CURRENT MODULATION MODULE, PARAMETER DETERMINATION MODULE, BATTERY HEATING SYSTEM, AS WELL AS CONTROL METHOD AND CONTROL DEVICE THEREFOR

The embodiments of the present application provide a current modulation module, a parameter determination module, a battery heating system, as well as a control method and a control device thereof, and relate to the field of battery. The control method includes determining a state of charge, SOC, of the battery, modulating a first current flowing into windings of a motor into an alternating current when the SOC is greater than a first SOC threshold, so as to use heat generated by the alternating current in a first target module to heat the battery, and modulating a second current flowing into the windings of the motor into a direct current when the SOC is less than or equal to the first SOC threshold, so as to use heat generated by the direct current in a second target module to heat the battery. The solution according to the embodiments of the present application take both heating efficiency and energy consumption into account, and improve flexibility of the battery heating system.