CONTROL DEVICE AND CONTROL METHOD OF SECONDARY BATTERY

WIPO Patent Application WO/2011/142023

A1

A control circuit (100) includes a computation unit (110), a determination unit (130), a display control unit (140), an electricity restriction unit (150), and a start-up prohibition unit (160). The computation unit (110) converts each respective parameter that is computed on a per deterioration factor basis of a lithium-ion battery (lithium precipitation) into a battery age. If at least one of the battery ages reaches an upper bound age, the determination unit (130) determines that a battery diagnosis is necessary. If it is determined that the battery diagnosis is necessary, the display control unit (140) displays a diagnosis request message on a display device, recommending the battery diagnosis to a user. If a result of the battery diagnosis is not received even after the commencement of the display of the diagnosis request message, the electricity restriction unit (150) restricts the battery charge-discharge electricity. If the result of the battery diagnosis is not received even after the restriction of the battery charge-discharge electricity, the start-up prohibition unit (160) prohibits the vehicle's drive system from being started up.

MATSUMOTO JUNICHI (JP)
KAITA KEIJI (JP)
TEZUKA TAKAYOSHI (JP)
ISHISHITA TERUO (JP)

PCT/JP2010/058160

November 17, 2011

May 14, 2010

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TOYOTA MOTOR CO LTD (JP)
MATSUMOTO JUNICHI (JP)
KAITA KEIJI (JP)
TEZUKA TAKAYOSHI (JP)
ISHISHITA TERUO (JP)

H01M10/48; B60L3/00; B60L50/15; B60L50/16; G01R31/36; H02J7/00

JP2009123435A	2009-06-04
JP2008273371A	2008-11-13
JP2009165263A	2009-07-23
JP2008211955A	2008-09-11
JP2010022154A	2010-01-28
JP2003297435A	2003-10-17

See also references of EP 2571093A4

FUKAMI, Hisao et al. (JP)
Hisao Fukami (JP)

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