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Difficulty: MediumUpshifting and Double Clutching

To complete a double-clutch upshift, a driver must press the throttle while the gear selector is in neutral so that engine speed increases to match the next gear.

Answer: Answer

Answer

False
The statement is false. When operating an unsynchronized manual transmission, moving to a higher gear means the engine must turn at a lower RPM for the current road speed. During a double-clutch upshift, the driver releases the clutch pedal in neutral to connect the input shaft and lets the engine RPM drop to match the higher gear before clutching and engaging that gear. Pressing the throttle in neutral increases engine speed, which is the technique used exclusively for downshifting.

Step-by-Step Solution

1
Examine the mechanical relationship between gear ratios and engine RPM during an upshift.
Higher transmission gears operate at lower engine RPM for a given road speed.
Understanding the change in gear ratios dictates whether the engine needs to slow down or speed up during neutral synchronization.
2
Identify the required engine speed adjustment during the neutral phase of a double-clutch upshift.
The driver must allow engine RPM to drop naturally after releasing the clutch in neutral.
Pressing the throttle would raise RPM, which prevents the transmission input shaft from slowing down to match the higher gear.
3
Differentiate upshifting technique from downshifting technique.
Applying throttle in neutral is strictly a downshifting step used to match higher RPM in a lower gear.
Because the statement asserts that throttle input is required for an upshift, the statement is false.

Key Concept

Engine RPM synchronization differences between upshifting and downshifting during double clutching
Estimated Time:45s
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Topics

Upshifting and Double Clutching

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