Possibilities of the simulation models

In combination with ETAS’s established LABCAR HiL systems, developers receive a high-performance tool for testing fuel cell ECUs.

ETAS’s LABCAR-MODEL-FC and LABCAR-MODEL-FCCAL models allow users to simulate fundamental system behavior all the way through to detailed water management of the stack. The fuel cell models contain a Simulink® component library and various cell models for simulating the stack and peripherals.

Simulation model of fuel cell system for HiL tests (LABCAR-MODEL-FC) comprises a one-dimensional simulation of the PEM-FC (polymer electrolyte membrane fuel cell) stack as well as a detailed and modular description of the reactant and coolant supply systems. Accordingly, it provides all the interfaces required to operate a fuel cell ECU.

Simulation model of fuel cell system for HiL-based calibration (LABCAR-MODEL-FCCAL) adds 2D space-resolved stack simulation to LABCAR-MODEL-FC and gives a detailed insight into cell behavior. As well as facilitating the basic calibration of ECUs for operation in closed control circuits, it also allows users to test functions for optimizing stack operation and to minimize cell degradation at early development stages.

Thanks to their PC-based simulation target LABCAR-RTPC and their openness, LABCAR-MODEL-FC and LABCAR-MODEL-FCCAL can be customized and adapted to changing requirements. Their open implementation in Simulink® gives developers the option of integrating component models from ETAS or from other providers.

In addition to the simulation models, ETAS also offers supporting engineering services and consulting for all development needs.

Simulation models of fuel cell systems for HiL tests

Typical architecture of a fuel cell system – basis for simulation using ETAS LABCAR-MODEL-FC

LABCAR-MODEL-FC (simulation model of fuel cell system for HiL tests)
ETAS’s “LABCAR-MODEL-FC” (fuel cell) describes a complete fuel cell system including the stack, peripherals, and soft ECU. It contains a 1D PEM-FC stack that creates detailed simulations of the water flow, temperature influence, and reaction kinetics. The soft ECU also enables direct closed-loop commissioning at the workstation.

LABCAR-MODEL-FC enables users to realistically simulate a fuel cell system for the purpose of testing an ECU in the HiL system. Its modular model architecture allows customer-specific modeling of hydrogen, oxygen, and coolant systems.

Model add-ons

LABCAR-MODEL-FCCAL (simulation model of fuel cell systems for HiL-based calibration)
ETAS’s LABCAR-MODEL-FCCAL (fuel cell calibration) is a 2D PEM-FC (polymer electrolyte membrane fuel cell) stack model for the detailed simulation of electricity, water, and pressure distribution. Thanks to its modular design and the parameterization tools provided, the model can be integrated seamlessly into the existing LABCAR-MODEL-FC.

Both variants can be integrated into the LABCAR-MODEL-VVTB complete vehicle simulation (simulation model of a virtual vehicle test bench for HiL tests).