METHOD FOR CHARGING THE STARTER BATTERY OF A VEHICLE

摘要

A method for charging the starter battery of a motor vehicle at a voltage source includes charging the starter battery after a traction battery of the vehicle has been charged up to a defined value. The starter battery is charged if a charge state of the starter battery is established that is below a defined threshold value. If the charge state of the starter battery is of such a low level, the starter battery is charged until one or more defined termination conditions are fulfilled. The termination conditions may include the total charging period since the low charge state of the starter battery has been established exceeds a defined threshold value and/or the total time period charging the traction battery and the starter battery at the voltage source exceeds a defined threshold.

主权项

1. A method for controlling a vehicle having a starter battery, a traction battery, and an engine in communication with at least one controller while the vehicle is connected to a stationary power source, wherein the at least one controller performs the method comprising:
charging the traction battery; charging the starter battery to a second charge state after the traction battery charges to a first charge state; deactivating current from the power source after the traction and starter batteries charge to the first and second charge states, respectively; after expiration of a predetermined time period, periodically reactivating current from the power source to monitor the starter battery charge state; and resuming charging of the starter battery if the starter battery charge state is below a first threshold.