US Patent Application 18450375. BATTERY HEATING SYSTEM AND METHOD, POWER SUPPLY SYSTEM, AND ELECTRICAL APPARATUS simplified abstract

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BATTERY HEATING SYSTEM AND METHOD, POWER SUPPLY SYSTEM, AND ELECTRICAL APPARATUS

Organization Name

Contemporary Amperex Technology Co., Limited

Inventor(s)

Xinwei Chen of Ningde (CN)

Yu Yan of Ningde (CN)

Zhimin Dan of Ningde (CN)

Zhanliang Li of Ningde (CN)

Yizhen Hou of Ningde (CN)

Wei Zhang of Ningde (CN)

BATTERY HEATING SYSTEM AND METHOD, POWER SUPPLY SYSTEM, AND ELECTRICAL APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18450375 titled 'BATTERY HEATING SYSTEM AND METHOD, POWER SUPPLY SYSTEM, AND ELECTRICAL APPARATUS

Simplified Explanation

The patent application describes a battery heating system that includes a voltage conversion unit and a control unit.

  • The voltage conversion unit is connected to a power source and a battery to be heated.
  • The voltage conversion unit can receive either a first voltage input from the power source or a second voltage input from the battery.
  • The control unit determines the charging and discharging frequency of the voltage conversion unit.
  • Based on the charging and discharging frequency, the control unit calculates the charge transfer impedance of the battery.
  • The control unit then calculates a safe amplitude current for the battery based on the charge transfer impedance.
  • The control unit sends a control signal to the voltage conversion unit based on the charging and discharging frequency and the safe amplitude current.
  • The voltage conversion unit performs boost or buck processing of the first voltage or the second voltage based on the control signal.


Original Abstract Submitted

A battery heating system includes a voltage conversion unit configured to be electrically connected to a power source and to a battery to be heated, and a control unit. The voltage conversion unit receives a first voltage input by the power source or a second voltage input by the battery to be heated. The control unit acquires a charging and discharging frequency of the voltage conversion unit, determines a charge transfer impedance of the battery to be heated according to the charging and discharging frequency, calculates a safe amplitude current of the battery to be heated according to the charge transfer impedance, and sends a control signal to the voltage conversion unit according to the charging and discharging frequency and the safe amplitude current to cause the voltage conversion unit to perform boost or buck processing of the first voltage or the second voltage according to the control signal.

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