb2335-9ec8-4b88-8077-6d0a1f779616
TNO identifier
436053
ISBN
9783902661722
ISSN
1474-6670
Source
6th IFAC Symposium Advances in Automotive Control, AAC 2010, 12-14 July 2010, Munich, Germany, 61-66
Document type
conference paper