Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Control of power distribution between vehicle axis or wheels
Reexamination Certificate
2005-03-29
2005-03-29
Black, Thomas G. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Control of power distribution between vehicle axis or wheels
C701S085000, C701S088000, C701S089000, C701S090000, C477S035000, C475S223000, C475S224000, C180S248000
Reexamination Certificate
active
06873896
ABSTRACT:
A drive-force distribution controller controls a drive-force transmission apparatus of a vehicle in order to control transmission of drive force to rear wheels or front wheels of the vehicle in accordance with a designated drive-force transmission ratio. The drive-force transmission ratio is changed on the basis of vehicle speed, differential rotational speed (speed difference between the front and rear wheels), and throttle opening. Alternatively, the drive-force transmission ratio is changed on the basis of vehicle speed, throttle opening, and throttle open speed. The change speed of current which is supplied to the drive-force transmission apparatus in order to control the drive-force transmission ratio is adjusted in accordance with a command current filter value which is determined on the basis of vehicle speed and a command current filter map of a vehicle-speed responsive type.
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Maekawa Akio
Shigeta Ryohei
Black Thomas G.
Broadhead Brian J
Toyoda Koki Kabushiki Kaisha
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