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Development of an Engine-in-the-loop Vehicle Simulation System in Engine Dynamometer Test Cell
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 20, 2009 by SAE International in United States
Annotation ability available
To meet the ever increasing requirements for engines and vehicles in the areas of performance, fuel economy, emission, and meanwhile reduce product development time, Hardware-in-the-loop (HIL) simulation is increasingly used in automotive control system development. Engine-in-the-loop (EIL) vehicle simulation, which is a specific form of HIL simulation, is an approach in which a physical engine (together with its control unit) is coupled to virtual vehicle and driver models through a high power, low inertia engine dynamometer in the engine test cell environment. EIL can be used to perform powertrain control development, as well as engine and vehicle performance evaluation. Because of its advantages in repeatability and flexibility etc., especially for transient operating mode study, EIL has become a powerful tool and will be more widely used in the near future.
Design and implementation of an EIL vehicle simulation system is described. Driver and vehicle simulation models are developed and executed in real time on a high-speed system controller. A highly responsive permanent magnet AC engine dynamometer and a vehicle acceleration pedal are controlled such that the dynamometer loads the connected engine as a real vehicle would and the simulated vehicle speed trace follows the targeted driving cycle. With this system, developers can perform transient engine control development before whole vehicle integration is available. Vehicle parameters, including driveline configurations can be easily modified and the effect on engine and vehicle performance can be studied. An application example of simulating a 10-15 mode emission test cycle is given. The result verifies the effective performance of the system in simulating vehicle dynamics and shows its great potential in engine and vehicle system development.
CitationJiang, S., Smith, M., Kitchen, J., and Ogawa, A., "Development of an Engine-in-the-loop Vehicle Simulation System in Engine Dynamometer Test Cell," SAE Technical Paper 2009-01-1039, 2009, https://doi.org/10.4271/2009-01-1039.
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