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| Number | Title | Issue Date |
| 7467830 | Managing wheel slip in a locomotive 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 whe... | 12/23/2008 |
| 7349797 | Emission management for a hybrid locomotive A locomotive is provided that includes: a receiver operable to receiving a locating signal, the locating signal indicating a current spatial location of a selected locomotive and a processor operable to (a) determi... | 03/25/2008 |
| 7124691 | Method for monitoring and controlling locomotives 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... | 10/24/2006 |
| 7084602 | Predicting wheel slip and skid in a locomotive 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 whe... | 08/01/2006 |
| 7064507 | Managing wheel skid in a locomotive 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 whe... | 06/20/2006 |
| 6984946 | Method for monitoring and controlling traction motors in locomotives 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... | 01/10/2006 |
| 6812656 | Sequenced pulse width modulation method and apparatus for controlling and powering a plurality of direct current motors A control system for individually controlling power from a single voltage source to a plurality of motors is described. A chopper circuit, in conjunction with the control system, generates drive-pulses, which operates the IGBT switching devices to sequentially provi... | 11/02/2004 |
