SYSTEMS AND METHODS FOR PERFORMING ENGINE DE-RATE CONTROL OPERATION OF A VEHICLE

Methods and systems, using a controller (), for performing de-rate operation of an engine () is disclosed. Controller () includes a de-rate condition detection unit (), an operational parameter adjustment unit (), and a de-rate condition monitoring unit (). De-rate condition detection unit () detects a low fuel condition based on a current delivery pressure level of the engine () detected at least one of: in a fuel tank () and along an inlet fuel rail () connecting the fuel tank () to the engine (). Operational parameter adjustment unit () performs the de-rate operation on the engine () by adjusting one or more operational parameters related to an engine () load based on the detected low fuel condition. De-rate condition monitoring unit () monitors the detected low fuel condition for a predetermined time period in response to the operational parameter adjustment performed by operational parameter adjustment unit ().