Title:
ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD FOR CONSTRUCTION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2011/108443
Kind Code:
A1
Abstract:
Under high loads, the amount of fuel injected in the engine is controlled using to the fuel injection protocol of the all-speed governor, and under low loads, the amount of fuel injected in the engine is controlled in compliance with engine output characteristics having an incline shallower than that of the regulation line of the fuel injection protocol of the all-speed governor. As a result, under low loads the rotational speed of the engine increases even if the accelerator pedal control input is less than the maximum control input, which reduces fuel consumption by making it unnecessary for an operator to make accelerator pedal control inputs approaching the maximum control input when it is necessary for the construction equipment to travel at high speed.
Inventors:
SAITO, Yoshiaki (Komatsu Ltd. 3-25-1, Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
齋藤 芳明 (〒55 神奈川県平塚市四之宮３－２５－１ 株式会社小松製作所 開発本部内 Kanagawa, 〒2548555, JP)
齋藤 芳明 (〒55 神奈川県平塚市四之宮３－２５－１ 株式会社小松製作所 開発本部内 Kanagawa, 〒2548555, JP)
Application Number:
JP2011/054197
Publication Date:
September 09, 2011
Filing Date:
February 24, 2011
Export Citation:
Assignee:
KOMATSU LTD. (2-3-6, Akasaka Minato-k, Tokyo 14, 〒1078414, JP)
株式会社小松製作所 (〒14 東京都港区赤坂２－３－６ Tokyo, 〒1078414, JP)
SAITO, Yoshiaki (Komatsu Ltd. 3-25-1, Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
株式会社小松製作所 (〒14 東京都港区赤坂２－３－６ Tokyo, 〒1078414, JP)
SAITO, Yoshiaki (Komatsu Ltd. 3-25-1, Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
International Classes:
F02D29/00; B60K26/02; F02D1/04; F02D29/06
Attorney, Agent or Firm:
SAKAI, Hiroaki (Sakai International Patent Office, Kasumigaseki Building 2-5, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 20, 〒1006020, JP)
Claims:
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