- automatic four-wheel drive
- (A4WD) A driving system that automatically engages 4WD as needed, usually by monitoring differences in individual wheel speeds and thus sensing when a tire is slipping.
Dictionary of automotive terms. 2015.
automatic four-wheel drive
Look at other dictionaries:
four-wheel drive — (4WD) A type of drive system in which both front wheels are connected to its own differential and axles, and both back wheels are connected to its own differential and axles. Between these two differentials there is a transfer case which allows… … Dictionary of automotive terms
Four-wheel drive — This article is about the class of vehicle drivetrains. For other uses, see Four by four/Four wheel drive (disambiguation). All wheel drive redirects here. For the all wheel drive in motorcycles, see two wheel drive. The Jeep Wrangler is a 4WD… … Wikipedia
Quattro (four wheel drive system) — quattro (meaning four in Italian), is the name used by Audi AG to indicate that four wheel drive (4WD) technologies or systems are used on specific models of the Audi automobiles.Audi.com Glossary [http://www.audi.com/audi/com/en2/tools/glossary/e… … Wikipedia
real-time four-wheel drive — An automatic four wheel drive engagement by means of an electro hydraulic clutch or a viscous coupling incorporated in the drivetrain … Dictionary of automotive terms
Jeep four wheel drive systems — Jeep uses a variety of four wheel drive and all wheel drive systems on their various vehicles. These range from basic part time systems that require the driver to move a control lever to send power to four wheels, to permanent four wheel systems… … Wikipedia
drive — [1] to travel in a car as in the expression, We drove to Chicago. [2] to operate a vehicle as in the expression, Martha drove to New York by herself. [3] to cause a wheel, shaft, etc. to turn or rotate. [4] to propel a vehicle. [5] a journey in a … Dictionary of automotive terms
Drive shaft — This article is about the mechanical device. For the fictional music group from the American television series Lost , see Charlie Pace. Not to be confused with Axle. Drive shaft with universal joints at each end and a spline in the centre A drive … Wikipedia
Hybrid Synergy Drive — Hybrid Synergy Drive, (HSD) is a set of hybrid car technologies developed by Toyota and used in the company s Prius, Highlander Hybrid, Camry Hybrid, Lexus RX 400h, Lexus GS 450h, and Lexus LS 600h/LS 600hL automobiles. It is also used in the… … Wikipedia
Automatic transmission — An automatic transmission (commonly AT or Auto ) is an automobile gearbox that can change gear ratios automatically as the vehicle moves, freeing the driver from having to shift gears manually. Similar but larger devices are also used for heavy… … Wikipedia
Four-slide — A four slide machine The same four slide machine from another angle A fou … Wikipedia
