Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Electric vehicle
Reexamination Certificate
2007-02-15
2011-10-25
Nguyen, John (Department: 3665)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Electric vehicle
Reexamination Certificate
active
08046124
ABSTRACT:
A control apparatus for an electric vehicle includes a road surface condition detection portion, a slip determination portion, a torque reduction device, and a voltage control device. The electric vehicle includes a motor that generates drive power for the electric vehicle, and a drive device that drives the motor. The road surface condition detection portion detects the condition of a road surface on which the electric vehicle is driven. The slip determination portion determines whether the electric vehicle is slipping. The torque reduction device reduces the torque of the motor when the slip determination portion determines that the electric vehicle is slipping. The voltage control device controls a voltage input to the drive device to reduce the voltage when the road surface condition detection portion determines that the road surface has a friction coefficient lower than a predetermined value.
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Muta Koichiro
Nagao Ippei
Denso Corporation
Kenyon & Kenyon LLP
Kiswanto Nicholas
Nguyen John
Toyota Jidosha & Kabushiki Kaisha
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