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Title:
ELECTRICALLY DRIVEN VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/163052
Kind Code:
A1
Abstract:
A dump truck (1) is provided with: travel motors (14L), (14R); inverters (24L), (24R); rear wheels (9L), (9R); a brake resistor (25); a resistor temperature sensor (30); speed sensors (18L), (18R); and a travel device control unit (40). The travel device control unit (40) is equipped with a speed limit calculation device (41) for calculating a forward speed limit value (Vflim) and a reverse speed limit value (Vrlim) on the basis of the temperature (Tb) of the brake resistor (25) obtained by the resistor temperature sensor (30). The travel device control unit (40) controls the speeds of the travel motors (14L), (14R) so as not to exceed the forward speed limit value (Vflim) and the reverse speed limit value (Vrlim).

Inventors:
KIKUCHI Jun (Hitachi Construction Machinery Co. Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
ISHIDA Seiji (Hitachi Construction Machinery Co. Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
ISHIDA Toshihiko (Hitachi Construction Machinery Co. Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
Application Number:
JP2018/006442
Publication Date:
August 29, 2019
Filing Date:
February 22, 2018
Export Citation:
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Assignee:
HITACHI CONSTRUCTION MACHINERY CO., LTD. (16-1, Higashiueno 2-chome Taito-k, Tokyo 15, 〒1100015, JP)
International Classes:
B60L15/00; B60T8/17
Attorney, Agent or Firm:
HIROWA PATENT FIRM (4F. Nishishinjuku Koide Bldg, 1-3 Nishishinjuku 3-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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