Four Wheel Steering System

Published on January 2017 | Categories: Documents | Downloads: 71 | Comments: 0 | Views: 947
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FOUR WHEEL STEERING
SYSTEM
GUIDED BY:
DR. SUWARNA TORGAL

PRESENTED BY:
NIDHI

KESHARWANI
P V SHREEJIL
PIYUSH DEY
PRATIBHA SOLANKI
PRIYANK BHARTI
SUMEET PATANKAR
SUNIL CHOUDHARY

INTRODUCTION












Four-wheel steering, 4WS, also called rear-wheel
steering or all-wheel steering, provides a means to
actively steer the rear wheels during turning
maneuvers.
The vehicle responds more quickly to steering input
because rear wheel lag is eliminated.
 4WS is a serious effort on the part of automotive
design engineers to provide near-neutral steering.
A vehicle requires less driver input for any steering
maneuver if all four wheels are steering the vehicle.
4WS stabilizes all cornering forces generated while
responding to steering input.
4WS greatly reduces vehicle’s turning circle thus
turning radius reduces up to zero degree.

EFFECT OF FWS

RED LINE REPRESENT – 4 WHEEL
STEERING
GRAY LINE REPRESENT – 2 WHEEL
STEERING

OBJECTIVE






To analyze the theoretical advantages of
four wheel steering system.
By manufacturing ,we will get practical
knowledge of cornering capability,
steering response, straight-line stability
and low-speed maneuverability of the
vehicle.
By manufacturing this system, we will
implement it in BAJA vehicle.

METHADOLOGY










Modification will made in the rear wheel assembly and addition
of one more rack and pinion steering gear box for steering the rear
wheels.
Then a transfer rod will placed in between the front and rear steering gear
box to transfer the motion to rear steering gear box.
Bevel gear is used to transmit the rotary motion perpendicularly, so the
one bevel gear will introduced in the front steering rod. Other bevel gear
will connected to the transfer rod.
Two supports will used to support the transfer rod. Transfer rod will
connected to the rear steering gear box. Rear steering gear box will be
fixed to body by bolts and nuts and the ends of the steering box are
connected to the rear wheel hub where the tires will mounted.
As the steering will steered, the rear wheels also turn by the arrangements
made and the rear wheel turn in the opposite direction.

THANK YOU

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