Appeal No. 1999-1058 Page 6
Application No. 08/832,960
unit and a solenoid actuating circuit, for processing the
wheel speed signals so as to determine whether the front and
rear wheels are exhibiting a tendency to enter a locked state
or recovering from a locked state, and for outputting pressure
control signals for selectively reducing, maintaining, and
increasing a braking pressure applied to the wheels; and a
fluid pressure control unit, including solenoids (SL -SL ) for
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controlling the braking pressure applied to the right front
and left front wheels in accordance with the pressure control
signals and solenoids (SL -SL ) for controlling the braking
5 8
pressure applied to the right rear and left rear wheels in
accordance with the pressure control signals. The central
processing unit is programed to select one of a first control
mode in which the pressure control signals for selectively
reducing, maintaining, and increasing a braking pressure
applied to the right front and left front wheels are
determined independently from one another, and a second
control mode in which the pressure control signals for the
right front and left front wheels are determined based on a
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Last modified: November 3, 2007