Title:
ハイブリッド電気自動車
Document Type and Number:
Japanese Patent JP4432999
Kind Code:
B2
Abstract:
A hybrid electric vehicle (10) includes an engine (22) and motors (MG1, MG2) as drive sources. A hybrid ECU (70) outputs a control signal to an engine ECU (24) and a motor ECU (40) so that an engine (22) performs an intermittent operation by alternately repeating an operation period and halt period and a motor (MG1 or MG2) generates electricity by the engine (22) in the operation period. When the vehicle velocity is smaller than a predetermined threshold value, the motor ECU (40) sets a carrier frequency of an inverter (41 or 42) in the halt period lower than a carrier frequency of the inverter (41 or 42) in the operation period.
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Inventors:
Yoshinaka Hironaka
Application Number:
JP2007154828A
Publication Date:
March 17, 2010
Filing Date:
June 12, 2007
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
B60W10/08; B60K6/26; B60K6/445; B60L9/18; B60L50/16; B60W20/00; H02P27/08
Domestic Patent References:
| JP2006094626A | ||||
| JP2006197717A | ||||
| JP2007143303A | ||||
| JP2007062638A | ||||
| JP2006335216A | ||||
| JP2004048844A | ||||
| JP9046819A |
Attorney, Agent or Firm:
Kenji Yoshida
Jun Ishida
Jun Ishida