Method for monitoring and controlling traction motors in locomotives
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Abstract
The present invention is directed to a locomotive comprising energy storage units, such as batteries, a prime energy source, such as a diesel engine, and an energy conversion device, such as a generator. The locomotive comprises one or more of the following features: a separate chopper circuit for each traction motor and a controller operable to control separately and independently each axle/traction motor.
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Citations
31 Claims
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1-20. -20. (canceled)
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21. A method for addressing non-synchronous wheel slippage, comprising:
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providing a plurality of traction motors, each of the plurality of traction motors being independently coupled to and driving at least one wheel;
detecting an operating characteristic of each of the plurality of traction motors;
determining that the at least one wheel corresponding to a first traction motor is experiencing wheel slippage; and
in response to the determining step, reducing power supplied to the first traction motor for a selected period of time while continuing to provide power in excess of the reduced power to the remaining traction motors. - View Dependent Claims (22, 23, 24, 25)
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26. A system for addressing non-synchronous wheel slippage, comprising:
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a plurality of traction motors, each of the plurality of traction motors being independently coupled to and driving at least one wheel;
a plurality of sensors operable to sense an operating characteristic of each of the plurality of traction motors, wherein each of the sensors corresponds to a traction motor; and
a controller operable to determine that the at least one wheel corresponding to a first traction motor is experiencing wheel slippage and, in response thereto, reduce a level of power supplied to the first traction motor for a selected period of time while continuing to provide levels of power in excess of the reduced power to the remaining traction motors. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification