Lock-up control system for a torque converter

A lock-up control system including a lock-up differential pressure generator (3,4) and a controller (5) that is programmed to: when increasing a lock-up differential pressure command value (T1) with time to establish the lock-up state of the torque converter (2), switch a gradient of the lock-up dif...

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Bibliographische Detailangaben
Hauptverfasser:	KUBOTA, MASAYA, YAGI, KAN, TOTSUKA, SEIJI, SATOU, KATSUNORI, TAKENAKA, HIROYUKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A lock-up control system including a lock-up differential pressure generator (3,4) and a controller (5) that is programmed to: when increasing a lock-up differential pressure command value (T1) with time to establish the lock-up state of the torque converter (2), switch a gradient of the lock-up differential pressure command value (T1) from a first gradient to a predetermined gradient (d1) larger than the first gradient when an actual slip rotation speed (\|Ne-Nt\|) is decreased to a predetermined slip rotation speed value (Ns) or less; and switch the gradient of the lock-up differential pressure command value (T1) from the predetermined gradient to a second gradient (d2) smaller than the predetermined gradient when the actual slip rotation speed (\|Ne-Nt\|) exceeds the predetermined slip rotation speed value (Ns) again after being decreased to the predetermined slip rotation speed value (Ns) or less.