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3) STEP 1: Integrate dv/dt term to find the vehicle velocity for 10 sec. The calculation procedure should be as follows: a. b. C.
3) STEP 1: Integrate dv/dt term to find the vehicle velocity for 10 sec. The calculation procedure should be as follows: a. b. C. Calculate the constant values of gear ratio (i), maximum tractive force, (F). and at t=0, the initial values for MG2 speed (NG), MG1 speed (NG), engine speed (N.), engine torque (T.), engine power (P.), MG1 torque (TMG), ring torque (TR), circulating power (PC) With V = y(0) = 1 x 100 m/s at t=0 and a time step, h = 0.0001 s, use the 4th order Runge-Kutta method to estimate the vehicle speed at each time step for a total of 10 s. At first time step (t,+h), estimate i. MG2 speed (N2) ii. MG1 speed (NG) iii. engine speed (N.) iv. engine torque (T) V. engine power (P.) vi. circulating power (P) vii. tractive effort (F.), first estimate t max 1. If F>F output torque (To), first estimate then F=F tmax viii. ix. ring torque (TR) x. MG1 torque (TMG) xi. MG2 torque (TG2) >T then MG2,max xii. xiii. 1. If T MG2 T a. =T MG2 MG2,max b. Recalculate final output torque (Tou) c. Recalculate final tractive effort (F.) total resistance force (FR) acceleration (dv/dt) d. Use these values to find the value of vehicle velocity at current time step, (t,+h) using 4th order RK method e. Repeat the procedure at all subsequent time steps using the calculated vehicle
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