Wabco Gmbh

Wabco Gmbh & Co Ohg

Ingo Meyer

Tino Wiggers

Mike Heurich

Reiner Hölscher

Holger Kelpe

Marcus Schulz

Jan Spremberg

Stefan Klik

Andreas Sievers

Hansjörg Kraft

Ralph Schumacher

Reiner Krugener

Reiner KRÜGENER

An assembly for actuating a double-acting shift cylinder of a shift assembly of an automatic transmission of a motor vehicle includes a hydraulic fluid reservoir having a motor-driven hydraulic pump and two control valves that are each connected to a pressure supply line of the hydraulic pump and to a return line to the hydraulic fluid reservoir. The shift cylinder has two pressure chambers that are each connected to one of the control valves. The control valves each connect one pressure chamber of the shift cylinder to the pressure supply line of the hydraulic pump or to the return line to the hydraulic fluid reservoir. The actuating assembly includes at least one pressure-limiting valve that connects the pressure supply line to the return line if a hydraulic over-pressure is present. The control valves can be 3/2-directional valves having integrated pressure-limiting valves.

Double-acting shift cylinder actuating assembly

A gear actuator for shifting a gear includes an alley switch actuator, a gear switch actuator and a shift finger, which can be moved by the alley switch actuator and the gear switch actuator for the purpose of transferring a switching movement to the gear. An alley switch sliding element is connected with the alley switch actuator, and a gear switch sliding element is connected with the gear shift actuator. The shift finger is supported movably at the alley switch sliding element and at the gear switch sliding element.

Gear actuator

A method and system for determining the actuating pressure of a servo cylinder that is actuated by pressurized fluid. The actuation displacement of the servo cylinder is obtained from a sensor or other device. A pressure sensor measures inflow pressure at one point of a pressurized fluid line supplying the servo cylinder. The actuating pressure is determined based on the inflow pressure and the change in the actuation displacement of the servo cylinder.

Method and system for determining the actuating pressure of a servo cylinder actuated by pressurized fluid

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Rehburg-Loccum, Germany

Ingo Meyer