EP 2230393 A2 20100922 - Internal combustion engine resonance start detection system and method and internal combustion engine controller
Title (en)
Internal combustion engine resonance start detection system and method and internal combustion engine controller
Title (de)
System und Verfahren zur Detektion der Verbrennungsmotorresonanz beim Start und Verbrennungsmotorsteuerung
Title (fr)
Système et procédé de détection de démarrage de la résonance de moteur à combustion interne, et contrôleur de moteur à combustion interne
Publication
Application
Priority
JP 2009068230 A 20090319
Abstract (en)
A crankshaft rotation speed variation É is compared with variation determination thresholds A1, A2, and A3 to suppress the magnitude of resonance of a dual mass flywheel (DMF). The variation determination thresholds A1 to A3 are set based on an operation state that reflects the intention of the vehicle's driver to accelerate or decelerate, which is, for example, a brake pedal depression operation (S102 to S108). Appropriate variation determination thresholds A1 to A3 are set regardless of whether the vehicle's driver is actually performing a braking operation or is not performing a braking operation. Thus, it is possible to appropriately detect the start of resonance of the DMF accurately based on the information on the intention of the vehicle's driver including whether or not a braking operation is being performed. Thus, it is possible to reduce or eliminate the variation of output generated by an engine, at an appropriate timing.
IPC 8 full level
F02D 41/14 (2006.01); F02D 41/00 (2006.01); F02D 41/02 (2006.01); F02D 41/04 (2006.01); F02D 41/12 (2006.01)
CPC (source: EP)
F02D 41/12 (2013.01); F02D 41/1498 (2013.01); F02D 41/0005 (2013.01); F02D 41/022 (2013.01); F02D 41/045 (2013.01); F02D 41/123 (2013.01); F02D 2041/0022 (2013.01); F02D 2200/501 (2013.01); F02D 2250/28 (2013.01)
Citation (applicant)
- EP 2031223 A2 20090304 - TOYOTA MOTOR CO LTD [JP]
- DE 3705278 A1 19880511 - BOSCH GMBH ROBERT [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA ME RS
DOCDB simple family (publication)
EP 2230393 A2 20100922; EP 2230393 A3 20110706; EP 2230393 B1 20160831; JP 2010222987 A 20101007; JP 4715940 B2 20110706
DOCDB simple family (application)
EP 10250502 A 20100318; JP 2009068230 A 20090319