steering system

Also found in: Dictionary, Thesaurus, Wikipedia.
Related to steering system: suspension system

steering system,

in automobiles, steering wheel, gears, linkages, and other components used to control the direction of a vehicle's motion. Because of friction between the front tires and the road, especially in parking, effort is required to turn the steering wheel. To lessen the effort required, the wheel is connected through a system of gears to components that position the front tires. The gears give the driver a mechanical advantage, i.e., they multiply the force he applies, but they also increase the distance through which he must turn the wheel in order to turn the tires a given amount. Various types of gear assemblies, none with any decisive advantages over the others, are used, although some manufacturers prefer a rack-and-pinion system. In faster, heavier cars the amount of force required to turn the tires can be very great. Many of these cars use a power-steering system. The system contains a hydraulic booster, which operates when the engine is running and supplies most of the necessary force when the driver turns the wheel. When a vehicle turns at a rate exactly proportional to the rate at which the steering wheel is turned, it is said to have neutral steering; if it turns at a slower rate it is said to understeer; if it turns faster it is said to oversteer. While any vehicle can react in any of these ways under extreme conditions, most automobiles are built to understeer. Racing vehicles are often designed for neutral steering; few vehicles are built to oversteer, since this is considered hazardous by many authorities. As a safety feature in many modern cars the column on which the steering wheel is mounted will collapse if the driver is thrown against the wheel in a collision.

Steering System


the mechanism for changing the direction of movement of a motor vehicle. The steering system consists of a steering gear and a linkage.

In the worm-and-roller gear used in most passenger cars, the worm is mounted at the end of the steering shaft, and the roller is mounted on the pitman arm, which is connected to the drag link. The steering linkage consists of drag links, tie rods, and the steering knuckle arms of the steerable wheels, interconnected by means of ball joints. The design of the steering system depends on the type of front suspension used. With independent front suspension the tie rod is divided so that the steering gear does not restrict the vertical movements of the independently suspended wheels.

References in periodicals archive ?
Maval is a provider of new and remanufactured steering system components for the automotive, off-road, performance and specialty vehicle markets.
Here is how it works: the electrohydraulic steering system is an independent power-on-demand system for the leading or trailing axles of heavy trucks and buses.
Product-type segmentation of the automotive steering system market
In this paper, a novel friction compensation control method is proposed to compensate both the dynamic and static friction torque for steering system.
Get More Details on this Report and a Full Table of Contents at Global Automotive Steering System Market 2015-2019
Many steering system configurations can include multiple steering stations and dual or triple cylinders.
The DTX steering system offers the user a wide range of flexibility.
Its high-efficiency systems integration and low standby electrical demand set the standard in the industry for a vehicle's steering system energy consumption.
Like any X-by-wire system, the DC steering system eliminates the physical connection between the steering wheel and the steering components.
If the steering system is compliant, then the design of the steering system must be accounted for in any stability analysis.
So, inspect the steering system often for damage if you've removed the dampers.
Uflex's most basic steering system is the Rotech model ($180).