Title:
車両
Document Type and Number:
Japanese Patent JP4605274
Kind Code:
B2
Abstract:
A vehicle includes a motor for driving wheels WH, an inverter to drive the motor, and a control device to perform PWM control of the inverter. The control device performs synchronous PWM control in a case where an electric current supplied to the motor by the inverter or torque generated in the motor is larger than a threshold value; and performs the synchronous PWM control or non-synchronous PWM control in a case where the electric current or the torque is smaller than the threshold value and sets carrier frequency or a pulse number of the PWM control to be higher than the case where the electric current or the torque is larger than the threshold value. Thereby, it is possible to provide a vehicle of achieving reduction of noise, reduction of cost and improvement of fuel consumption in a balanced manner.
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Inventors:
Naoyoshi Takamatsu
Kenki Okamura
Kenki Okamura
Application Number:
JP2008218166A
Publication Date:
January 05, 2011
Filing Date:
August 27, 2008
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H02P27/08; B60L9/18; H02M7/48; H02P21/05; H02P21/22; H02P23/04
Domestic Patent References:
| JP2006000731A | ||||
| JP2002010668A | ||||
| JP2002153096A | ||||
| JP2007282298A | ||||
| JP63257497A |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yutaka Horii
Nobuo Arakawa
Toshio Morita
Yutaka Horii
Nobuo Arakawa