What is the state of fully depressing the clutch?
2 Answers
Fully depressing the clutch means the transmission loses power, equivalent to a parked state. Below is relevant information about the clutch: 1. Concept: The clutch refers to the separation device between the car engine and the transmission, also known as the clutch. In automatic transmission cars, the clutch is integrated into the transmission to achieve automatic shifting. The clutch should not be used as a brake; if the clutch is depressed while going downhill, the car's speed will increase. 2. Working Principle: When disengaged, it should completely separate; when engaged, it should be smooth, and it should have good heat dissipation capabilities. The rotational inertia of the driven part should be as small as possible. This way, when shifting gears by disengaging the clutch, the speed of the part connected to the transmission input shaft can change more easily, reducing gear impact.
Last time when I helped my neighbor fix his old manual transmission car, I specifically researched this issue. When the clutch pedal is fully depressed, it essentially disconnects the power between the engine and the transmission. The force applied pushes the release bearing against the pressure plate, completely separating the clutch disc from the engine flywheel. When I inspected his car, I found that if gear shifting remains difficult even with the clutch fully depressed, it's most likely due to issues with either the release bearing or pressure plate. During normal driving, fully depressing the clutch at traffic lights gives your left foot a brief rest, though keeping it pressed for too long can easily cause ankle fatigue. Another detail is that engine RPM becomes noticeably lighter when fully depressed because the transmission resistance disappears.
