Question

3. The figure below shows the planetary gear trains that form the semi-automatic transmission from a Model-T. This was the forerunner of today's automatic transmissions. A plate clutch and two band clutches were engaged and released by a system of pedals and levers to shift gears. The proper sequence is shown in the table below (a) Determine the fixed carrier train ratios for the two planetary gear trains that make up this system (b) Determine the output/input speed ratios for each of the settings in the table. N, 33 T N,#24 T N 27T N 21 T N7 30 T Clutch Ourput to Differential Input rom Engine Setting Clutch Low Disengaged Disengaged Engaged High Engaged Disengaged Disengaged Reverse Disengaged Engaged Disengaged Neutral Disengaged Disengaged Disengaged

Answer 1

Considen tu egivn sytnede uPt Planetes Sean Arain Cuol?) olP Out Bi N3

21 F in ce -theValue òb tubixel Cchsien-h.dio is/.4 <ettinjs ln iven tbe Now Consthid α tıbleto ind out te speed gelation Xt y n-t Cosides the above table -sPeed with ans Pl Substtue Valus na ex?aession 21 27 Hence the Valye

enaged ble input output inPut nPut 21 36 Thus the V-lve olr 4o ilP 13 21 2.

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