Appeal No. 1997-2478
Application 08/361,554
roughness” (answer, sentence spanning pages 7 and 8).
We do not agree.
Akatsu, the examiner’s primary reference, discloses a
suspension control system for an automotive vehicle designed
to effectively reduce pitching motion. To this end, a
variable
hydraulic damper is provided at each wheel. With reference to
Figure 6, and considering the control of the left front wheel,
which is exemplary of each vehicle wheel, a vertical
acceleration sensor 114 generates a signal G that isFL ZFL
integrated by integrator circuit 122 and then passed through
FL
fixed-gain amplifier 124 to provide a signal S . ThisFL ZFL
signal is modified in a manner described below to derive a
signal S that controls the pressure control valve 18 of the
FL
hydraulic damper 15A of the wheel.
Akatsu’s control system also includes gain-controlled
amplifiers 116 and 120 whose levels of gain are set, in part,
in accordance with signals derived from sensors 110 and 112,
4
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