Circuit/System Description

Level 3 direct current (DC) fast charging requires a locking mechanism in the charge port receptacle/coupler assembly to prevent customer removal of the charger cable while current is flowing.

A manual release cable is provided for situations in which the coupler lock does not disengage automatically. Only operate the manual release cable when necessary and never when DC fast charging is active.

The battery charger coupler lock control circuit is contained within the battery energy control module and consists of a series of switching circuits in an H-Bridge configuration to drive 12 V DC in either direction on the battery charger coupler lock actuator circuit for the purpose of engaging/disengaging the lock. Coupler lock position is monitored by a 5 V, 2-wire sensor located in the Charge Receptacle assembly.