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Changes in the frictional force of the road and wheels may result in slippage of the vehicle causing inconvenience to the vehicle user. To overcome this then required a slip control on the vehicle to be in minimal slip conditions. In this study developed Direct Torque Control (DTC) control methods on three-phase induction motors used in haul trucks as vehicles. By looking at the existing regulatory methods then selected sliding mode method to overcome the problem of slip that occurs on the vehicle. The DTC method is used to adjust the torque directly, while the sliding mode method is used to adjust and minimize the slip that occurs on the vehicle. Simulation is done in this research. The results of the simulation show that the sliding mode control method can minimize the slip according to the setpoint of 0.5. The resulting slip is within the range of provisions of the slip value occurring in vehicles with values μ = 2 to μ = 3.

Direct Torque Control, Induction Motor, Slip, Sliding Mode Controller