Riassunto analitico
This document is the report of the activities performed in collaboration with the Total Vehicle Integration Department of Maserati s.p.a. in Modena.
The focuses of the work are both the validation of the BEV prototype powertrain functionalities and the testing activities related to the powertrain thermal management system.
Before starting the powertrain functionalities checks, a plan for the prototype safety deliberation has been identified, in order to highlight the safety procedure that has to be carried out for deliberating the High Voltage prototype powertrain. All the procedures for performing the powertrain functional checks are discussed and the results of the testing activities are analysed to confirm the prototype functionalities validation.
Thermal management system is crucial for a BEV operability and three different testing activities, carried out on a proper instrumented BEV prototype, are reported in this thesis work. For first, the High Voltage battery coolant flow has been characterized, in order to find the relation that links the pressure drop with the volumetric flow. Moreover, a preliminary thermal system performance validation has been carried out, analyzing the cooling performances of the cooling system, running the prototype with particular boundary conditions. Finally, a test session devoted to the determination of the optimal refrigerant charge for cabin and battery cooling has been conducted. A test methodology has been performed and analysed in this thesis work.
All the test results are compared with the expected ones, allowing to observe if the system operations are coherent with the target imposed.
|
