System und Verfahren für Kraftmaschinenleerlaufstoppsteuerung mit Startermotorschutz

• Main Authors: Zhao, Yanan, Sangameswaran, Sangeetha, Boesch, Mathew Alan
• Format: Patent
• Language: German
• Published: 04.01.2024
• Subjects: ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE; BLASTING; CHECKING-DEVICES; COMBUSTION ENGINES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CONTROLLING COMBUSTION ENGINES; GENERATING RANDOM NUMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICS; REGISTERING OR INDICATING THE WORKING OF MACHINES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; SIGNALLING; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR; STARTING OF COMBUSTION ENGINES; TIME OR ATTENDANCE REGISTERS; TRAFFIC CONTROL SYSTEMS; TRANSPORTING; VEHICLES IN GENERAL; VOTING OR LOTTERY APPARATUS; WEAPONS

Hybridfahrzeugsystem, umfassend:eine Kraftmaschine;einen Startermotor, der zum Starten der Kraftmaschine konfiguriert ist; undeine Steuerung, die dazu konfiguriert ist, einen Kraftmaschinenstopp während eines Fahrzeugstoppereignisses als Reaktion darauf, dass eine mit dem Neustart der Kraftmaschine bei Fahrzeugstoppereignissen verbundene Startermotorwärme einen entsprechenden Wärmeschwellenwert innerhalb eines Zeitfensters übersteigt und dass eine vorhergesagte Fahrzeugstoppdauer des Fahrzeugstoppereignisses kürzer als andere Fahrzeugstoppereignisse innerhalb des Zeitfensters ist, zu sperren. A system and method for controlling engine idle stop in a hybrid vehicle that uses predictive information to schedule engine stops with relatively longer stop duration time to gain more fuel savings and extend life of starter motor. More specifically, predictive information may be used to determine potential vehicle stop events, along with corresponding stop duration times, within a time window. An engine stop scheduler and/or controller may be configured to schedule stops of longer duration for optimal total engine stop time. Similarly, taking into account constraints imposed by the thermal limits of the motor, engine stop may be inhibited for predicted short events to allow engine stop at later longer stop events.