Introduction/NegativeFeedback(MiddleLevel)/CarUphill

提供:一歩一歩
2019年11月29日 (金) 23:47時点におけるAdmin (トーク | 投稿記録)による版
ナビゲーションに移動 検索に移動
POINT!
FlatBeforeUphill-Eng.jpg


Before an uphill (at a flat baseline), we will make the assumption that the car is in homeostasis with adequate strength of the speed-increasing effect of engine revolution as well as normal speed.


UphillBeforeMiddleFeedbacktoEngine-Eng.jpg



Step 1: With uphill, car speed decreases.

This is in the opposite direction to the speed-increasing effect of the engine revolution. Thus, although the strength of the speed-increasing effect of engine revolution was adequate before uphill (at flat baseline), this strength is now too weak (blue) to reverse the low speed produced by uphill. Control by negative feedback is needed.


UphillDuringMiddleFeedbacktoEngine-Eng.jpg


Step 2: With the strength of the speed-increasing effect of the engine revolution before uphill (at flat baseline) being too weak (blue), the negative feedback increases (red) the engine revolution.
The speed-increasing effect of engine revolution becomes stronger, which increases the speed. This will lead to a reverse in the decreased speed because of uphill, increasing it towards normal (baseline) speed.