发明名称 |
Motor control apparatus, vehicle fan drive apparatus, and motor control method |
摘要 |
A motor control apparatus has a start control section. When the motor control apparatus receives a motor start command from a host control unit when a motor is in a stop state or a low-speed rotating state where a sensorless control cannot be applied, the control section starts the motor that rotates a vehicle fan by a forced commutation which supplies a pseudo sinusoidal drive signal caused by a complementary PWM control. Thereafter, the motor control apparatus switches over to a sensorless control using a rectangular wave drive signal at an energization angle of lower than 180°. |
申请公布号 |
US8159162(B2) |
申请公布日期 |
2012.04.17 |
申请号 |
US20080292353 |
申请日期 |
2008.11.18 |
申请人 |
KANAMORI ATSUSHI;DENSO CORPORATION |
发明人 |
KANAMORI ATSUSHI |
分类号 |
H02P1/50 |
主分类号 |
H02P1/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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