Title:
ELECTRIC DRIVE VEHICLE
Document Type and Number:
WIPO Patent Application WO/2011/052655
Kind Code:
A1
Abstract:
Disclosed is an electric drive vehicle provided with a long-life diesel boost type power circuit, the circuit layout of which can be implemented inexpensively and in a straightforward manner. The electric drive vehicle comprises: an engine (03); a generator (04) driven by the engine (03); a power circuit (30) which provides, as the drive voltage of a load device (12), generator voltage (VR) obtained by rectifying generator output (PR) and trolley voltage (VL) obtained by rectifying received power (PL) from a trolley power supply line (10); and a control means (20) which controls drive of the engine (03) and opening/closing of a plurality of switches provided within the power circuit (30). In the power circuit (30), the set of a second rectifying means (D1) which rectifies the received power from the trolley power supply line (10) and a second switch (S2) connected in series with the second rectifying means (D1) is connected in parallel with respect to the set of a first rectifying means (05) which rectifies the generator output (PR) and a first switch (S1) connected in series with the first rectifying means (05), and a third switch (S3) is connected in parallel with respect to the second switch (S2).
Inventors:
SASAKI Masataka (HITACHI LTD., 1-1, Omikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
佐々木 正貴 (〒92 茨城県日立市大みか町七丁目１番１号 株式会社日立製作所 日立研究所内 Ibaraki, 〒3191292, JP)
佐々木 正貴 (〒92 茨城県日立市大みか町七丁目１番１号 株式会社日立製作所 日立研究所内 Ibaraki, 〒3191292, JP)
Application Number:
JP2010/069105
Publication Date:
May 05, 2011
Filing Date:
October 27, 2010
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY CO., LTD. (5-1 Koraku 2-chome, Bunkyo-ku Tokyo, 63, 〒1128563, JP)
日立建機株式会社 (〒63 東京都文京区後楽二丁目５番１号 Tokyo, 〒1128563, JP)
SASAKI Masataka (HITACHI LTD., 1-1, Omikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
日立建機株式会社 (〒63 東京都文京区後楽二丁目５番１号 Tokyo, 〒1128563, JP)
SASAKI Masataka (HITACHI LTD., 1-1, Omikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
International Classes:
B60W10/08; B60L9/18; B60L11/08; B60W10/06; B60W20/00
Attorney, Agent or Firm:
The Patent Body Corporate TAKEWA INTERNATIONAL PATENT OFFICE (Kashiwaya Bldg, 6-13 Nishishinbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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