Appeal No. 1999-1056
Application No. 08/525,844
change of lateral acceleration in the steering reaction
force”; and (5) “high and low vehicle speed ranges.” Based on
these findings, the examiner determined that it would have
been obvious to modify the vehicle steering control system of
Yamamoto “by incorporation [sic] the change in yaw rate
according to the speed range from the system and method of
Ito” in order to obtain various advantages thereof (id.).
Based on our review, we can find no teaching or
suggestion in Ito of a control means for controlling the
actuating steering torque according to a lateral dynamic
condition, whether detected or estimated, so that actuating
steering torque is dependent on the lateral dynamic condition
and a change rate of the lateral dynamic condition in such a
manner that the lateral dynamic condition contributes to the
actuating steering torque so as to reduce the detected lateral
dynamic condition and the change rate of the lateral dynamic
condition contributes to the actuating steering torque so as
to reduce the detected lateral dynamic condition in a high
speed range and so as to increase the detected lateral dynamic
condition in a low speed range. Accordingly, we agree with
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