Dana Belgium N.v.

Hein Nevejant

Joachim Van Dingenen

Jan A Bedert

Filip D Schacht

Jessica Versini

Kurt Cattoor

Victor Barrios Gonzalez

Systems are provided for a clutch system. In one example, a system includes a shift rod comprising an axial channel, a shift fork, a first spring system arranged on a first side of the shift fork, and a second spring system arranged on a second side of the shift fork, the second side opposite the first side, wherein the axial channel is fluidly coupled to a cavity of the first spring system or the second spring system during an actuation of the shift rod and the shift fork.

Systems for a damping system

Methods and systems are provided for a transmission clutch. In one example, the clutch has a pressure control system that includes a piston housing enclosing a piston cavity and a piston, as well as a diffusor positioned in the piston cavity. The diffusor may have tangential channels for directing flow of a fluid into the piston cavity.

Wet clutch pressure control

Methods and systems are provided for a transmission. In one example, the transmission may include a brake system arranged in-line with a second brake along a longitudinal axis of the transmission. Each brake may have a plurality of separator plates which may be secured to a housing of the transmission by at least one pin. The brake system may further include an end plate positioned between the first brake and the second brake, the end plate secured to the housing by a plurality of dowel pins.

In-line brake system for transmission

A controllable hydrodynamic retarder system for a transmission including an electronic controller unit (ECU) for selecting and controlling brake torque by adjusting a retarder outlet pressure is described. The system can include an algorithm to calculate a retarder outlet pressure set point or tables or brake torque curves or profiles to allow the ECU to calculate or look up the functional relationships between the retarder RT outlet pressure, a vehicle or rotor speed, and a brake torque curve selected by the operator to provide the selected RT outlet pressure. The systems disclosed can also include a cooling system or utilize a vehicles engine cooling system. In one embodiment, the cooler can be shared between a transmission and the controllable retarder and can be adjusted to accommodate cooling requirements. The ECU can also make adjustments to the RT outlet pressure to address short term and long term RT overheating protection independent of the cooling system.

Hydrodynamic retarder system and method of controlling a hydrodynamic retarder system

A hydrodynamic retarder system for a vehicle is provided. In a first operational state with the vehicle powered on and a retarder deactivated, a pump directs fluid flow from a fluid sump to a retarder inlet valve in the closed position and directs fluid flow to a second sump. In a second operational state with the vehicle on and the retarder activated, the retarder inlet valve moves to the open position directing fluid flow into a retarder chamber and flowing out of the retarder chamber after filling a second volume and discharging to the second sump.

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Houthulst, Belgium

Hein Nevejant