HYBRID VEHICLE - TOYOTA MOTOR CO LTD

Title:

HYBRID VEHICLE

Document Type and Number:

WIPO Patent Application WO/2010/001692

Kind Code:

A1

Abstract:

Disclosed is a hybrid vehicle wherein such a situation that the residual capacity of a battery drops greatly below the lower limit of a reasonable range is avoided while fuel efficiency is enhanced. The hybrid vehicle (10), comprising an engine (12), a generator (MG1), a battery (50) and an electric motor (MG2) for driving, is further provided with a converter (48) for supplying the voltage of the battery (50) that has been boosted to the electric motor (MG2), an eco-switch (72) for selecting a first mode or a second mode in association with the boosting operation of the converter (48), and a hybrid ECU (66) for changing the upper limit of the voltage boosted by the converter (48) from a first upper limit in the first mode to a second upper limit lower than the first upper limit when the second mode is selected by the eco-switch (72), and changing the upper limit of the voltage boosted by the converter (48) from the second upper limit to the first upper limit when the residual capacity of the battery (50) drops below a threshold.

Inventors:

KOJIMA YASUSHI (JP)
TAKAGI KENSUKE (JP)
KIMATA MASATOSHI (JP)

Application Number:

PCT/JP2009/060464

Publication Date:

January 07, 2010

Filing Date:

June 08, 2009

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
KOJIMA YASUSHI (JP)
TAKAGI KENSUKE (JP)
KIMATA MASATOSHI (JP)

International Classes:

B60W10/08; B60K6/445; B60L3/00; B60L50/16; B60W10/06; B60W10/26; B60W20/00; F02D29/02

Foreign References:

JP2007306658A	2007-11-22
JP2007151247A	2007-06-14
JP2007159214A	2007-06-21
JP2007055436A	2007-03-08
JP2008136308A	2008-06-12
JP2007159214A	2007-06-21

Other References: