Title:
DRIVE CONTROL DEVICE FOR WORKING VEHICLE
Document Type and Number:
WIPO Patent Application WO/2011/086801
Kind Code:
A1
Abstract:
A drive control device for a working vehicle, not causing a variation in power when travel drive devices are switched between each other and having high efficiency characteristics.
A working vehicle comprises: a first travel drive device (12) provided with an engine (1), an electricity generator (2), a hydraulic pump (11), a torque converter (5), and a transmission (6); and a second travel drive device (13) driven by an electric motor (8) to cause the vehicle to travel. A drive power switching means (20A) switches between the first travel drive device (12) and the second travel drive device (13). A travel means switching section (20A2) switches between the first travel drive device (12) and the second travel drive device (13) so that, according to the travel speed of the vehicle, the drive in a high-speed region can be performed by the first travel drive device (12) and the drive in a low-speed region can be performed by the second travel drive device (13).
Inventors:
KANEKO Satoru (HITACHI LTD., 1-1, Ohmikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
金子 悟 (〒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)
IKIMI Takashi (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
伊君 高志 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
金子 悟 (〒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)
IKIMI Takashi (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
伊君 高志 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
Application Number:
JP2010/072415
Publication Date:
July 21, 2011
Filing Date:
December 13, 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)
KANEKO Satoru (HITACHI LTD., 1-1, Ohmikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
金子 悟 (〒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)
IKIMI Takashi (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, 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)
KANEKO Satoru (HITACHI LTD., 1-1, Ohmikacho 7-chome, Hitachi-sh, Ibaraki 92, 〒3191292, JP)
金子 悟 (〒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)
IKIMI Takashi (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
International Classes:
B60W10/10; B60K6/445; B60K6/547; B60L11/14; B60W10/08; B60W20/00; E02F9/20; E02F9/22
Attorney, Agent or Firm:
KASUGA Yuzuru (Torii-nihonbashi Bldg, 4-1 Nihonbashi-honcho 3-chome, Chuo-k, Tokyo 23, 〒1030023, JP)
Claims: