Appeal No. 1997-2478
Application 08/361,554
surface (column 5, line 66 through column 6, line 9).
According to Kawagoe, “by adjusting the control
characteristics depending upon the road surface conditions,
erroneous detection of suspension control criteria requiring
harder suspension characteristics can be satisfactorily and
successfully avoided” (column 4, lines 43-47).
Therefore, while Kawagoe certainly teaches the use of
road roughness or smoothness to adjust the threshold value of
the preselected control parameter to make the control system
more precisely suited to vehicle driving conditions, it does
not teach, suggest or infer that road roughness or smoothness
should be determined in the way now called for in the claims,
namely, by evaluating upward and downward acceleration, or
upward and downward velocity derived therefrom.
As to Hiwatashi, this reference is directed to a control
means for controlling an automotive vehicle suspension system
comprising air suspension units 1 connected between the
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