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Wheel slip correction system

Image Number 4 for United States Patent #7126293.

A wheel slip correction system for an electric traction motor propelled vehicle having a plurality of DC electric traction motors with series connected armature and field windings incorporates an apparatus connected in circuit with each motor for reducing motor armature current in response to a motor speed increase caused by wheel slip. The apparatus is arranged to be non-power dissipative during non-wheel slip conditions.

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