Method for controlling a transmission unit for motor vehicles and transmission unit applying such a method

摘要

Method for regulating a transmission unit for motor vehicles, in particular a transmission unit (1) which makes use of a belt variator (2), a reversing unit (20) and hydraulically controlled drive-off coupling means, whereby these drive-off coupling means consist of a forward coupling (18) and a reverse coupling (19) which can be excited via pressure regulating means with an adjustable clutch pressure, characterized in that the clutch pressure is hydraulically regulated, both as a function of a Pitot pressure which is representative for the engine speed, namely the engine Pitot pressure, and as a function of a regulated pressure which is set by means of an electronically controlled valve (48).