SYSTEM AND METHOD FOR CONTROLLING A POWERTRAIN SYSTEM OF A VEHICLE

The present disclosure relates to a computer system for a powertrain system of a vehicle including an internal combustion engine connectable to one or more drive wheels and a transmission arrangement coupled to the engine by a controllable clutch. The transmission arrangement has a gearbox with a displaceable gear engaging device movable between a gear wheel disengaging position and a gear wheel engaging position. Processing circuitry is configured to selectively operate the powertrain system in operational modes including an engine stop freewheeling mode, in which an output shaft of the engine is non-rotating and the engine is disconnected from the one or more drive wheels. During the engine stop freewheeling mode, the processing circuitry determines that a position of the gear engaging device is different from an expected position for an engaged gear and, in response, determines to return the gear engaging device to the expected position.