Patent ID: 6400111
Filing Date: 2002-06-04
Classification: B60S,Y10S

Abstract:
A windshield wiper/washer system for a locomotive having a relatively high voltage power source, the system comprising:a first relatively low voltage DC electric motor connected in driving relationship to a windshield wiper system; a second relatively low voltage DC electric motor connected in driving relationship to a windshield washer system; a DC to DC power convertor connected to receive power from the relatively high voltage locomotive power source and being operative to convert the relatively high voltage to a relatively low voltage suitable for powering said first and second DC electric motors, said power convertor being connected to supply DC electric power to said first and second DC electric motors; a controller operatively connected with said convertor for enabling controlled delivery of power to each of said first and second DC electric motors; and said power convertor when operating having a dynamic response characteristic emulating the electric power characteristics of a conventional vehicle battery whereby the power convertor can supply relatively high currents with a drooping output voltage to said first DC electric motor to allow said first DC motor to overcome high torque load conditions.