Title:
【発明の名称】オフロード運搬車を推進及び遅くさせるための方法及び装置
Document Type and Number:
Japanese Patent JP3175771
Kind Code:
B2
Abstract:
An improved method and apparatus for powering and controlling the operation of large diesel-electric off-road haulers of the type in which hauler drive wheels are propelled and retarded by DC electric wheel motors powered from on-board generators, optionally supplemented by DC power, from external trolley lines. In the disclosed system, thyristor-type converters connected into the system AC power grid are used to receive supplemental external power from DC trolley lines and supply it into the AC power distribution grid in the propel mode. The use of such thyristor-type converters makes possible the use of supplemental trolley line power without provision of separate switching or control gear to operate the DC wheel motors when trolley line power is received. Thyristor-type converters also may be used to supply current generated by wheel motors in the retarding mode to retarding resistors, making possible the use of the initial electrical power generated by the wheel motors to replace load requirements of the diesel engine, resulting in substantial fuel savings.
Inventors:
Ronald Allen, Johnston
Baker, Dwight
Nelson, Gary Lee
Baker, Dwight
Nelson, Gary Lee
Application Number:
JP50106791A
Publication Date:
June 11, 2001
Filing Date:
November 23, 1990
Export Citation:
Assignee:
Lutor Neo Incorporated
International Classes:
B60K6/20; B60L11/18; B60K17/12; B60L50/12; B60L50/15; B60W10/06; B60W10/08; B60W10/26; B60W20/00; B60L7/10; F02B3/06; (IPC1-7): B60K6/00; B60K17/12; B60L11/06
Domestic Patent References:
| JP5783102A | ||||
| JP56166704A | ||||
| JP53121319A | ||||
| JP59106803A | ||||
| JP6130482B2 |
Other References:
【文献】米国特許4719361(US,A)
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)