Motor vehicles – Power – Electric
Reexamination Certificate
2009-05-11
2010-11-30
Vanaman, Frank B (Department: 3618)
Motor vehicles
Power
Electric
C180S065100, C903S947000
Reexamination Certificate
active
07841434
ABSTRACT:
In an electric drive system for a vehicle, an alternator is driven by an engine to generate electric power which is used to drive a motor to generate a driving force. During a retardation of the vehicle, the motor is operated as an alternator to convert kinetic energy to electric energy which is used to retard the vehicle. A retard resistor is provided for absorbing electric energy generated during the retardation state. The retard resistor is cooled down by an AC blower.
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Japanese Office Action issued in corresponding Japanese Patent Application No. 2004-358752, dated Nov. 10, 2009.
Imaie Kazuhiro
Kiyofuji Yasuhiro
Oku Shintarou
Shimada Keizo
Sugawara Naoshi
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Hitachi Construction Machinery Co. Ltd.
Vanaman Frank B
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