US 11,990,853 B2
Motor drive apparatus, method for controlling the same, vehicle, and readable storage medium
Yubo Lian, Shenzhen (CN); Heping Ling, Shenzhen (CN); Hua Pan, Shenzhen (CN); Feiyue Xie, Shenzhen (CN); and Lijun Zhang, Shenzhen (CN)
Assigned to BYD COMPANY LIMITED, Shenzhen (CN)
Appl. No. 17/416,853
Filed by BYD COMPANY LIMITED, Guangdong (CN)
PCT Filed Dec. 17, 2019, PCT No. PCT/CN2019/125979
§ 371(c)(1), (2) Date Jun. 21, 2021,
PCT Pub. No. WO2020/125626, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 201811574157.X (CN), filed on Dec. 21, 2018.
Prior Publication US 2022/0085746 A1, Mar. 17, 2022
Int. Cl. H02P 27/08 (2006.01); H02J 7/00 (2006.01); H02P 29/62 (2016.01)
CPC H02P 27/085 (2013.01) [H02J 7/0063 (2013.01); H02P 29/62 (2016.02); H02J 2207/20 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A motor drive apparatus, comprising: a three-phase inverter, a three-phase motor, and a buck side capacitor connected in sequence, wherein the buck side capacitor is connected to a positive electrode and a negative electrode of a power supply module, a first terminal of the three-phase inverter is connected to a positive electrode of a power battery, a second terminal of the three-phase inverter is connected to a negative electrode of the power battery, a first terminal of the buck side capacitor is connected to a connection point of three phase coils of the three-phase motor, a second terminal of the buck side capacitor is connected to the second terminal of the three-phase inverter, and the three phase coils of the three-phase motor are respectively connected to midpoints of three phase legs of the three-phase inverter, wherein the motor drive apparatus is configured to simultaneously control a process of charging the power battery by the power supply module, a torque of the three-phase motor at a zero output, and the three-phase inverter, and the three-phase motor to heat a heat exchange medium flowing through at least one of the three-phase inverter or the three-phase motor.