automobile

TAMIL AZHAGAR

TAMIL AZHAGAR

@tamil-7y6zGo Oct 26, 2024

Hi frnds,
Consider a four wheeler which is lifted from ground. non of it's wheel touches the ground.
Now vehicle is started, put on first gear and clutch is released.
Just consider the situation and tell me about the rotation of wheels.
No brake is applied.

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  • Ramani Aswath

    Ramani Aswath

    @ramani-VR4O43 Mar 17, 2015

    The driven wheels have to rotate. If it is the usual rear wheel drive. the front wheels will not rotate. Or is that too simple an explanation?

  • Sarathkumar Chandrasekaran

    Sarathkumar Chandrasekaran

    @sarathkumar-FEGRPw Mar 17, 2015

    If its an all wheel Drive 4*4 , Then what happens? Will there be a minute difference between the pair of rear wheels and front ones ?

  • Sarathkumar Chandrasekaran

    Sarathkumar Chandrasekaran

    @sarathkumar-FEGRPw Mar 17, 2015

    Take Mahindra Thar 4*4 as example and please verify us Sir?

  • Ramani Aswath

    Ramani Aswath

    @ramani-VR4O43 Mar 17, 2015

    This gives you all info on 4 wheelers:
    #-Link-Snipped-#

  • TAMIL AZHAGAR

    TAMIL AZHAGAR

    @tamil-7y6zGo Mar 18, 2015

    hi sir, what abt the left side wheel rotation and that of right side wheel?
    Is there any difference btw the speed of these two wheels?

    A.V.RamaniThe driven wheels have to rotate. If it is the usual rear wheel drive. the front wheels will not rotate. Or is that too simple an explanation?
  • Rishabh1234

    Rishabh1234

    @rishabh1234-Oi9Xdl Mar 18, 2015

    Tamilazhaganhi sir, what abt the left side wheel rotation and that of right side wheel?
    Is there any difference btw the speed of these two wheels?

    No,there will be no difference between the rpm of left and right wheel as the torque required to overcome the inertia and friction effects will be same for both the wheels.

  • Ramani Aswath

    Ramani Aswath

    @ramani-VR4O43 Mar 18, 2015

    TamilazhaganIs there any difference btw the speed of these two wheels?

    As Rishab says above, there is no difference ordinarily. However, when the car takes a turn the wheel on the inside curve has to rotate less than the outer wheel. That is taken care of by the differential. In your example the wheels are off ground so there should be no difference in RPM.

  • TAMIL AZHAGAR

    TAMIL AZHAGAR

    @tamil-7y6zGo Mar 18, 2015

    A.V.RamaniAs Rishab says above, there is no difference ordinarily. However, when the car takes a turn the wheel on the inside curve has to rotate less than the outer wheel. That is taken care of by the differential. In your example the whells are off ground so there should be no difference in RPM.

    ya, sure. consider the situation that one wheel is lifted and another wheel is in ground. now what will happen?

  • Rishabh1234

    Rishabh1234

    @rishabh1234-Oi9Xdl Mar 18, 2015

    Tamilazhaganya, sure. consider the situation that one wheel is lifted and another wheel is in ground. now what will happen?

    It will depend on the type of differential used in the car.if it is an open differential,then only the wheel in air will rotate and that in ground will remain stationary.else if it is locked differential then both the wheel will rotate with same rpm.
    Generally, limited slip differential is used in cars which is somewhere mid-way of the above two differentials.In that case both wheel will rotate with different non-zero rpm.