Method for pressure control of forward gear shift element and reverse gear shift element in continuous automatic transmissions involves emptying forward and reverse gear shift elements through temperature-dependent pressure regulators

摘要

The method involves emptying the forward gear shift element (1) and reverse gear shift element (2) through pressure regulators which each control the shift element valves (3,4) so that the required pressure in the shift elements is guaranteed by fixed diaphragms (6,7) on the selector slide release side. The pressure regulator which is assigned to the reverse gear shift element is also used to control the converter clutch (9). Independent claim describes pressure control assembly with shift element valves for the forward and reverse gear shift elements. A fixed diaphragm is provided between each valve and selector slide release side to ensure that the pressure in the shift elements cannot break down without suitable command.