摘要
针对直流电机脉宽调制控制系统的工作原理,分析了受限单极和双极脉宽调制控制模式应用于电动助力转向系统电机驱动时的优缺点,提出了一种"半双极"控制模式及该模式下占空比的修正方法。分析表明,该模式更适合于电动助力转向系统的电机驱动,试验验证了理论分析的正确性和半双极模式在电动助力转向系统中的实用性。
Based on the working principle of pulse width modulation （PWM） control system for DC motor, the strong and weak points of two conventional PWM control modes （limited single polar mode and bipolar mode）, when used in electric power steering （EPS） system are analyzed, and a new PWM control, so called quasi-bipolar control mode is proposed with the correction method of its duty ratio given. Analysis indicates that the new control mode is more suitable for EPS system, which is verified by tests.
出处
《汽车工程》
EI
CSCD
北大核心
2007年第9期791-795,共5页
Automotive Engineering
