Appeal No. 2002-1828
Application 09/424,606
described between first and second injection modes and includes
both transitional operation at a first change speed in the first
mode before the actual changeover point and transitional
operation at a second change speed in the second mode immediately
following changeover, with gradual transition to normal second
mode operation. At column 6, lines 12-24, it is made clear that
the air-fuel ratio transition means sets the first and
second change speeds in dependence on a quantity of intake
air amount adjustment, which is effected by intake air
amount adjusting means provided in the internal combustion
engine, for adjusting the intake air amount in accordance
with the output from the acceleration state detecting means.
In this case, the first and second change speeds can be set
to follow a control for increasing or decreasing the intake
air amount, so that the fuel injection amount can be changed
depending on the increasingly or decreasingly controlled
intake air amount. As a result, it is possible to
adequately prevent a change in the engine output torque upon
changeover the injection mode.
Although Iida ‘947 provides for transitional operation in
both the first and second modes around the injection mode
changeover point, we note that appellant’s claims on appeal do
not preclude additional transitional operation in the first mode
prior to the changeover point, and we emphasize again that Iida
‘947 clearly provides for transitional operation of the second
mode initially upon switching from the first mode to the second
mode and then switches from transitional operation of the second
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