Crowell & Moring LLP
Inverter device and electric vehicle
Provided are an inverter device deterring PWM voltage error even if high inverter output frequencies are used for overmodulation driving and an electric vehicle equipped with the inverter device. In an angular section where the output voltage from an inverter device is linearly approximated with the zero cross point as the center thereof, a PWM generator in the inverter device changes either the time interval between the centers of PWM ON pulses or the time interval between the centers of PWM OFF pulses depending on the inverter operation state. An electric vehicle is equipped with the inverter device, which drives a motor.
Hitachi Automotive Systems, Ltd.
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Y10S B60L H02M Y02T B60L B60L B60L Y02T B62D B60L B60L B60L H02M B60L Y02T H02P Y02T B60L B60L
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Toshiyuki Kohei Hiroyuki Kimihisa
Ajima Myoen Yamada Furukawa