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Power steering is a system for reducing a driver's effort to turn a steering wheel of a motor vehicle, by using a power source to assist steering. [1]Hydraulic or electric actuators add controlled energy to the steering mechanism, so the driver can provide less effort to turn the steered wheels when driving at typical speeds, and considerably reduce the physical effort necessary to turn the ...
The steering box contains an "hour glass" cam machined with a varying helix angle to provide the variable steering ratio. [2] In common with other power steering systems, control of power assistance in response to steering inputs is via a hydraulic control valve in the input shaft of the cam.
A Hydraulic Power Steering (HPS) uses hydraulic pressure supplied by an engine-driven pump to assist the motion of turning the steering wheel. Electric Power Steering (EPS) is more efficient than hydraulic power-steering, since the electric power-steering motor only needs to provide assistance when the steering wheel is turned, whereas the ...
The recirculating ball steering mechanism contains a worm gear inside a block with a threaded hole in it; this block has gear teeth cut into the outside to engage the sector shaft (also called a sector gear) which moves the Pitman arm. The steering wheel connects to a shaft, which rotates the worm gear inside of the block.
Active steering describes a type of power electric variable gear ratio power steering technology introduced by BMW in 2003 first appearing on the redesigned 5 Series which varies the degree that the wheels turn in response to the steering wheel. At lower speeds, this technology reduces the amount that the steering wheel must be turned ...
Power steering assembly and component; Rack end; Shock absorber; Spindle; Spring. Air spring; Coil spring; Leaf and parabolic leaf spring; Rubber spring; Spiral spring; Stabilizer bars and link; Steering arm; Steering box; Steering pump; Steering column assembly; Steering rack (a form of steering gear; see also rack and pinion and recirculating ...