The LONGRUN simulation platform is a tool for the calculation of energy consumption and CO2 emissions of vehicles using conventional, electric or hybrid powertrains. It models the conventional and electrified components of a heavy-duty vehicle and simulates a virtual drive on a route. The goal is to provide a standardized way of calculating the energy consumption (fuel consumption) and corresponding CO2 emissions.

In the LONGRUN simulation platform, all powertrain technologies that are not covered by the current VECTO version will be covered, offering to the OEM´s the possibility to integrate customized new developed controls and components.
The following new hybrid powertrain architectures will be integrated
• The Parallel-Hybrid P2 architecture implemented by Irizar and Volvo. This configuration uses a mechanical clutch to couple and decouple the combustion engine from the electric motor. The torque to be delivered by each power source is calculated by the HCU.
• Ford Otosan will implement a Parallel-Hybrid P4 architecture. In this configuration the eAxle and the combustion engine are separately connected to the transmission and the HCU is in charge of calculating and requesting the corresponding torque commands.
• The Series Hybrid configuration implemented by VDL. In this configuration the combustion engine is only used to drive the electric generator that charges the battery used by the eMotor. There is no mechanical connection between the engine and the wheels, i.e., the vehicle is only moved by the eMotor.
• ICE-based conventional powertrain architecture, enabling the first validation steps of the LONGRUN platform versus the official VECTO release, in order to achieve the same behaviour of the different building blocks (internal combustion engine, gearbox, driver model, auxiliaries,…) and CO2 and fuel consumption deviations below 5% under same vehicle configurations and VECTO driving cycles.

Besides that, the connected strategies (i.e. eco-driving, eco-routing and energy consumption estimation) developed in WP2, led by IFPEN, have been integrated in the developed platform, according to the agreed interfaces and vehicle parameters.
The LONGRUN platform building blocks are developed and/or compatible with Matlab Simulink® 2020b and the hardware selected to run the platform and the simulations is a Speedgoat® Baseline M real-time target machine (supporting also real time Software in the Loop simulations), but the platform can be executed on any computer running the aforementioned Simulink version.

During 2023, LONGRUN partners – under leadership of TU Graz – will prepare for the transfer of LONGRUN methods to VECTO, especially the transfer of the software architecture for VECTO, and the Simulink platform integration.

And last but not least, the vehicles test results of the LONGRUN OEM test campaign (at IDIADA and JRC, in 2023) will validate the development simulation platform.

For further information, please contact TECNALIA, Mr Pablo Prieto (pablo.prieto[at]tecnalia.com) or download here the presentation given during the advisory board meeting on 21 Nov.2022: LONGRUN AdvisoryBoard_Meeting_Nov22_simulation platform_TECNA