Appeal No. 1999-1056
Application No. 08/525,844
variables of the vehicle, namely, yaw rate N* and lateral
acceleration "* according to the formula
T =K{C (V)×V×N*+C (V)×"*}
c 1 2
where C (V) and C (V) denote coefficients having a relationship1 2
to vehicle speed as shown in Figure 7. As can be seen in
Figure 7, Ito weighs the determination of the target steering
reaction more highly toward yaw rate at low speeds and more
highly toward lateral acceleration at high speed, but neither
coefficient is shown to be in the negative range at any speed.
Thus, as correctly pointed out by appellants (main brief, page
7), Ito’s estimated lateral dynamic conditions, i.e., yaw rate
and lateral acceleration, never function to reduce an overall
lateral dynamic condition in a high speed range and to
increase the overall lateral dynamic condition of the vehicle
in a low speed range.
In view of the above, we will not sustain the standing
35 U.S.C. § 103 rejection of claims 1 and 6.
Turning next to independent claim 15, we note that the
claim calls for a vehicle steering control system comprising a
manual steering torque input means for manually applying a
8
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