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AssigneeHuawei Digital Power Technologies Co., Ltd.
InventorsYankun Xu, Sen Cao, Xueliang Zhang
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This application provides a method for pulse-heating a power battery of an electric vehicle, and an electric vehicle. The electric vehicle includes a plurality of motors and a plurality of three-phase bridge arms. Bridge arm midpoints of each three-phase bridge arm are configured to connect to a three-phase winding of one motor. Each three-phase bridge arm is configured to connect to the power battery through a direct current bus. The control method includes: controlling each three-phase bridge arm to be configured to generate a pulse current on the direct current bus; and adjusting a switching frequency of a switching transistor of at least one of the plurality of three-phase bridge arms to reduce a phase difference between pulse currents generated by a plurality of inverter circuits.
A method for pulse-heating a power battery of an electric vehicle, wherein the electric vehicle comprises a plurality of motors and a plurality of three-phase bridge arms, three bridge arm midpoints of each three-phase bridge arm are configured to connect to a three-phase winding of one motor, each three-phase bridge arm is configured to connect to the power battery through a direct current bus, and the control method comprises:
An electric vehicle, wherein the electric vehicle comprises a control apparatus, a plurality of motors, and a plurality of three-phase bridge arms in a one-to-one correspondence with the plurality of motors, each three-phase bridge arm comprises three phase bridge arms, bridge arm midpoints of each three-phase bridge arm are configured to connect to a three-phase winding of one motor, each three-phase bridge arm is configured to connect to a power battery through a direct current bus, and the control apparatus is configured to:
Dependencies are inferred from the claim text.