Daimler Ag

Mercedes-benz Group Ag

Nils Tonius

Tobias Haerter

Jonathan Zeibig

Markus Brandenburg

Thomas Kull

Markus Rossmeier

Christoph Doerr

Peter Fritzmann

Emmanuel Chrisofakis

Frank Scheffel

Joachim Schroeder

Tobias HÄRTER

Markus ROßMEIER

Joachim SCHRÖDER

A method for controlling a hybrid drive system for a motor vehicle involves, in an operation in which both the internal combustion engine and the electric machine introduce drive torques into the hybrid gearbox to drive the drive wheel, employing third limit torques for the third gearbox gear are provided in a first mode, and second limit torques for the second gearbox gear are provided in a second mode. A maximum third limit torque of the first mode is greater than a maximum second limit torque of the second mode.

Method for controlling a hybrid drive system for a motor vehicle

A method for controlling a positive gearshift unit includes, in an engagement procedure, a coupling element, which is connected to a first coupling half and which has a beveled coupling toothing, is brought into engagement with a blocking element, which has a blocking toothing and which is connected to a second coupling half, and is brought into engagement with a catch element, which is connected to the second coupling half, which has a beveled catch toothing, and which is able to move circumferentially with respect to the blocking element. In the engagement procedure, a touch-point is set which comes after a crossing of a synchronous rotational speed in a rotational speed difference profile.

Method for controlling a positive gearshift unit

A transmission device for a motor vehicle is disclosed. The transmission device includes at least one coupling unit, which for non-rotatable connection of two coupling elements, has a friction-locking unit and a form-locking unit connected in parallel to the friction-locking unit. The device further includes a first hydraulic and/or pneumatic actuator for actuation of the form-locking unit, a second hydraulic and/or pneumatic actuator for actuating the friction-locking unit, and a directional valve for controlling the first actuator provided for actuation of the form-locking unit. The directional valve has a control line connection which in at least one operational state is connected in pressure terms to the second actuator provided for actuation of the friction-locking unit.

Transmission device for a motor vehicle

A coupling device for a motor vehicle is disclosed. The coupling device has a friction-locking unit and a form-locking unit which is connected in parallel with the friction-locking unit and has at least two form-locking elements which can be connected to one another by form-locking, are disposed so as to be movable along a direction of actuation relative to one another, and in each case have at least one claw, where at least some of the claws in each case have a top surface which is oriented obliquely with respect to the direction of actuation.

Coupling device for a motor vehicle

An interlocking gearshift unit for a motor vehicle drive train has a first clutch half and a second clutch half which are arranged so that they can slide relative to one another along an actuating direction in order to produce a connection with a fixed rotational relationship. At least the first clutch half has at least one first engagement element and a second engagement element, which can move with respect to the first engagement element. The first and second engagement elements are arranged so that they can move with respect to one another in a circumferential direction.

Form-fitting switching unit for a motor vehicle drive train

Growing community of inventors

Weinstadt, Germany

Nils Tonius