| 摘要 |
The present invention relates to an inverter control method of an eco-friendly vehicle. The purpose of the present invention is to provide the inverter control method of the eco-friendly vehicle capable of obtaining an improved effect on the side of a switching loss, an electromagnetic wave performance, an NVH performance, and control stability in comparison to a traditional method which uses a fixed switching frequency and a sampling frequency in a total operating area. To achieve this purpose, the present invention provides the inverter control method of the eco-friendly vehicle which produces a PWM signal according to the switching frequency and the sampling frequency and controls the on/off operation of a switching element. A controller changes and sets the switching frequency according to a current speed of a motor and changes and sets the sampling frequency according to the switching frequency. The inverter control method of the eco-friendly vehicle controls the on/off operation of the switching element according to the switching frequency and the sampling frequency corresponding to the current speed of the motor. [Reference numerals] (1,2) Direct current voltage source; (13,14,) Reactor for resonance; (15,16) Condenser for resonance; (17) Insulating transformer; (3,4,) Smoothing condenser; (5~12) Semiconductor switch device; (AA) First bridge circuit; (BB) Second bridge circuit |
