노크 시작 후 안정화되기까지 150ms가 소요되는 경우, 최대 피크 위치는 노크 시작 후 60ms 경과 전에 위치함을 알 수 있었다.
It was found that when 150 ms was taken from the start of the knock to stabilization, the maximum peak position was located before the lapse of 60 ms after the start of the knock.