Managing wheel slip in a locomotive
First Claim
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1. A method, comprising:
- determining that at least one wheel corresponding to a first traction motor is experiencing wheel slip, wherein the first traction motor is one of a plurality of traction motors, each of the plurality of traction motors being independently coupled to and driving at least one wheel; and
in response to the determining step, incrementally 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 at least one other of the plurality of traction motors, wherein, during the reducing step, the reduced power continues to drive the at least one wheel experiencing wheel slip.
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Abstract
The present invention is directed to the termination of the occurrence of wheel slip/skid and prediction and prevention of the onset of wheel slip/skid in a locomotive. In one configuration, a lookup table of adhesion factors is used to predict the occurrence of wheel slip/skid.
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Citations
19 Claims
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1. A method, comprising:
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determining that at least one wheel corresponding to a first traction motor is experiencing wheel slip, wherein the first traction motor is one of a plurality of traction motors, each of the plurality of traction motors being independently coupled to and driving at least one wheel; and
in response to the determining step, incrementally 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 at least one other of the plurality of traction motors, wherein, during the reducing step, the reduced power continues to drive the at least one wheel experiencing wheel slip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A locomotive, 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, wherein each of the sensors corresponds to a traction motor; and
a controller operable to (a) determine, based on the sensed operating characteristic, that at least one wheel corresponding to a first traction motor is experiencing wheel slippage and (b) in response thereto incrementally reduce 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 at least one other of the plurality of traction motors, wherein the reduced power continues to drive the at least one wheel experiencing wheel slippage. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification