Hybrid Battery Pack

The hybrid battery pack is a liquid cooled, "T" shaped lithium-ion energy storage system located beneath the vehicle. The 360 V direct current battery is formed from 288 cells which are grouped together to form distinct blocks, referred to as sections. The battery is connected to the propulsion circuit or charging circuit using unique pairs of contactors. Both circuits cannot be "live" at the same time. In general terms, the main contactors will close when the ignition switch is in the "on" position. Charging events cannot be initiated when the main contactors are closed. The high voltage battery is also connected to two distinct low voltage "high voltage interlock circuits", one for propulsion, and one for charging. As with the contactors, the two HVIL circuits cannot be energized at the same time. The high voltage DC output from hybrid/drive motor battery charger is delivered to the high voltage battery through an HVIL protected connector at the front of the battery bulkhead/battery disconnect unit (BBDU). The charger fuse is also serviceable through an HVIL protected access cover on the BBDU.