Max Grade: 25 marks A vehicle with a parallel hybrid drivetrain is cruising at 120 km/h. The vehicle specifications are as follows: Vehicle mass 1800 kg Max ICE Speed Coefficient of drag (Ca) 0.32 Max ICE Torque 5500 rpm 200 Nm Coefficient of rolling resistance (fr) 0.018 Max MG Speed 8000 rpm Air Density 1.168 kg/m Max MG Torque 65 Nm 14 in 3.5:1 1:1 0.88 1.5 Frontal Area ig 2.4 m Road gradient The mechanical coupling is through a gearbox as shown: 250 ICE 1. ICE is connected to Gear 1 2-60 2. MG is connected to Gear 2 O/P 3. The gearbox output (Gear 3) is connected to the transmission 02 MG z=40 Requirements for Assignment Submission 1. Assuming that the MG provides its maximum torque and the balance is provided by the engine, calculate the following: a. The torque required at the output of the gearbox (T3 in Nm) b. The torque required to be provided by the engine (T in Nm) c. The speed of rotation of the output shaft (N; in rpm) d. The ICE speed (N in rpm) e. The MG speed (N2 in rpm) f. Ignoring losses in the gearbox, i. The total power at the output of the gearbox (P3 in kW) ii. The power provided by ICE (P, in kW) iii. The power provided by MG (P2 in kW) Ts