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发明授权
CN103683901B 用于减小环保车辆中噪声的逆变器控制系统和方法 有权

用于减小环保车辆中噪声的逆变器控制系统和方法
摘要：
本发明公开了一种控制逆变器以减少环保车辆中噪声的系统和方法。在该方法中，实时监控当前电机转矩和当前电机转速中的至少一个。确定当前电机转矩和当前电机转速中的至少一个是否与设定在当前开关频率上的噪声发生范围对应。在当前电机转矩和当前电机转速中的至少一个与噪声发生范围对应时，计算与当前电机转矩和当前电机转速中的至少一个对应的变更的开关频率值。使用变更的开关频率值生成PWM信号以控制逆变器。
摘要（英）：

Disclosed is a system and method of controlling an inverter to reduce noise in an eco-friendly vehicle. In the method, at least one of a current motor torque and a current motor speed is monitored in real-time. It is determined whether or not the at least one of the current motor torque and the current motor speed corresponds to a noise occurrence range set to a current switching frequency. A changed switching frequency value corresponding to the at least one of the current motor torque and the current motor speed is calculated when the at least one of the current motor torque and the current motor speed corresponds to the noise occurrence range. A PWM signal is generated using the changed switching frequency value to control an inverter.

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