Emergency override of battery discharge protection

摘要

An apparatus, system and method for overriding battery discharge protection in a mobile communication device in the presence of an emergency communication. The method of overriding battery discharge protection in a mobile communication device comprises determining a measured battery voltage; determining an excess battery discharge condition, wherein further battery discharge will result in an impaired ability to recharge a battery; detecting an emergency communication state; disabling battery discharge protection in response to the emergency communication state; and continuing discharge of the battery.

主权项

1. A method of overriding battery discharge protection in a mobile communication device comprising:
determining a measured battery voltage; determining a measured battery temperature; determining an excess battery discharge condition based on a low measured battery voltage, wherein the excess battery discharge condition determined based on the low measured battery voltage indicates further battery discharge will result in an impaired ability to recharge a battery, and wherein said determining the excess battery discharge condition comprises comparing the measured battery voltage to a minimum threshold voltage, the minimum threshold voltage being calibrated by the measured battery temperature; detecting an emergency communication state based upon a command from the mobile communication device indicating emergency communication signaling transmitted to battery interface circuitry; disabling battery discharge protection in response to the emergency communication state and the excess battery discharge condition; and continuing discharge of the battery.