SYSTEM AND METHOD FOR CONTROLLING A POWERTRAIN OF A VEHICLE

A powertrain system comprising an engine connectable to a wheel, a clutch, and a geartrain configured to be coupled to a power output shaft of the engine by the clutch comprising a gearbox output shaft configured to be drivingly connected to the wheel and receive torque from the engine. The powertrain system further comprising a control unit configured to selectively operate the engine, the clutch, the geartrain in a freewheeling mode, in which the power output shaft is non-rotating and the engine is disconnected from the wheel. The powertrain system further configured to in the freewheeling mode, obtain real-time data indicative of a hard braking event from a service brake; based on the obtained real-time data, send an engaging command to the clutch; and control the clutch to a target torque transfer position.