What is Power steering? - Automotive dictionary and encyklopedia - all about cars, motorcycles, engines etc.

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(PS) A steering system using hydraulic pressure to increase the driver's turning effort. As the driver turns the steering wheel, steering effort is reduced. The pressure is used either in the gearbox itself or in a hydraulic cylinder attached to the steering linkage. Also called "power-assisted" or "assisted steering." See in-line power steering, integral-type power steering, linkage power steering, speed-sensitive steering, variable assist power steering, variable ratio steering