Charging and heating apparatus and method and apparatus for controlling same

A method for controlling a charging and heating apparatus, comprising:

• obtaining a state parameter of a battery read by a battery management system, wherein the state parameter comprises at least one of a real-time temperature or a state of X (SOX) parameter of the battery;
• outputting an alternating current to the battery in response to the state parameter being within a first preset range, such that the battery self-heats under driving of the alternating current;
• and
• outputting a preset current to the battery in response to the state parameter being within a second preset range, such that the battery is charged, comprising:
• uploading the SOX parameter, a real-time voltage, and the real-time temperature of the battery to a cloud, such that the cloud determines, based on the SOX parameter, the real-time voltage, the real-time temperature, and historical charge record information, whether the battery meets a charge/discharge condition;
• and
• in response to the battery meeting the charge/discharge condition, outputting the preset current to the battery to charge the battery.

A charging and heating apparatus, comprising:

• a power unit configured to be connected to a battery to be charged/discharged and perform voltage conversion on a received voltage and current and output a converted voltage to the battery;
• a unidirectional/bidirectional conversion unit connected to the power unit and configured to output a first alternating current or a preset current to the power unit;
• and
• a control unit connected to the unidirectional/bidirectional conversion unit and configured to:
• in response to the battery being in a heating mode, control the unidirectional/bidirectional conversion unit to output the alternating current to the power unit, such that the battery self-heats under excitation of the alternating current;
• and
• in response to the battery being in a charge/discharge mode, control the unidirectional/bidirectional conversion unit to output the preset current to the power unit, such that the battery is charged/discharged;
• wherein:
• the control unit is configured to be communicatively connected to a battery management system of the battery, to respond to a request from the battery management system for the heating mode or the charge/discharge mode;
• the battery management system sets a mode of the battery as the heating mode or the charge/discharge mode based on at least one of a real-time temperature or a state of X (SOX) parameter of the battery;
• and
• the control unit is configured to, in response to the real-time temperature of the battery being greater than or equal to a preset value and the SOX parameter of the battery meeting a preset condition, control the battery to enter the charge/discharge mode.