Steering 3 L2

When a car turns by more than the amount commanded this is known as:

• Oversteer

• Understeer

• Toe out on Turns

• Reverse camber

When a car turns less than driver commands this is known as:

• Understeer

• Oversteer

• Toe out on Turns

• Reverse camber

The purpose of power assisted steering:

• Provides mechanical assistance to driver

• requires more torque at low speed

• Increases driver effort

• assists sudden swerving with rapid deflation

There are three types of PAS.

• Hydraulic, Electro-Hydraulic and Electronic

• Hyper, Electronic and Electra - Hydraulic

• Hyro-electric, Mechanical and Electric

• Electro-magnetic, Hydraulic and Electric

With Elecro-hydralic one of the benefits are:

• less parasitic draw from engine

• Higher ratio pump driven by alternator

• Uses oil to push the electric around

• Is heavier than Hydraulic PAS.

An advantage of EPAS is:

• Lighter than other systems

• Reduces fuel efficiency

• Increases fuel consumption

• Only works when parking

Hydraulic Power steering is only system that allows fail safe if failing.

• True

• False

How many types of hydraulic PAS are there?

• Three, Rack & Pinion,Integral psiton & External cylinder

• Two, Direct & Parallel

• Three, Hydraulic, Electro-hydraulic, Electric

• Two, Rack & Pinion, Steering box

How is the oil directed to the piston in a Hydraulic PAS rack?

• Control valve mounted in pinion housing

• Return valve in outlet of reservoir

• Torsion bar in steering column

• Oil flows to boths sides all times

How is the amount of torque applied measured in an Hydraulic PAS system?

• Torsion bar inside column

• Relief valve in pinion housing

• Steering ratio

• Length of track rod arms