Title:
COOLING SYSTEM FOR ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2011/077782
Kind Code:
A1
Abstract:
A cooling system for an electric vehicle is provided with a cooling unit for cooling an electric drive unit for electrically driving the vehicle, and a control unit for controlling the cooling unit to control the cooling of the electric drive unit. The control unit controls the cooling unit in a first cooling mode with a first cooling capacity when the force for driving the vehicle by the electric drive unit is in a first operation region, and controls the cooling unit in a second cooling mode with a second cooling capacity higher than the first cooling capacity when the force for driving the vehicle by the electric drive unit is in a second operation region higher than the first operation region. In the second cooling mode, the control unit controls the cooling unit in such a manner that the second cooling capacity increases as the rotation speed of the electric drive unit decreases.
Inventors:
YOKOYAMA, Atsushi (HITACHI LTD. 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
横山 篤 (〒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 機械研究所内 Ibaraki, 〒3120034, JP)
ARAI, Masatsugu (HITACHI LTD. 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
横山 篤 (〒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 機械研究所内 Ibaraki, 〒3120034, JP)
ARAI, Masatsugu (HITACHI LTD. 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
Application Number:
JP2010/064394
Publication Date:
June 30, 2011
Filing Date:
August 25, 2010
Export Citation:
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)
YOKOYAMA, Atsushi (HITACHI LTD. 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
横山 篤 (〒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 機械研究所内 Ibaraki, 〒3120034, 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)
YOKOYAMA, Atsushi (HITACHI LTD. 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
横山 篤 (〒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 機械研究所内 Ibaraki, 〒3120034, JP)
International Classes:
B60L3/00; B60K11/04; B60L1/00
Attorney, Agent or Firm:
NAGAI, Fuyuki (Fukoku Seimei Building 2-2-2, Uchisaiwaicho, Chiyoda-k, Tokyo 11, 〒1000011, JP)
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