High dynamic HIL model for complete software testing solution of Hev/Ev

The paper emphasizes on development of a high dynamic HIL (Hardware In Loop) module setup for performing the complete software module test for hybrid components for any typical hybrid electric/electric vehicle. The concept elucidates road to lab ideology from real time drive patterns to testing the same for use and mis-use cases at HIL environment. A unique methodology employing Monte-carlo optimization algorithm is used to convert real world road load datas for various terrain topology to a representative drive cycle with duration less than 3600 s/cycle called real-time drive cycle (RTDC). RTDC is derived with OEM specified drive log datas. RTDC would be given as input to a high dynamic HEV/EV vehicle module together with driver inputs. Based on energy distribution, load cycle for electric machine, inverter, high voltage battery etc. are derived. The derived load cycle for hybrid components are conditioned for various thermal, environmental loads and ECU states to generate a load cycle to performing multiple component level test cases for example electric machine load cycle (speed and torque versus time). Each load cycle generated will be specific for O.E.M torque structure under restricted functionality conditions. The load cycle serves as an input to the lab test environment called Lab-drives, which is a HIL system.