One verb: from “assist in directly controlling” to “directly control”
Applicant amended the independent claims to require activating an automated system configured to directly control a vehicle to change its movement when predicted ability or performance falls below a threshold. The same change was applied to claims 1, 21 and 24, and to withdrawn claim 15.
“assist in directly controlling” → “directly control” the vehicle to change movement in response to determining that the ability to perform the task is below the threshold level.
Why it ranks first. The strategy moved the claims out of performance prediction and into concrete physical control: braking, steering, lane keeping, moving to the roadside, avoiding a collision. The response records that Examiner Grant indicated at interview that the amendments appeared to overcome §101. The subsequent Final Office Action allowed claims 1–5, 8–14 and 21–24.
Caveat. Strongest link in the set, but still not a formal reasons-for-allowance admission. The allowance action does not say the direct-control amendment caused it.