OPTIMIZING THE AUTOMATIC ENGINE START/STOP MECHANISM FOR DRIVING OPERATION

• Main Authors: BUSCH Rainer, CRISP Nicholas Dashwood
• Format: Patent
• Language: English
• Published: 20.04.2017
• Subjects: BLASTING; COMBUSTION ENGINES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLETECHNOLOGY; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR; STARTING OF COMBUSTION ENGINES; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

A system and method for starting/stopping an engine in a moving vehicle include stopping the engine, by a controller, in response to a time needed to start the engine from a stopped state and attain an engine speed corresponding to a driveshaft speed when stopping the engine being less than a target time, and starting the engine in response to the time needed reaching the target time. A start/stop vehicle having an engine includes a driveshaft speed sensor and a controller configured to stop the engine while the vehicle is moving with a vehicle speed below a threshold speed in response to a time associated with starting the engine and powering a driveshaft to attain a driveshaft speed measured by the driveshaft speed sensor and stored from a previous engine stopping event being less than a threshold time.