IPU Module Fan
The battery module, the MPI module, and the DC-DC converter generate heat during charge/discharge. The IPU is equipped with a fan to cool these parts, to assure proper battery performance, and to protect the system. The fan has a control circuit and a rotation sensor that are controlled by the MCM. When the temperature of the battery module, the MPI module, or the DC-DC converter exceeds a specified value, the MCM operates the IPU module fan. The cooling air is drawn into the battery module from the left side of the rear seat, then it is exhausted into the cargo area through the MPI module heat sink and the DC-DC converter heat sink.