Power Hardware-In-the-Loop test of low-voltage battery for a plug-in hybrid electric vehicle

A methodology developed for a quicker validation of various sub-systems is applied in this paper. It is based on two steps, i.e. the simulation validation and the power Hardware-in-the-Loop (HiL) testing. A new plug-in hybrid electric vehicle with low-voltage battery has been validated on a demo car. A new battery with higher power density is proposed to minimize the energy losses. Before its integration in car, simulation and hardware-in-the-loop tests are achieved. For the HiL part, a real-time simulation of the powertrain is coupled to the battery to test various driving conditions. A dedicated emulation interface is developed. The tests in this paper demonstrate the ability of the battery to operate in a safe condition for the vehicle using a WLTC driving cycle.