AUTOMATIC TRANSMISSION CONTROL DEVICE FOR VEHICLE

• Main Authors: AKITA HIROSHI, ASAI KAZUHARU, TAKEBAYASHI NORITAKA
• Format: Patent
• Language: English
• Published: 08.12.2011
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; 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; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To control a composite inertia torque accompanying a reverse input from the side of a driving wheel.SOLUTION: Since a lock-up clutch 26 is released so as to serve an engine inertia torque Ti accompanying release of the lock-up clutch 26 to be in a reverse phase to a transmission inertia torque Ti accompanying a reverse input from the side of a driving wheel 24, for example, at least a part of the transmission inertia torque Ti can be offset by the engine inertia torque Ti. In other words, a peak value of composite inertia torque Tina of the engine inertia torque Ti and the transmission inertia torque Ti accompanying a reverse input from the side of the driving wheel 24 can be controlled. Thus, for example, a belt interposing pressure Pd supposing a reverse input from the side of the driving wheel 24, an engaging pressure Pc of an engaging device such as an ahead clutch C1 and an astern brake B1, or a line oil pressure Pwhich serves as an initial pressure of the belt interposing pressure Pd and the engaging pressure Pc can be reduced to allow fuel consumption to be improved.