drivetrain
DRIVE-trane
/ˈdraɪvtreɪn/
The group of components that deliver power from the transmission to the wheels.
It excludes the engine itself; the drivetrain starts where the engine ends.
The story behind the word. A compound of 'drive' (to propel) and 'train' (a series of connected parts). It follows the naming convention of 'gear train' or 'power train,' emphasizing the sequential nature of power delivery.
Word relationships
- drive system: Drive system is a more generic term used in various types of machinery.
Commonly confused with
- powertrain: Drivetrain is the transmission, driveshaft, and axles; powertrain is the engine PLUS the drivetrain.
Collocations
- all-wheel drivetrain
- drivetrain efficiency
- drivetrain lash
Example sentences
- "An all-wheel-drive drivetrain provides better traction on slippery surfaces by distributing power to all four wheels." Explaining vehicle traction.
- "Upgrading the drivetrain components can help the car handle the increased torque of a modified engine." Performance tuning.
Memory hook
The 'train' of parts that 'drives' the wheels. Drivetrain = The path to the wheels.
When not to use
Do not use 'drivetrain' if you mean the engine. Use 'powertrain' if you want to include the engine.
Fun facts
- Front-wheel drive drivetrains are generally more space-efficient than rear-wheel drive ones.
- The drivetrain is often the most complex part of a hybrid vehicle because it must manage two power sources.
Related words
Explore more words
transmission, propulsion, Component, traction, mechanism, assembly
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