Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
VEHICLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/135623
Kind Code:
A1
Abstract:
Provided is a vehicle system in which the stability of a control system is improved. The vehicle system comprises: U-, V-, and W-phase circuits configured with upper arms and lower arms; a power conversion device having a control circuit; a plurality of battery modules in which a plurality of battery cells are connected in series; and a DC power supply having a controller for detecting the abnormalities of the battery cells. The control circuit performs control so that a three-phase short-circuit period in which one of the upper and upper arms of the U-, V-, and W-phases are all in a nonconductive state and the other arms are all in a conductive state is present in an AC output cycle and the three-phase short-circuit period in the state in which an abnormality is detected in the DC power supply is set longer than the three-phase short-circuit period in the normal state of the DC power supply.

Inventors:
OYAMA, Kazuto (HITACHILTD., 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
大山和人 (〒34 茨城県ひたちなか市堀口832番地2 株式会社 日立製作所 電動力応用統括推進本部内 Ibaraki, 〒3120034, JP)
MIYAZAKI, Hideki (HITACHILTD., 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
宮崎英樹 (〒34 茨城県ひたちなか市堀口832番地2 株式会社 日立製作所 電動力応用統括推進本部内 Ibaraki, 〒3120034, JP)
FURUKAWA, Kimihisa (HITACHILTD., 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
古川公久 (〒34 茨城県ひたちなか市堀口832番地2 株式会社 日立製作所 電動力応用統括推進本部内 Ibaraki, 〒3120034, JP)
Application Number:
JP2010/003037
Publication Date:
November 03, 2011
Filing Date:
April 28, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
株式会社 日立製作所 (〒80 東京都千代田区丸の内一丁目6番6号 Tokyo, 〒1008280, JP)
OYAMA, Kazuto (HITACHILTD., 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
大山和人 (〒34 茨城県ひたちなか市堀口832番地2 株式会社 日立製作所 電動力応用統括推進本部内 Ibaraki, 〒3120034, JP)
MIYAZAKI, Hideki (HITACHILTD., 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
宮崎英樹 (〒34 茨城県ひたちなか市堀口832番地2 株式会社 日立製作所 電動力応用統括推進本部内 Ibaraki, 〒3120034, JP)
FURUKAWA, Kimihisa (HITACHILTD., 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
International Classes:
B60L9/18; B60L3/00; H02M7/48
Attorney, Agent or Firm:
INOUE, Manabu (6-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 20, 〒1008220, JP)
Download PDF:
Claims: