System and method for ambient temperature and battery voltage compensation for operation of a telematics module through an ignition-off low-power mode

A device including a system for ambient temperature and battery voltage compensation for operation of a telematics module through an ignition-off low-power mode, the device comprising:

• the telematics module configured for continuously providing data communication and media connectivity to a user of the system and for operating in the ignition-off low-power mode through a telematics remaining reduced power operating period, wherein the telematics remaining reduced power operating period begins at an ignition-off event, and wherein the telematics remaining reduced power operating period is initially set to a nominal operating period;
• a battery system configured for providing electrical power to the telematics module;
• a battery voltage sensor configured for measuring a battery voltage of the battery system;
• an ambient temperature sensor configured for measuring an ambient temperature;
• a computerized ignition-off low-power controller, including programming to:
• periodically monitor the battery voltage;
• periodically monitor the ambient temperature;
• determine a relative energy consumption ratio based upon comparing the battery voltage to a nominal battery voltage and comparing the ambient temperature to a nominal ambient temperature;
• and
• selectively reduce a timespan of the telematics remaining reduced power operating period to a timespan relatively shorter than the nominal operating period based upon the relative energy consumption ratio in order to preserve a minimum battery state of charge.

A method for ambient temperature and battery voltage compensation for operation of a telematics module through an ignition-off low-power mode, the method comprising:

• operating the telematics module, wherein the telematics module is configured for continuously providing data communication and media connectivity to a user of the telematics module and for operating in the ignition-off low-power mode through a telematics remaining reduced power operating period, wherein the telematics remaining reduced power operating period begins at an ignition-off event, and wherein the telematics remaining reduced power operating period is initially set to a nominal operating period;
• operating a battery system configured for providing electrical power to the telematics module;
• within a computerized ignition-off low-power controller,
• periodically monitoring a battery voltage of the battery system;
• periodically monitoring an ambient temperature;
• determining a relative energy consumption ratio based upon comparing the battery voltage to a nominal battery voltage and comparing the ambient temperature to a nominal ambient temperature;
• and
• selectively reducing a timespan of the telematics remaining reduced power operating period to a timespan relatively shorter than the nominal operating period based upon the relative energy consumption ratio in order to preserve a minimum battery state of charge.