Patent · US Active

Transmission device for a motor vehicle

US9939028B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Nils Tonius · Waiblingen, DE
Markus Brandenburg · Eßlingen, DE
Tobias Haerter · Stuttgart, DE
Markus Rossmeier · Bamberg, DE

Key dates

Filing date	Jun 13, 2014
Grant date	Apr 10, 2018
Priority date	—
Expiry date	Sep 13, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2200/2094
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.