Method for operating a continuously variable transmission

The invention relates to a control system in a continuously variable transmission (1) that comprises a variator unit (30), a planetary gearing (20) with a forward drive clutch (26) and a torque converter (10) with a lock-up clutch (16), which control system includes a lock-up switch valve (V1) for e...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	VAN WIJK WILHELMUS JOHANNES MARIA
Format:	Patent
Sprache:	chi ; eng
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:	The invention relates to a control system in a continuously variable transmission (1) that comprises a variator unit (30), a planetary gearing (20) with a forward drive clutch (26) and a torque converter (10) with a lock-up clutch (16), which control system includes a lock-up switch valve (V1) for engaging or disengaging the lock-up clutch (16) and a clutch engagement valve (V2) for engaging or disengaging the forward drive clutch (26). In accordance with the invention the control system includes a single electromagnetic actuator (S6) that directly or indirectly operates both the said lock-up switch valve (V1) and the said clutch engagement valve (V2).