POWER SUPPLY APPARATUS OF VEHICLE

WIPO Patent Application WO/2015/104744

A1

A power supply apparatus of a vehicle includes: an engine (100) and a first MG (110); a battery (150), a converter (200) stepping up a voltage of the battery (150) and supplying the stepped-up voltage to an inverter (210, 220) of the vehicle; and a control device (500) controlling the converter (200) in a continuous voltage step-up mode in which the converter (200) is continuously operated and an intermittent voltage step-up mode in which the converter (200) is intermittently operated. The control device (500) estimates an SOC of the battery (150) based on battery current IB flowing into and out of the battery (150), and forces the battery (150) to be charged by the engine (100) and the first MG (110) when an estimate value of the SOC is lower than a predetermined lower limit LL. The control device (500) suppresses an operation of the converter (200) in the intermittent voltage step-up mode to a greater extent as the estimate value of the SOC is closer to the lower limit LL.

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KAMATANI HIDEKI (JP)
KUMAZAWA SUGURU (JP)
SATO RYOJI (JP)

PCT/JP2014/005842

July 16, 2015

November 20, 2014

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TOYOTA MOTOR CO LTD (JP)

B60L3/00; B60L11/18; B60L50/10

US20130311021A1	2013-11-21
US20120187887A1	2012-07-26
JP2012147538A	2012-08-02
US20120049774A1	2012-03-01

FUKAMI PATENT OFFICE, P.C. (2-7 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, JP)

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