Study of Battery Performance with Hardware in the Loop Simulation of High Power Working Vehicles

摘要

The growing diffusion of electric and hybrid vehicles is the consequence of the high level of pollutant emission that the world is experiencing. New stricter regulations are introduced almost every year to invert or at least moderate the growth rate of C02 and NOx emissions. Nowadays, it is well known that the electrification process is involving almost every field of ground vehicles. In the automotive field, companies are investing large amounts of money in order to electrify their vehicles with attention both to hybrid (mid-term) and full electric solutions. Hybrid architectures are by now a very well-known technology that can successfully increase vehicle efficiency, reducing pollutant emissions. At least in the automotive field, the trend is to move towards full electric architectures due to their higher simplicity compared to the actual adopted solutions. The electrification process is involving also other categories of ground vehicles like construction machineries, agricultural machineries, lifters and so on. In the working vehicles field manufacturer are constantly struggling in order to find solutions able to satisfy emissions regulations. Moving towards higher efficient architectures is thus mandatory for this kind of vehicles that often have to work continuously all along the day. This class of vehicles has some similarity with the automotive field but also shows problems that require special attention. The huge amount of power involved both for traction and hydraulic tools needs specific management approaches. Combining the electrical and mechanical system performance is essential to achieve the higher efficiency possible. To study these aspects, a specific knowledge on advanced testing techniques like Hardware In the Loop (HIL) simulations was developed in the past by the research group. In this work, the attention is focused on testing performance of a battery based Energy Storage System (ESS) using a HIL simulation.