Motor vehicles – Power – Electric
Reexamination Certificate
2007-07-17
2007-07-17
Restifo, Jeff (Department: 3618)
Motor vehicles
Power
Electric
C180S065800, C903S945000, C903S945000
Reexamination Certificate
active
11029237
ABSTRACT:
A vehicle electric drive system has an internal combustion engine which drives an electric generator. The generator powers a motor which drives the wheels. The system has operator controls including a speed control member movable from a zero speed position to a high speed position, an FNR direction control member having forward, neutral and reverse positions. The system also includes a wheel speed sensor and an electronic control unit. Upon startup, the control unit senses the position of the direction control member, senses wheel speed, and senses position of the speed control member. The controller prevents vehicle operation if the direction control member is not in its neutral position, or the sensed wheel speed is not close to zero, or the speed control member is not near its zero speed position. The controller permits vehicle operation if the direction control member is in its neutral position, and the sensed wheel speed is close to zero, and the speed control member is near its zero speed position.
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Kasten Robert Eugene
Kizlyk Mervin Peter
Seksaria Arun Kumar
Deere & Company
Restifo Jeff
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