Patent Number: 7,707,911

Title: Hydraulic control for a dual clutch transmission

Abstract: A dual clutch transmission which has a first clutch, actuated by a first hydraulic cylinder, a second clutch, actuated by a second hydraulic cylinder, shift devices for shifting gears, which are actuated by respective hydraulically operated cylinders, and a hydraulic energy source for supplying the hydraulic cylinders and the hydraulically operated cylinders with hydraulic energy. The hydraulic energy source has a first pump, a second pump and an electric drive driving the second pump.

Inventors: Grethel; Marco (Buehlertal, DE), Homm; Manfred (Buehl-Neusatz, DE), Mueller; Eric (Kaiserslautern, DE), Staudinger; Martin (Ettlingen, DE)

Assignee: Luk Lamellen und Kupplungsbau Beteiligungs KG

International Classification: F16H 47/00 (20060101)

Expiration Date: 5/04/12018