The stick diagram of a 4-speed FWD AT and the clutch table are shown in the...

 

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The stick diagram of a 4-speed FWD AT and the clutch table are shown in the drawing. The 2nd gear ratio and the final drive are 1.61 and 2.94 respectively. The tire radius is 11 inches and the chain ratio is 1.0. The vehicle frontal projected area is 22 ft² and the air drag coefficient is 0.30. The vehicle weight is 2800 lbs. The roll resistance coefficient is 0.02 and the transmission efficiency is 0.86. Clutch C3 is only applied for engine braking and is open for normal driving conditions. 1. The engine speed drops 626 RPM during a 3-4 shift when the vehicle speed is 45 mph and the torque converter is locked up. Determine the planetary gear train parameters B1, B2 and ß3 for the transmission and the final drive. Determine also the first gear and reverse gear ratios. 2. The transmission input torque is given as Tin. Determine the reaction torque in the 1st, 2nd, 4th and the reverse gear respectively in terms of the input torque. 3. The car is being driven at a speed of 65 mph with an acceleration of 2 ft/s² on a 2% slope in the 4th gear. Determine the reaction torque in the band clutch B. 4. The transmission is making a 3-4 upshift. During the shift process, the sensors of the control system measure a vehicle speed of 45 mph and a transmission input speed of 1800RPM. Determine the angular velocity in RPM of sun S1 and sun S2 respectively. ATF Pump Clutch Table B R₁ IKH C₂ B₁ R₂ B₂ Wout Chain in @ The stick diagram of a 4-speed FWD AT and the clutch table are shown in the drawing. The 2nd gear ratio and the final drive are 1.61 and 2.94 respectively. The tire radius is 11 inches and the chain ratio is 1.0. The vehicle frontal projected area is 22 ft² and the air drag coefficient is 0.30. The vehicle weight is 2800 lbs. The roll resistance coefficient is 0.02 and the transmission efficiency is 0.86. Clutch C3 is only applied for engine braking and is open for normal driving conditions. 1. The engine speed drops 626 RPM during a 3-4 shift when the vehicle speed is 45 mph and the torque converter is locked up. Determine the planetary gear train parameters B1, B2 and ß3 for the transmission and the final drive. Determine also the first gear and reverse gear ratios. 2. The transmission input torque is given as Tin. Determine the reaction torque in the 1st, 2nd, 4th and the reverse gear respectively in terms of the input torque. 3. The car is being driven at a speed of 65 mph with an acceleration of 2 ft/s² on a 2% slope in the 4th gear. Determine the reaction torque in the band clutch B. 4. The transmission is making a 3-4 upshift. During the shift process, the sensors of the control system measure a vehicle speed of 45 mph and a transmission input speed of 1800RPM. Determine the angular velocity in RPM of sun S1 and sun S2 respectively. ATF Pump Clutch Table B R₁ IKH C₂ B₁ R₂ B₂ Wout Chain in @