Nissan Motor Company Limited

Toshio Ouchi

Kenichi Mori

Yoshihiro Kondo

A boost converter control method in one aspect of the present invention is the control method of the boost converter that boosts a voltage input from a power supply and supplies a boosted voltage to a load-side. The control method of the boost converter is securing an output electric power required according to an operation point of a motor connected to the load-side, calculating a lower limit voltage value at which the output voltage of the boost converter does not oscillate, setting a target output voltage of the boost converter to a value equal to or higher than the lower limit voltage, and controlling the boost converter so as to output a voltage according to the target output voltage.

Boost converter control method and control apparatus

A control method for a motor system, the motor system having a battery; a boost converter configured to increase DC voltage supplied by the battery; an inverter connected to the boost converter and configured to execute a conversion between DC power and AC power; and a motor generator connected to the inverter. The control method comprising: a limiting power determination step of determining a limiting power in response to an operating point of the motor generator such that an oscillation of a terminal voltage of the boost converter at a side of the inverter is suppressed; and a controlling step of controlling the operating point of the motor generator such that a passing power of the boost converter does not exceed the limiting power.

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Kanagawa, Japan

Toshio Ouchi