Electricity: motive power systems – Battery-fed motor systems
Reexamination Certificate
2006-05-30
2006-05-30
Ip, Paul (Department: 2837)
Electricity: motive power systems
Battery-fed motor systems
C318S060000, C318S762000, C180S243000
Reexamination Certificate
active
07053568
ABSTRACT:
A battery-powered vehicle for transporting a mined payload or supplies over the roadways existing in or around an underground mine, includes variable voltage, variable frequency drivers that convert DC voltage from a battery into an AC voltage for driving AC induction motors of a front wheel drive system of the vehicle, and a further variable frequency driver that converts DC voltage from the battery into an AC voltage for driving an AC pump motor for supplying hydraulic fluid to hydraulically operated components of the vehicle. A controller controls the operation of the variable voltage variable frequency drivers in response to commands supplied to the controller by an operator of the vehicle.
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Ip Paul
Oldenburg Group Incorporated
Reinhart Boerner Van Deuren s.c.
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