MULTI-POWER SOURCE LOCOMOTIVE SELECTION

    公开(公告)号:CA2659460A1

    公开(公告)日:2007-12-21

    申请号:CA2659460

    申请日:2007-06-15

    Abstract: The present invention is directed to applying various control options for selecting the number of operating power sources for a multi-power source ve hicle comprised of a number of prime power sources and, optionally including energy storage systems. The invention is applicable to large vehicles such as locomotives, mining trucks, tugboats and large cranes. The present invent ion is directed specifically at providing selectable operating modes for dif ferent locomotive speed ranges and work loads. The invention is based on a c ommon DC bus electrical architecture so that prime power sources need not be synchronized. The invention includes multiple- engine locomotives in which the engine systems may be electrically connected in parallel or in series or in combinations of parallel and series to a DC bus.

    A METHOD FOR MONITORING AND CONTROLLING LOCOMOTIVES

    公开(公告)号:CA2537037A1

    公开(公告)日:2005-04-07

    申请号:CA2537037

    申请日:2003-08-26

    Abstract: The present invention is directed to a locomotive comprising energy storage units such as batteries, a prime energy source (1001), such as a diesel engine, and an energy conversion device (1002), such as a generator. The locomotive comprises one or more of the following features: a separate chopp er circuit (1010) for each traction motor (1008); energy storage units (1003) that can be switched from parallel to series electrical connections, a fluid - activated anti-lock brake system (1009), a controller (1015) operable to control separately and independently each axle(1006)/traction motor (1008), and a controller (1051) operable to control automatically a speed of the locomotive. The present invention includes an integrated system for monitoring, controlling and optimizing an electrically powered locomotive using a combination of sensors and software to provide feedback that optimiz es power train efficiency and individual drive axle (1006) performance for a locomotive that utilizes one of several possible electrical energy storage systems to provide the tractive power. The net result is a locomotive that h as an integrated system of control over all aspects of the locomotive power tra in including control over individual drive axles (1006), especially during acceleration, braking and non-synchronous wheel slip.

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