Advanced Hardware In Loop concept for validation of Hybrid/Electric Vehicles

The paper describes the methodology and key concepts which once employed in a Hardware In Loop (HIL) environment can result in precise testing of the Inverter ECUs used in Hybrid Electric Vehicles. The concepts described in this paper aims at bringing the simulated environment generated by HIL systems as close as possible to the real world, thereby leading to in depth testing of the components in Hev/EV in simulated environment and early detection of crucial bugs in the system. Some concepts of failure injection in to the components of Hev/Ev in a simulated environment is also described. A unique methodology is also described in this paper, which can be used to compress lengthy real world drive cycles to a short effective drive cycle , which can be then used for accelerated testing of Hybrid/Electric vehicle systems in lab environment like HIL or on Chassis Dynamometer. An accurate modelling of the real world components of Hev/Ev like electric motor, power electronics , battery etc will lead to a possibility to test and validate close to 80% of the components even before piloting it in the real car and thereby leading to huge savings in cost, time and effort.