VARIABLE VALVE TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

• Main Authors: ITOYAMA, HIROYUKI, ABE, HIROSHI, ARIGA, KENJI, SHIOZAWA, KEN, ITO, HIRONORI
• Format: Patent
• Language: English; French; Japanese
• Published: 08.08.2013
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; ENGINE PLANTS IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

In the present invention, when a crank angle sensor (12) failure is detected, thereafter, the valve aperture of a throttle valve (9) is corrected in the direction of valve closing, and engine rotational velocity limiting is executed in a manner so that the engine rotational velocity is no greater than predetermined upper limit rotational velocity. Also, a variable valve timing mechanism (2) is controlled in a manner so that the valve timing of an intake valve (1) is at a predetermined intermediate position and the variable valve timing mechanism (2) is locked at the predetermined intermediate position by means of a locking mechanism (34). La présente invention concerne un dispositif permettant, suite à la détection d'une défaillance de capteur de position de vilebrequin (12), la correction de l'ouverture de papillon d'un papillon des gaz (9) dans la direction de la fermeture de papillon, et l'exécution d'une limitation de vitesse de rotation de moteur de sorte que la vitesse de rotation de moteur ne soit pas supérieure à une vitesse de rotation de limite supérieure prédéterminée. Le dispositif permet également la commande d'un mécanisme de distribution à programme variable (2) de sorte que le réglage de distribution d'une soupape d'admission (1) soit à une position intermédiaire prédéterminée et que le mécanisme de distribution à programme variable (2) soit verrouillé à la position intermédiaire au moyen d'un mécanisme de verrouillage (34).