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    4 Wheel Steering System

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    बृज भूषण सिंह
    This document summarizes a student project on developing a four-wheel steering system. It introduces the project members and guides. It then provides background on four-wheel steering, explaining how the rear wheels turn in relation to the front wheels depending on speed to improve steering response, stability, and reduce turning radius. The document lists advantages like improved cornering, steering response, and lane changing. Disadvantages include increased cost and potential for component failure. It describes applications for parking, intersections, slippery roads, and narrow roads. Finally, it outlines initial work done including literature reviews, market surveys, and project planning.

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    © All Rights Reserved
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    4 Wheel Steering System

    Uploaded by

    बृज भूषण सिंह
    368 views7 pages
    This document summarizes a student project on developing a four-wheel steering system. It introduces the project members and guides. It then provides background on four-wheel steering, explaining how the rear wheels turn in relation to the front wheels depending on speed to improve steering response, stability, and reduce turning radius. The document lists advantages like improved cornering, steering response, and lane changing. Disadvantages include increased cost and potential for component failure. It describes applications for parking, intersections, slippery roads, and narrow roads. Finally, it outlines initial work done including literature reviews, market surveys, and project planning.

    Original Description:

    this is a project synopsis for 4 Wheel Steering System (mechanical engg.).

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    This document summarizes a student project on developing a four-wheel steering system. It introduces the project members and guides. It then provides background on four-wheel steering, explaining how the rear wheels turn in relation to the front wheels depending on speed to improve steering response, stability, and reduce turning radius. The document lists advantages like improved cornering, steering response, and lane changing. Disadvantages include increased cost and potential for component failure. It describes applications for parking, intersections, slippery roads, and narrow roads. Finally, it outlines initial work done including literature reviews, market surveys, and project planning.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    368 views7 pages

    4 Wheel Steering System

    Uploaded by

    बृज भूषण सिंह
    This document summarizes a student project on developing a four-wheel steering system. It introduces the project members and guides. It then provides background on four-wheel steering, explaining how the rear wheels turn in relation to the front wheels depending on speed to improve steering response, stability, and reduce turning radius. The document lists advantages like improved cornering, steering response, and lane changing. Disadvantages include increased cost and potential for component failure. It describes applications for parking, intersections, slippery roads, and narrow roads. Finally, it outlines initial work done including literature reviews, market surveys, and project planning.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
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    The document discusses a student project on developing a four wheel steering system. It aims to improve vehicle maneuverability and stability.

    Four wheel steering involves steering the rear wheels along with the front wheels. The rear wheels turn in the same direction as the front wheels at high speeds and opposite at low speeds to decrease the turning radius.

    Advantages include improved cornering stability, steering response, straight line stability at high speeds, and a smaller turning radius for parking and maneuvers.

    G. L.

    Bajaj Institute of Technology and


    Management , Gr. Noida
    SESSION 2014 - 15
    PROJECT TITLE
    FOUR WHEEL STEERING SYSTEM
    DEPARTMENT
    OF
    MECHANICAL ENGINEERING
    Project Members
    1. Suraj Kumar (1119240058)
    2. Rakesh Singh (1119240045)
    3. Indrajeet Yadav (1119240020)
    4. Aman Kumar (1219240903)
    5. Parikshit Singh (1219240907)

    Project Guides
    1. Mr. Mukesh Kumar
    2. Mr. Sushil Madhesiya




    Introduction
    This project aims at developing a 4 Wheel Steering System which would cater to the needs of people. This system is
    employed to improve steering response, increase vehicle stability while maneuvering at high speed, or to decrease turning
    radius at low speed.

    In four wheel steering the rear wheels turn with the front wheels thus increasing the efficiency of the vehicle. The direction
    of steering the rear wheels relative to the front wheels depends on the operating conditions. At low speed wheel movement
    is pronounced, so that rear wheels are steered in the opposite direction to that of front wheels. At high speed, when
    steering adjustments are subtle, the front wheels and the rear wheels turn in the same direction. By changing the direction
    of the rear wheels there is reduction in turning radius of the vehicle which is efficient in parking, low speed cornering and
    high speed lane change.

    In city driving conditions the vehicle with higher wheelbase and track width face problems of turning as the space is
    confined, the same problem is faced in low speed cornering. Usually customers pick the vehicle with higher wheelbase and
    track width for their comfort and face these problems, so to overcome this problem a concept of four wheel steering can be
    adopted in the vehicle. Four wheel steering reduces the turning radius of the vehicle which is effective in confined space, in
    this project four wheel steering is adopted for the existing vehicle and turning radius is reduced without changing the
    dimension of the vehicle.

    Advantages
    Superior cornering stability: The vehicle cornering behavior becomes more stable and controllable at high speed
    as well as on wet slippering road surfaces.
    Improved steering response and precision: The vehicle response to steering input becomes quicker and more
    precise throughout the vehicle enter speed range.
    High speed straight line stability: The vehicles straight line stability at high speed is improved. Negative effects
    of road irregularities and crosswinds on the vehicles stability are minimized.
    Improved rapid lane-changing maneuvers: This is stability in lane changing at high speed is improved. In high
    speed type operation become easier. The vehicle is less likely to go into a spin even in situations in which the
    driver must make a sudden and relatively large change of direction.
    Smaller turning radius: By steering the rear wheels in the duration opposite the front wheels at low speed, the
    vehicles turning circle is greatly reduced. Therefore, vehicle maneuvering on narrow roads and during parking
    become easier.
    Controlling: Computer-controlled Quadrasteer can be switched on and off and has an effective trailer towing
    mode.


    Disadvantages
    The 4ws, due to construction of many new
    components, the system becomes more
    expensive.
    The system includes as many components
    (especially electronically) there is always a
    chance to get any of the part inactive, thus the
    system become in operative.
    Application
    Parking: During a parking a vehicles driver typically turns the steering wheels through a large angle to achieve a small tuning radius. By
    counter phase steering of the rear wheels, 4ws system realizes a smaller turning radius then is possible with 2ws system. As a result
    vehicle is turned in small radius at parking.
    Junctions: On a cross roads or other junction where roads intersect at 900 degrees or tighter angles, counter phase steering of the rear
    wheels causes the front and rear wheels to follow more-less path. As a result the vehicle can be turned easily at a junction.
    Slippery road surfaces: During steering operation on low friction surfaces, steering of the rear wheels suppress sideways drift of the
    vehicles rear end. As a result the vehicles direction is easier to control.
    High speed straight line operation: When traveling in a straight line at high speed, a vehicles driver frequently needs to make small
    steering correction to maintain the desired direction, in phase steering of the rear wheels minimizes these corrective steering inputs.
    Narrow roads: On narrow roads with tight bends, counter-phase steering of the rear wheels minimizes the vehicles turning radius,
    thereby reducing side-to side rotation of the steering wheels and making the vehicle easier to turn.
    U-Turns: By minimizing the vehicles turning radius, counter phase steering of the rear wheels enables U-turns to be performed easily
    on narrow roads.

    Work done so for
    Literature Survey-
    Net Survey-
    Watching Video -
    Market Survey- Product are available market or not than available to plus point of my project. To
    search the different part of my project in the market low and high cost will be available.
    Project Planning- First of all plan this project.
    Objective- Short term, Midterm, Long term so on.
    Resources- Budget, Hardware, Purchasing plan, Man-hour, Team, Recruitment.
    Partners - Joint Venture, Responsibility.
    Measurement Success- Sales, Profit, Turnover, Market share, Quality, Efficiency.

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