Battery heating system, control method and device thereof and electronic equipment
AssigneeContemporary Amperex Technology (Hong Kong) Limited
InventorsXiaojian Huang, Zhimin Dan, Chenghua Fu, Wei Chen
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Abstract
A control method for a battery heating system. The battery heating system includes an inverter and a motor winding, and the inverter is connected to the motor winding and a battery. The control method includes acquiring a target voltage vector required for motor operation; and controlling, according to the target voltage vector, the motor winding to output a pulse current to the battery through the inverter.
Claims9
A control method of a battery heating system, wherein the battery heating system comprises an inverter and a motor winding, and the inverter is connected to the motor winding and a battery, the method comprising:
- acquiring a target voltage vector required for motor operation;
- and
- controlling, according to the target voltage vector, the motor winding to output a pulse current to the battery through the inverter, comprising:
- determining, according to the target voltage vector, a first action duration of a pulse vector in a preset period, comprising:
- determining, according to preset space vector pulse width modulation information, a target sector of the target voltage vector in the preset space vector pulse width modulation information;
- determining a second action duration of an effective voltage vector in the preset period according to an amplitude of the target voltage vector and positional relationship information between the target voltage vector and the target sector;
- and
- determining the first action duration of the pulse vector according to a difference between the preset period and the second action duration;
- and
- controlling, in the first action duration, the motor winding to output the pulse current to the battery through the inverter.
A control device of a battery heating system, wherein the battery heating system comprises an inverter and a motor winding, and the inverter is connected to the motor winding and a battery, the device comprising:
- an acquisition module, configured to acquire a target voltage vector required for motor operation;
- and
- a control module, configured to control the motor winding to output a pulse current to the battery through the inverter according to the target voltage vector, comprising:
- determining, according to the target voltage vector, a first action duration of a pulse vector in a preset period, comprising:
- determining, according to preset space vector pulse width modulation information, a target sector of the target voltage vector in the preset space vector pulse width modulation information;
- determining a second action duration of an effective voltage vector in the preset period according to an amplitude of the target voltage vector and positional relationship information between the target voltage vector and the target sector;
- and
- determining the first action duration of the pulse vector according to a difference between the preset period and the second action duration;
- and
- controlling, in the first action duration, the motor winding to output the pulse current to the battery through the inverter.
Dependencies are inferred from the claim text.