Apparatus and method for draining and filling a battery cooling system

摘要

An apparatus and method for filling and draining coolant from a battery cooling system (10). A coolant delivery system (94) is fluidly connected to the battery cooling system (10) for providing new coolant to the battery cooling system (10) when filling and for purging coolant from the battery cooling system (10) when draining. A pressurization system (96) is fluidly connected to the battery cooling system 10) for pressurizing the battery cooling system (10) after providing coolant when filling and for purging coolant when draining. A vacuum system (98) is fluidly connected to the coolant delivery system for creating a vacuum after draining to evacuate the battery cooling system (10) prior to filling. And, a controller (189) is electrically connected to the battery cooling system (10) to cycle a condenser fan (32) and coolant pump (26) coupled to the battery cooling system on and off according to a predetermined timing sequence.